update at 2026-03-21 18:44:12

2026-03-21 18:44:12 +08:00
parent f9d715157f
commit 89b1f97a6f
52 changed files with 3510 additions and 562 deletions
--- a/dash/staging/kterm/kterm-kindle-2.6.zip
+++ b/dash/staging/kterm/kterm-kindle-2.6.zip
--- a/dash/staging/kterm/kterm-release-latest.json
+++ b/dash/staging/kterm/kterm-release-latest.json
@@ -0,0 +1,200 @@
+{
+  "url": "https://api.github.com/repos/bfabiszewski/kterm/releases/26772867",
+  "assets_url": "https://api.github.com/repos/bfabiszewski/kterm/releases/26772867/assets",
+  "upload_url": "https://uploads.github.com/repos/bfabiszewski/kterm/releases/26772867/assets{?name,label}",
+  "html_url": "https://github.com/bfabiszewski/kterm/releases/tag/v2.6",
+  "id": 26772867,
+  "author": {
+    "login": "bfabiszewski",
+    "id": 3366666,
+    "node_id": "MDQ6VXNlcjMzNjY2NjY=",
+    "avatar_url": "https://avatars.githubusercontent.com/u/3366666?v=4",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/bfabiszewski",
+    "html_url": "https://github.com/bfabiszewski",
+    "followers_url": "https://api.github.com/users/bfabiszewski/followers",
+    "following_url": "https://api.github.com/users/bfabiszewski/following{/other_user}",
+    "gists_url": "https://api.github.com/users/bfabiszewski/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/bfabiszewski/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/bfabiszewski/subscriptions",
+    "organizations_url": "https://api.github.com/users/bfabiszewski/orgs",
+    "repos_url": "https://api.github.com/users/bfabiszewski/repos",
+    "events_url": "https://api.github.com/users/bfabiszewski/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/bfabiszewski/received_events",
+    "type": "User",
+    "user_view_type": "public",
+    "site_admin": false
+  },
+  "node_id": "MDc6UmVsZWFzZTI2NzcyODY3",
+  "tag_name": "v2.6",
+  "target_commitish": "master",
+  "name": "v2.6",
+  "draft": false,
+  "immutable": false,
+  "prerelease": false,
+  "created_at": "2020-05-21T20:24:58Z",
+  "updated_at": "2025-04-10T20:16:30Z",
+  "published_at": "2020-05-21T20:35:06Z",
+  "assets": [
+    {
+      "url": "https://api.github.com/repos/bfabiszewski/kterm/releases/assets/221834164",
+      "id": 221834164,
+      "node_id": "RA_kwDOAHb9H84NOOu0",
+      "name": "kterm-kindle-2.6-armhf.zip",
+      "label": null,
+      "uploader": {
+        "login": "bfabiszewski",
+        "id": 3366666,
+        "node_id": "MDQ6VXNlcjMzNjY2NjY=",
+        "avatar_url": "https://avatars.githubusercontent.com/u/3366666?v=4",
+        "gravatar_id": "",
+        "url": "https://api.github.com/users/bfabiszewski",
+        "html_url": "https://github.com/bfabiszewski",
+        "followers_url": "https://api.github.com/users/bfabiszewski/followers",
+        "following_url": "https://api.github.com/users/bfabiszewski/following{/other_user}",
+        "gists_url": "https://api.github.com/users/bfabiszewski/gists{/gist_id}",
+        "starred_url": "https://api.github.com/users/bfabiszewski/starred{/owner}{/repo}",
+        "subscriptions_url": "https://api.github.com/users/bfabiszewski/subscriptions",
+        "organizations_url": "https://api.github.com/users/bfabiszewski/orgs",
+        "repos_url": "https://api.github.com/users/bfabiszewski/repos",
+        "events_url": "https://api.github.com/users/bfabiszewski/events{/privacy}",
+        "received_events_url": "https://api.github.com/users/bfabiszewski/received_events",
+        "type": "User",
+        "user_view_type": "public",
+        "site_admin": false
+      },
+      "content_type": "application/zip",
+      "state": "uploaded",
+      "size": 411954,
+      "digest": null,
+      "download_count": 30184,
+      "created_at": "2025-01-20T12:54:44Z",
+      "updated_at": "2025-01-20T12:54:46Z",
+      "browser_download_url": "https://github.com/bfabiszewski/kterm/releases/download/v2.6/kterm-kindle-2.6-armhf.zip"
+    },
+    {
+      "url": "https://api.github.com/repos/bfabiszewski/kterm/releases/assets/221834154",
+      "id": 221834154,
+      "node_id": "RA_kwDOAHb9H84NOOuq",
+      "name": "kterm-kindle-2.6-armhf.zip.sig",
+      "label": null,
+      "uploader": {
+        "login": "bfabiszewski",
+        "id": 3366666,
+        "node_id": "MDQ6VXNlcjMzNjY2NjY=",
+        "avatar_url": "https://avatars.githubusercontent.com/u/3366666?v=4",
+        "gravatar_id": "",
+        "url": "https://api.github.com/users/bfabiszewski",
+        "html_url": "https://github.com/bfabiszewski",
+        "followers_url": "https://api.github.com/users/bfabiszewski/followers",
+        "following_url": "https://api.github.com/users/bfabiszewski/following{/other_user}",
+        "gists_url": "https://api.github.com/users/bfabiszewski/gists{/gist_id}",
+        "starred_url": "https://api.github.com/users/bfabiszewski/starred{/owner}{/repo}",
+        "subscriptions_url": "https://api.github.com/users/bfabiszewski/subscriptions",
+        "organizations_url": "https://api.github.com/users/bfabiszewski/orgs",
+        "repos_url": "https://api.github.com/users/bfabiszewski/repos",
+        "events_url": "https://api.github.com/users/bfabiszewski/events{/privacy}",
+        "received_events_url": "https://api.github.com/users/bfabiszewski/received_events",
+        "type": "User",
+        "user_view_type": "public",
+        "site_admin": false
+      },
+      "content_type": "application/octet-stream",
+      "state": "uploaded",
+      "size": 310,
+      "digest": null,
+      "download_count": 201,
+      "created_at": "2025-01-20T12:54:43Z",
+      "updated_at": "2025-01-20T12:54:44Z",
+      "browser_download_url": "https://github.com/bfabiszewski/kterm/releases/download/v2.6/kterm-kindle-2.6-armhf.zip.sig"
+    },
+    {
+      "url": "https://api.github.com/repos/bfabiszewski/kterm/releases/assets/20954116",
+      "id": 20954116,
+      "node_id": "MDEyOlJlbGVhc2VBc3NldDIwOTU0MTE2",
+      "name": "kterm-kindle-2.6.zip",
+      "label": null,
+      "uploader": {
+        "login": "bfabiszewski",
+        "id": 3366666,
+        "node_id": "MDQ6VXNlcjMzNjY2NjY=",
+        "avatar_url": "https://avatars.githubusercontent.com/u/3366666?v=4",
+        "gravatar_id": "",
+        "url": "https://api.github.com/users/bfabiszewski",
+        "html_url": "https://github.com/bfabiszewski",
+        "followers_url": "https://api.github.com/users/bfabiszewski/followers",
+        "following_url": "https://api.github.com/users/bfabiszewski/following{/other_user}",
+        "gists_url": "https://api.github.com/users/bfabiszewski/gists{/gist_id}",
+        "starred_url": "https://api.github.com/users/bfabiszewski/starred{/owner}{/repo}",
+        "subscriptions_url": "https://api.github.com/users/bfabiszewski/subscriptions",
+        "organizations_url": "https://api.github.com/users/bfabiszewski/orgs",
+        "repos_url": "https://api.github.com/users/bfabiszewski/repos",
+        "events_url": "https://api.github.com/users/bfabiszewski/events{/privacy}",
+        "received_events_url": "https://api.github.com/users/bfabiszewski/received_events",
+        "type": "User",
+        "user_view_type": "public",
+        "site_admin": false
+      },
+      "content_type": "application/zip",
+      "state": "uploaded",
+      "size": 417136,
+      "digest": null,
+      "download_count": 17785,
+      "created_at": "2020-05-21T20:35:43Z",
+      "updated_at": "2020-05-21T20:35:49Z",
+      "browser_download_url": "https://github.com/bfabiszewski/kterm/releases/download/v2.6/kterm-kindle-2.6.zip"
+    },
+    {
+      "url": "https://api.github.com/repos/bfabiszewski/kterm/releases/assets/221772992",
+      "id": 221772992,
+      "node_id": "RA_kwDOAHb9H84NN_zA",
+      "name": "kterm-kindle-2.6.zip.sig",
+      "label": null,
+      "uploader": {
+        "login": "bfabiszewski",
+        "id": 3366666,
+        "node_id": "MDQ6VXNlcjMzNjY2NjY=",
+        "avatar_url": "https://avatars.githubusercontent.com/u/3366666?v=4",
+        "gravatar_id": "",
+        "url": "https://api.github.com/users/bfabiszewski",
+        "html_url": "https://github.com/bfabiszewski",
+        "followers_url": "https://api.github.com/users/bfabiszewski/followers",
+        "following_url": "https://api.github.com/users/bfabiszewski/following{/other_user}",
+        "gists_url": "https://api.github.com/users/bfabiszewski/gists{/gist_id}",
+        "starred_url": "https://api.github.com/users/bfabiszewski/starred{/owner}{/repo}",
+        "subscriptions_url": "https://api.github.com/users/bfabiszewski/subscriptions",
+        "organizations_url": "https://api.github.com/users/bfabiszewski/orgs",
+        "repos_url": "https://api.github.com/users/bfabiszewski/repos",
+        "events_url": "https://api.github.com/users/bfabiszewski/events{/privacy}",
+        "received_events_url": "https://api.github.com/users/bfabiszewski/received_events",
+        "type": "User",
+        "user_view_type": "public",
+        "site_admin": false
+      },
+      "content_type": "application/octet-stream",
+      "state": "uploaded",
+      "size": 310,
+      "digest": null,
+      "download_count": 135,
+      "created_at": "2025-01-20T07:58:01Z",
+      "updated_at": "2025-01-20T07:58:01Z",
+      "browser_download_url": "https://github.com/bfabiszewski/kterm/releases/download/v2.6/kterm-kindle-2.6.zip.sig"
+    }
+  ],
+  "tarball_url": "https://api.github.com/repos/bfabiszewski/kterm/tarball/v2.6",
+  "zipball_url": "https://api.github.com/repos/bfabiszewski/kterm/zipball/v2.6",
+  "body": "- add option to set cursor shape (thanks @efskap !)\r\n\r\n---\r\nfor firmware newer than 5.16.3 use a hard float version with `-armhf` suffix",
+  "reactions": {
+    "url": "https://api.github.com/repos/bfabiszewski/kterm/releases/26772867/reactions",
+    "total_count": 12,
+    "+1": 0,
+    "-1": 0,
+    "laugh": 0,
+    "hooray": 0,
+    "confused": 0,
+    "heart": 12,
+    "rocket": 0,
+    "eyes": 0
+  },
+  "mentions_count": 1
+}
--- a/dash/staging/post-jailbreak-root/dashboard/dash.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/dash.sh
@@ -11,35 +11,69 @@ STATE_DIR="$DIR/local/state"
 BACKGROUND_TIMESTAMP_FILE="$STATE_DIR/background-updated-at"
 THEME_RUNTIME_ENV_FILE="$STATE_DIR/theme-runtime.env"
 THEME_SYNC_CMD="$DIR/local/theme-sync.sh"
+PID_FILE="$STATE_DIR/dashboard.pid"
+THEME_BACKGROUND_SYNC_CMD="$DIR/local/sync-theme-backgrounds.sh"
 THEME_MENU_SERVICE_CMD="$DIR/local/theme-menu-service.sh"
 THEME_MENU_LOG_FILE="$DIR/logs/theme-menu.log"
 TOUCH_HOME_SERVICE_CMD="$DIR/local/touch-home-service.sh"
 TOUCH_HOME_LOG_FILE="$DIR/logs/touch-home.log"

 REFRESH_SCHEDULE=${REFRESH_SCHEDULE:-"2,32 8-17 * * MON-FRI"}
+SCHEDULED_SCREEN_WAKE_ENABLED=${SCHEDULED_SCREEN_WAKE_ENABLED:-true}
+REMOTE_SYNC_SCHEDULE=${REMOTE_SYNC_SCHEDULE:-"10 0 * * *"}
+REMOTE_SYNC_ENABLED=${REMOTE_SYNC_ENABLED:-true}
 FULL_DISPLAY_REFRESH_RATE=${FULL_DISPLAY_REFRESH_RATE:-0}
 SLEEP_SCREEN_INTERVAL=${SLEEP_SCREEN_INTERVAL:-3600}
 DISABLE_SYSTEM_SUSPEND=${DISABLE_SYSTEM_SUSPEND:-false}
 BACKGROUND_REFRESH_INTERVAL_MINUTES=${BACKGROUND_REFRESH_INTERVAL_MINUTES:-120}
 CLOCK_FULL_REFRESH_INTERVAL_MINUTES=${CLOCK_FULL_REFRESH_INTERVAL_MINUTES:-15}
 PRE_SLEEP_GRACE_SECONDS=${PRE_SLEEP_GRACE_SECONDS:-10}
-MANUAL_WAKE_KEEP_AWAKE_SECONDS=${MANUAL_WAKE_KEEP_AWAKE_SECONDS:-60}
+MANUAL_WAKE_KEEP_AWAKE_SECONDS=${MANUAL_WAKE_KEEP_AWAKE_SECONDS:-300}
 MANUAL_WAKE_EARLY_TOLERANCE_SECONDS=${MANUAL_WAKE_EARLY_TOLERANCE_SECONDS:-5}
+SLEEPING_SCREEN_ENABLED=${SLEEPING_SCREEN_ENABLED:-true}
 STATUS_MASK_ENABLED=${STATUS_MASK_ENABLED:-true}
 STATUS_MASK_LEFT=${STATUS_MASK_LEFT:-700}
 STATUS_MASK_TOP=${STATUS_MASK_TOP:-0}
-STATUS_MASK_WIDTH=${STATUS_MASK_WIDTH:-372}
-STATUS_MASK_HEIGHT=${STATUS_MASK_HEIGHT:-24}
+STATUS_MASK_WIDTH=${STATUS_MASK_WIDTH:-360}
+STATUS_MASK_HEIGHT=${STATUS_MASK_HEIGHT:-48}
 STATUS_MASK_PASSES=${STATUS_MASK_PASSES:-3}
 STATUS_MASK_DELAY_SECONDS=${STATUS_MASK_DELAY_SECONDS:-1}
-RTC=/sys/devices/platform/mxc_rtc.0/wakeup_enable
+RTC_WAKEUP_ENABLE=/sys/devices/platform/mxc_rtc.0/wakeup_enable
 KEEP_NATIVE_UI_STACK_RUNNING=${KEEP_NATIVE_UI_STACK_RUNNING:-false}
-
 LOW_BATTERY_REPORTING=${LOW_BATTERY_REPORTING:-false}
 LOW_BATTERY_THRESHOLD_PERCENT=${LOW_BATTERY_THRESHOLD_PERCENT:-10}

 num_refresh=0
 background_needs_redraw=true
+dashboard_exit_reason=normal
+
+on_dashboard_term() {
+  dashboard_exit_reason=SIGTERM
+  echo "Dashboard received SIGTERM"
+  exit 143
+}
+
+on_dashboard_hup() {
+  dashboard_exit_reason=SIGHUP
+  echo "Dashboard received SIGHUP"
+  exit 129
+}
+
+on_dashboard_int() {
+  dashboard_exit_reason=SIGINT
+  echo "Dashboard received SIGINT"
+  exit 130
+}
+
+on_dashboard_exit() {
+  exit_status=$?
+  echo "Dashboard exiting status=$exit_status reason=$dashboard_exit_reason pid=$$"
+}
+
+trap on_dashboard_term TERM
+trap on_dashboard_hup HUP
+trap on_dashboard_int INT
+trap on_dashboard_exit EXIT

 start_theme_menu_service() {
  if [ "${THEME_MENU_ENABLED:-false}" != true ]; then
@@ -77,14 +111,13 @@ load_theme_runtime_config() {
 }

 init() {
-  if [ -z "$TIMEZONE" ] || [ -z "$REFRESH_SCHEDULE" ]; then
+  if [ -z "$TIMEZONE" ]; then
    echo "Missing required configuration."
    echo "Timezone: ${TIMEZONE:-(not set)}."
-    echo "Schedule: ${REFRESH_SCHEDULE:-(not set)}."
    exit 1
  fi

-  echo "Starting dashboard with $REFRESH_SCHEDULE refresh..."
+  echo "Starting dashboard with refresh_schedule=${REFRESH_SCHEDULE:-disabled} sync_schedule=${REMOTE_SYNC_SCHEDULE:-disabled} scheduled_screen_wake=${SCHEDULED_SCREEN_WAKE_ENABLED}..."
  mkdir -p "$STATE_DIR"

  if [ "$DISABLE_SYSTEM_SUSPEND" = true ]; then
@@ -99,7 +132,7 @@ init() {
  fi

  echo powersave >/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
-  lipc-set-prop com.lab126.powerd preventScreenSaver 1
+  keep_screen_visible
  start_theme_menu_service
  start_touch_home_service
 }
@@ -118,13 +151,20 @@ stop_framework() {
 prepare_sleep() {
  echo "Preparing sleep"

-  /usr/sbin/eips -f -g "$DIR/sleeping.png"
-  background_needs_redraw=true
+  if [ "$SLEEPING_SCREEN_ENABLED" = true ]; then
+    /usr/sbin/eips -f -g "$DIR/sleeping.png"
+    background_needs_redraw=true

-  # Give screen time to refresh
-  sleep 2
+    # 只有真的画了 sleeping.png，才需要额外等待这次整屏刷新落完。
+    sleep 2
+  else
+    # overlay/静默同步模式下，直接保留当前 dashboard 画面直到真正挂起，
+    # 避免 Voyage 把 600x800 的 sleeping.png 只画在左上角，压住日历内容。
+    echo "Sleeping screen disabled, keeping current dashboard visible before suspend."
+  fi

-  # Ensure a full screen refresh is triggered after wake from sleep
+  # 无论休眠前是否显示 sleeping.png，唤醒后的下一次恢复都强制走一次整屏刷新，
+  # 避免长时间 suspend 之后局部刷新把残影继续带到下一轮。
  num_refresh=$FULL_DISPLAY_REFRESH_RATE
 }

@@ -143,6 +183,29 @@ background_refresh_due() {
  last_background_epoch=$(cat "$BACKGROUND_TIMESTAMP_FILE")
  refresh_interval_seconds=$((BACKGROUND_REFRESH_INTERVAL_MINUTES * 60))

+  # 背景里包含当天日历时，不能只按“距离上次刷新过去了多少分钟”判断。
+  # 只要北京时间跨天了，就应该在下一轮调度里至少再拉一次新背景。
+  current_day_id=$(lua - "$current_epoch" "${CLOCK_TIME_OFFSET_MINUTES:-0}" <<'LUA'
+local epoch_seconds = assert(tonumber(arg[1]), "missing epoch seconds")
+local offset_minutes = tonumber(arg[2]) or 0
+local seconds_per_day = 24 * 60 * 60
+local local_seconds = epoch_seconds + offset_minutes * 60
+io.write(math.floor(local_seconds / seconds_per_day))
+LUA
+)
+  last_day_id=$(lua - "$last_background_epoch" "${CLOCK_TIME_OFFSET_MINUTES:-0}" <<'LUA'
+local epoch_seconds = assert(tonumber(arg[1]), "missing epoch seconds")
+local offset_minutes = tonumber(arg[2]) or 0
+local seconds_per_day = 24 * 60 * 60
+local local_seconds = epoch_seconds + offset_minutes * 60
+io.write(math.floor(local_seconds / seconds_per_day))
+LUA
+)
+
+  if [ "$current_day_id" != "$last_day_id" ]; then
+    return 0
+  fi
+
  [ $((current_epoch - last_background_epoch)) -ge "$refresh_interval_seconds" ]
 }

@@ -176,11 +239,161 @@ fetch_background() {
  return 0
 }

+screen_wake_enabled() {
+  # 这里的语义只代表“分钟刷新时是否把屏幕维持在可视态”。
+  # 分钟调度本身是否存在，不能再由这个开关决定。
+  # debug on 的目标就是高频亮屏调试，所以这里直接强制开启可见刷新。
+  if [ "$DISABLE_SYSTEM_SUSPEND" = true ]; then
+    return 0
+  fi
+
+  [ "$SCHEDULED_SCREEN_WAKE_ENABLED" = true ]
+}
+
+refresh_schedule_enabled() {
+  [ -n "${REFRESH_SCHEDULE:-}" ]
+}
+
+keep_screen_visible() {
+  # 可视窗口和 debug on 都需要把 powerd 留在可视态，
+  # 否则刚画完时钟就可能被系统重新收回到睡眠界面。
+  lipc-set-prop com.lab126.powerd preventScreenSaver 1 2>/dev/null || true
+}
+
+allow_screen_sleep() {
+  # debug on 需要常亮；普通低功耗模式下才把屏幕控制权交还给 powerd。
+  if [ "$DISABLE_SYSTEM_SUSPEND" = true ]; then
+    keep_screen_visible
+    return
+  fi
+
+  lipc-set-prop com.lab126.powerd preventScreenSaver 0 2>/dev/null || true
+}
+
+remote_sync_enabled() {
+  [ "$REMOTE_SYNC_ENABLED" = true ]
+}
+
+next_schedule_seconds() {
+  schedule=$1
+  "$DIR/next-wakeup" --schedule="$schedule" --timezone="$TIMEZONE"
+}
+
+compute_next_wakeup() {
+  max_wait=2147483647
+  next_display_secs=$max_wait
+  next_sync_secs=$max_wait
+
+  # debug off 即使不允许自动亮屏，分钟级时钟刷新也必须继续调度。
+  if refresh_schedule_enabled; then
+    next_display_secs=$(next_schedule_seconds "$REFRESH_SCHEDULE")
+  fi
+
+  if remote_sync_enabled && [ -n "${REMOTE_SYNC_SCHEDULE:-}" ]; then
+    next_sync_secs=$(next_schedule_seconds "$REMOTE_SYNC_SCHEDULE")
+  fi
+
+  if [ "$next_display_secs" -eq "$max_wait" ] && [ "$next_sync_secs" -eq "$max_wait" ]; then
+    echo "next_wakeup_reason=display"
+    echo "next_wakeup_secs=3600"
+    return 0
+  fi
+
+  if [ "$next_display_secs" -le "$next_sync_secs" ]; then
+    echo "next_wakeup_reason=display"
+    echo "next_wakeup_secs=$next_display_secs"
+  else
+    echo "next_wakeup_reason=sync"
+    echo "next_wakeup_secs=$next_sync_secs"
+  fi
+}
+
+silent_sync() {
+  sync_failed=false
+
+  # 每天 00:10 的静默唤醒先把全量主题图和主题 JSON 拉到本地，
+  # 这样后续切主题可以完全走本地目录，不依赖当下网络。
+  if ! "$THEME_BACKGROUND_SYNC_CMD"; then
+    echo "Theme background sync failed"
+    sync_failed=true
+  fi
+
+  if background_refresh_due; then
+    if fetch_background; then
+      # 后台静默同步时只更新缓存，不主动点亮 screen。
+      # 下次手动点亮或进入 dashboard 时，再把新背景完整恢复到屏幕上。
+      background_needs_redraw=true
+    else
+      echo "Silent sync background refresh failed"
+      sync_failed=true
+    fi
+  else
+    echo "Silent sync skipped current background refresh"
+  fi
+
+  if [ "$sync_failed" = true ]; then
+    echo "Silent sync failed"
+    return 1
+  fi
+
+  echo "Silent sync completed"
+  return 0
+}
+
+refresh_dashboard_hidden() {
+  if background_refresh_due; then
+    if fetch_background; then
+      # 普通分钟调度在 debug off 下只更新缓存，不主动把新背景刷到屏幕上。
+      background_needs_redraw=true
+    elif [ ! -f "$BACKGROUND_PNG" ]; then
+      echo "No cached background available for hidden refresh."
+      return 1
+    fi
+  fi
+
+  echo "Clock cache refresh without screen wake"
+  "$CLOCK_RENDER_CMD" false false
+}
+
 clock_force_full_refresh() {
  eval "$("$DIR/local/clock-index.sh")"
  [ $((minute % CLOCK_FULL_REFRESH_INTERVAL_MINUTES)) -eq 0 ]
 }

+hold_visible_window_until() {
+  keep_awake_until=$1
+
+  # 只要用户当前正看着 calendar，这段窗口里就继续让分钟刷新走可视路径。
+  keep_screen_visible
+
+  while true; do
+    now=$(now_epoch)
+    if [ "$now" -ge "$keep_awake_until" ]; then
+      break
+    fi
+
+    seconds_until_next_minute=$((60 - (now % 60)))
+    remaining_awake_seconds=$((keep_awake_until - now))
+
+    if [ "$seconds_until_next_minute" -gt "$remaining_awake_seconds" ]; then
+      sleep "$remaining_awake_seconds"
+      break
+    fi
+
+    sleep "$seconds_until_next_minute"
+    refresh_dashboard || true
+  done
+}
+
+mask_system_status_overlay_once() {
+  if [ "$STATUS_MASK_ENABLED" != true ]; then
+    return
+  fi
+
+  fbink -q -V -B WHITE -k \
+    "top=$STATUS_MASK_TOP,left=$STATUS_MASK_LEFT,width=$STATUS_MASK_WIDTH,height=$STATUS_MASK_HEIGHT"
+}
+
 mask_system_status_overlay() {
  if [ "$STATUS_MASK_ENABLED" != true ]; then
    return
@@ -191,8 +404,7 @@ mask_system_status_overlay() {
  # 实测需要延迟后再补盖一次，否则系统可能会在我们第一次覆盖后再重画一遍。
  pass=1
  while [ "$pass" -le "$STATUS_MASK_PASSES" ]; do
-    fbink -q -V -B WHITE -k \
-      "top=$STATUS_MASK_TOP,left=$STATUS_MASK_LEFT,width=$STATUS_MASK_WIDTH,height=$STATUS_MASK_HEIGHT"
+    mask_system_status_overlay_once

    if [ "$pass" -lt "$STATUS_MASK_PASSES" ] && [ "$STATUS_MASK_DELAY_SECONDS" -gt 0 ]; then
      sleep "$STATUS_MASK_DELAY_SECONDS"
@@ -255,6 +467,24 @@ powerd_get_prop() {
  lipc-get-prop com.lab126.powerd "$prop_name" 2>/dev/null || echo "unavailable"
 }

+screen_is_visibly_active() {
+  power_state=$(powerd_get_prop state)
+  case "$power_state" in
+    active|Active)
+      return 0
+      ;;
+  esac
+
+  power_status=$(powerd_get_prop status)
+  case "$power_status" in
+    *"Powerd state: Active"*)
+      return 0
+      ;;
+  esac
+
+  return 1
+}
+
 log_battery_stats() {
  battery_level=$(gasgauge-info -c 2>/dev/null || echo "unknown")
  charging_state=$(powerd_get_prop isCharging)
@@ -285,8 +515,36 @@ rtc_sleep() {
    echo "Skipping system suspend, sleeping for ${duration}s instead"
    sleep "$duration"
  else
-    # shellcheck disable=SC2039
-    [ "$(cat "$RTC")" -eq 0 ] && echo -n "$duration" >"$RTC"
+    # Voyage 这代机器不一定还有旧的 mxc_rtc.0/wakeup_enable 接口；
+    # 当前实机上能稳定看到的是 /sys/class/rtc/rtc0/wakealarm。
+    # 这里先兼容旧接口，找不到时再回退到标准 wakealarm 写法。
+    if [ -f "$RTC_WAKEUP_ENABLE" ]; then
+      current_wakeup_value=$(cat "$RTC_WAKEUP_ENABLE" 2>/dev/null || echo "")
+      if [ -n "$current_wakeup_value" ] && [ "$current_wakeup_value" -eq 0 ] 2>/dev/null; then
+        echo -n "$duration" >"$RTC_WAKEUP_ENABLE"
+      fi
+    else
+      rtc_wakealarm_path=""
+
+      if [ -f /sys/class/rtc/rtc0/wakealarm ]; then
+        rtc_wakealarm_path=/sys/class/rtc/rtc0/wakealarm
+      elif [ -f /sys/class/rtc/rtc1/wakealarm ]; then
+        rtc_wakealarm_path=/sys/class/rtc/rtc1/wakealarm
+      elif [ -f /sys/class/rtc/rtc2/wakealarm ]; then
+        rtc_wakealarm_path=/sys/class/rtc/rtc2/wakealarm
+      fi
+
+      if [ -n "$rtc_wakealarm_path" ]; then
+        wake_epoch=$(( $(now_epoch) + duration ))
+        echo 0 >"$rtc_wakealarm_path" 2>/dev/null || true
+        echo "$wake_epoch" >"$rtc_wakealarm_path"
+      else
+        echo "警告：未找到可用的 RTC 唤醒接口，回退到普通 sleep ${duration}s"
+        sleep "$duration"
+        return
+      fi
+    fi
+
    echo "mem" >/sys/power/state
  fi
 }
@@ -311,6 +569,7 @@ hold_after_manual_wake() {
  sleep_started_at=$2
  sleep_finished_at=$3
  actual_duration=$((sleep_finished_at - sleep_started_at))
+  keep_awake_until=$((sleep_finished_at + MANUAL_WAKE_KEEP_AWAKE_SECONDS))

  if ! manual_wake_detected "$requested_duration" "$actual_duration"; then
    return
@@ -318,17 +577,22 @@ hold_after_manual_wake() {

  echo "Manual wake detected after ${actual_duration}s, keeping awake for ${MANUAL_WAKE_KEEP_AWAKE_SECONDS}s"

+  # 手动唤醒期间，系统可能已经把自己的睡眠/锁屏层画回前台。
+  # 这里先强制要求下一次 refresh_dashboard 完整恢复 calendar 背景，
+  # 不能只补一层时钟 patch。
+  background_needs_redraw=true
+
  # 短按电源键提前唤醒后，先把 dashboard 内容恢复回来，
-  # 再给出一段明确的可交互窗口，避免 2~3 秒内再次休眠。
+  # 再在这段明确的可交互窗口里按分钟补画时钟，避免只刷一次后就停住。
  refresh_dashboard || true
-  sleep "$MANUAL_WAKE_KEEP_AWAKE_SECONDS"
+  hold_visible_window_until "$keep_awake_until"
 }

 main_loop() {
  while true; do
    log_battery_stats

-    next_wakeup_secs=$("$DIR/next-wakeup" --schedule="$REFRESH_SCHEDULE" --timezone="$TIMEZONE")
+    eval "$(compute_next_wakeup)"

    if [ "$next_wakeup_secs" -gt "$SLEEP_SCREEN_INTERVAL" ] && [ "$DISABLE_SYSTEM_SUSPEND" != true ]; then
      action="sleep"
@@ -337,8 +601,12 @@ main_loop() {
      if [ "$next_wakeup_secs" -gt "$SLEEP_SCREEN_INTERVAL" ] && [ "$DISABLE_SYSTEM_SUSPEND" = true ]; then
        echo "Debug mode active, skipping sleeping screen."
      fi
-      action="suspend"
-      refresh_dashboard
+
+      if [ "$next_wakeup_reason" = "sync" ]; then
+        action="silent-sync"
+      else
+        action="suspend"
+      fi
    fi

    actual_sleep_secs=$next_wakeup_secs
@@ -350,6 +618,13 @@ main_loop() {

    # 预留一小段可中断窗口，便于在 Kindle 本机或 SSH 下手动终止进程。
    # 这段时间必须从 rtc_sleep 中扣掉，否则每分钟刷新会长期晚于计划时间。
+    # 普通分钟调度已经改成隐藏刷新，因此 debug off 下应该把屏幕控制权交还给 powerd，
+    # 避免设备每分钟都被重新拉成可视亮屏态。
+    if screen_wake_enabled; then
+      keep_screen_visible
+    else
+      allow_screen_sleep
+    fi
    sleep "$PRE_SLEEP_GRACE_SECONDS"

    echo "Going to $action, next wakeup in ${next_wakeup_secs}s"
@@ -357,9 +632,46 @@ main_loop() {
    sleep_started_at=$(now_epoch)
    rtc_sleep "$actual_sleep_secs"
    sleep_finished_at=$(now_epoch)
-    hold_after_manual_wake "$actual_sleep_secs" "$sleep_started_at" "$sleep_finished_at"
+
+    # Voyage 在 rtc 唤醒刚回来的瞬间，右上角系统状态栏可能会先闪回前台。
+    # 只要系统已经把屏幕拉成可视态，就先立即补一层白色遮罩，
+    # 再进入后面的手动唤醒判断和 dashboard 刷新，尽量缩短这段闪现时间。
+    if screen_is_visibly_active; then
+      mask_system_status_overlay_once
+    fi
+
+    if manual_wake_detected "$actual_sleep_secs" "$((sleep_finished_at - sleep_started_at))"; then
+      hold_after_manual_wake "$actual_sleep_secs" "$sleep_started_at" "$sleep_finished_at"
+      continue
+    fi
+
+    if [ "$next_wakeup_reason" = "sync" ]; then
+      silent_sync || true
+    else
+      if screen_wake_enabled; then
+        refresh_dashboard || true
+      elif screen_is_visibly_active; then
+        # Voyage 在当前 overlay + RTC suspend 架构下，
+        # 普通分钟唤醒有时会被系统自己拉成可视态。
+        # 既然用户已经看得到这次唤醒，就顺手把时钟补到当前分钟，
+        # 避免出现“亮灯了，但表盘还是旧时间”的错觉。
+        refresh_dashboard || true
+      else
+        refresh_dashboard_hidden || true
+      fi
+    fi
  done
 }

 init
+printf '%s\n' "$$" >"$PID_FILE"
+echo "Dashboard boot pid=$$ at $(date '+%Y-%m-%d %H:%M:%S %Z')"
+refresh_dashboard || true
+
+# 从 KUAL 进入 dashboard 或主题切换后回到 calendar，本身就是一次显式用户操作。
+# debug off 下也应该给同样的 5 分钟可视窗口，让用户回来后看到会继续走动的时钟。
+if [ "$DISABLE_SYSTEM_SUSPEND" != true ]; then
+  hold_visible_window_until $(( $(now_epoch) + MANUAL_WAKE_KEEP_AWAKE_SECONDS ))
+fi
+
 main_loop
--- a/dash/staging/post-jailbreak-root/dashboard/launch-theme-from-kual.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/launch-theme-from-kual.sh
@@ -2,19 +2,99 @@
 set -eu

 DIR="$(dirname "$0")"
+ENV_FILE="$DIR/local/env.sh"
 SWITCH_THEME_CMD="$DIR/switch-theme.sh"
-LAUNCH_FROM_KUAL_CMD="$DIR/launch-from-kual.sh"
+START_DASHBOARD_CMD="$DIR/start.sh"
+LOG_FILE="$DIR/logs/kual-theme-launch.log"

 requested_theme_id=${1:?"usage: launch-theme-from-kual.sh <theme-id> [orientation]"}
 requested_orientation=${2:-}

-# KUAL 里的主题入口先切主题，再复用现有的 launch-from-kual 启动链。
-# 这样可以保留当前已经收敛过的 KUAL 退出与 detached 启动逻辑，
-# 同时把“选主题”前移到进入 dashboard 之前。
-if [ -n "$requested_orientation" ]; then
-  "$SWITCH_THEME_CMD" "$requested_theme_id" "$requested_orientation"
-else
-  "$SWITCH_THEME_CMD" "$requested_theme_id"
-fi
+# shellcheck disable=SC1090
+[ -f "$ENV_FILE" ] && . "$ENV_FILE"

-exec "$LAUNCH_FROM_KUAL_CMD"
+KUAL_QUIT_GRACE_SECONDS="${KUAL_QUIT_GRACE_SECONDS:-0}"
+KUAL_APP_ID="${KUAL_APP_ID:-app://com.mobileread.ixtab.kindlelauncher}"
+
+# KUAL 菜单项本身应该尽快返回，让 KUAL 自己先退回首页。
+# 真正的“切主题 + 启动 dashboard”放到独立 session 里继续跑，
+# 避免动作链被 KUAL 退出过程提前打断。
+# 这里直接起 start.sh，不再额外绕一层 launch-from-kual.sh，
+# 尽量减少首页闪出的可见窗口。
+mkdir -p "$(dirname "$LOG_FILE")"
+
+if command -v setsid >/dev/null 2>&1; then
+  nohup setsid /bin/sh -c '
+    theme_id=$1
+    theme_orientation=$2
+    switch_cmd=$3
+    start_cmd=$4
+    log_file=$5
+    target_dir=$6
+    kual_app_id=$7
+    quit_grace=$8
+
+    printf "%s launch-theme worker start theme=%s orientation=%s\n" "$(date 2>/dev/null || true)" "$theme_id" "${theme_orientation:-default}" >>"$log_file"
+
+    # 旧 dashboard 还活着时，会继续按旧状态补画时钟，导致画面叠层。
+    # 这里在真正切主题前先清掉旧实例，确保后面只剩一条主循环。
+    pkill -f "$target_dir/dash.sh" 2>/dev/null || true
+    pkill -f "$target_dir/local/theme-menu-service.sh" 2>/dev/null || true
+    pkill -f "$target_dir/local/touch-home-service.sh" 2>/dev/null || true
+
+    # 主题链路也沿用 KUAL 的正常退出路径，避免我们刚把 calendar 画出来，
+    # KUAL 又把前台切回首页。
+    if command -v lipc-set-prop >/dev/null 2>&1; then
+      lipc-set-prop com.lab126.appmgrd stop "$kual_app_id" >/dev/null 2>&1 || true
+    fi
+
+    if [ "$quit_grace" -gt 0 ] 2>/dev/null; then
+      sleep "$quit_grace"
+    fi
+
+    if [ -n "$theme_orientation" ]; then
+      "$switch_cmd" "$theme_id" "$theme_orientation" >>"$log_file" 2>&1
+    else
+      "$switch_cmd" "$theme_id" >>"$log_file" 2>&1
+    fi
+
+    exec "$start_cmd" >>"$log_file" 2>&1
+  ' sh "$requested_theme_id" "$requested_orientation" "$SWITCH_THEME_CMD" "$START_DASHBOARD_CMD" "$LOG_FILE" "$DIR" "$KUAL_APP_ID" "$KUAL_QUIT_GRACE_SECONDS" >/dev/null 2>&1 &
+else
+  nohup /bin/sh -c '
+    theme_id=$1
+    theme_orientation=$2
+    switch_cmd=$3
+    start_cmd=$4
+    log_file=$5
+    target_dir=$6
+    kual_app_id=$7
+    quit_grace=$8
+
+    printf "%s launch-theme worker start theme=%s orientation=%s\n" "$(date 2>/dev/null || true)" "$theme_id" "${theme_orientation:-default}" >>"$log_file"
+
+    # 旧 dashboard 还活着时，会继续按旧状态补画时钟，导致画面叠层。
+    # 这里在真正切主题前先清掉旧实例，确保后面只剩一条主循环。
+    pkill -f "$target_dir/dash.sh" 2>/dev/null || true
+    pkill -f "$target_dir/local/theme-menu-service.sh" 2>/dev/null || true
+    pkill -f "$target_dir/local/touch-home-service.sh" 2>/dev/null || true
+
+    # 主题链路也沿用 KUAL 的正常退出路径，避免我们刚把 calendar 画出来，
+    # KUAL 又把前台切回首页。
+    if command -v lipc-set-prop >/dev/null 2>&1; then
+      lipc-set-prop com.lab126.appmgrd stop "$kual_app_id" >/dev/null 2>&1 || true
+    fi
+
+    if [ "$quit_grace" -gt 0 ] 2>/dev/null; then
+      sleep "$quit_grace"
+    fi
+
+    if [ -n "$theme_orientation" ]; then
+      "$switch_cmd" "$theme_id" "$theme_orientation" >>"$log_file" 2>&1
+    else
+      "$switch_cmd" "$theme_id" >>"$log_file" 2>&1
+    fi
+
+    exec "$start_cmd" >>"$log_file" 2>&1
+  ' sh "$requested_theme_id" "$requested_orientation" "$SWITCH_THEME_CMD" "$START_DASHBOARD_CMD" "$LOG_FILE" "$DIR" "$KUAL_APP_ID" "$KUAL_QUIT_GRACE_SECONDS" >/dev/null 2>&1 &
+fi
--- a/dash/staging/post-jailbreak-root/dashboard/local/env.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/local/env.sh
@@ -2,8 +2,18 @@

 # Export environment variables here
 export WIFI_TEST_IP=${WIFI_TEST_IP:-1.1.1.1}
-# 测试配置：全天每分钟刷新一次，便于验证图片拉取与屏幕刷新是否正常。
+# 设备侧时钟刷新节奏。
+# 当前默认每分钟刷新一次；debug on 与 debug off 都走这条分钟调度。
 export REFRESH_SCHEDULE=${REFRESH_SCHEDULE:-"* * * * *"}
+# 是否允许按 REFRESH_SCHEDULE 自动点亮 screen。
+# 默认关闭；debug off 下分钟刷新仍会执行，但不会因为调度本身把屏幕维持在可视态。
+# 只有 debug on，或手动短按 power 进入的 5 分钟窗口，才把屏幕留在可视态。
+export SCHEDULED_SCREEN_WAKE_ENABLED=${SCHEDULED_SCREEN_WAKE_ENABLED:-false}
+# 静默远端同步的唤醒节奏。
+# 默认每天凌晨 00:10 唤醒一次，用来拉当天最新背景、主题 JSON 和全量主题图片，
+# 但不主动点亮 screen。
+export REMOTE_SYNC_SCHEDULE=${REMOTE_SYNC_SCHEDULE:-"10 0 * * *"}
+export REMOTE_SYNC_ENABLED=${REMOTE_SYNC_ENABLED:-true}
 # 调度计算依赖 next-wakeup 这个 Rust 程序，它要求使用 IANA 时区名。
 # 这里必须保留 Asia/Shanghai，才能正确计算下一次唤醒时间。
 export TIMEZONE=${TIMEZONE:-"Asia/Shanghai"}
@@ -16,7 +26,16 @@ export THEMES_INDEX_REFRESH_INTERVAL_MINUTES=${THEMES_INDEX_REFRESH_INTERVAL_MIN
 export THEME_CONFIG_REFRESH_INTERVAL_MINUTES=${THEME_CONFIG_REFRESH_INTERVAL_MINUTES:-1440}
 export THEME_ID=${THEME_ID:-"default"}
 export ORIENTATION=${ORIENTATION:-"portrait"}
-export BACKGROUND_REFRESH_INTERVAL_MINUTES=${BACKGROUND_REFRESH_INTERVAL_MINUTES:-120}
+export WEATHER_USE_KINDLE_LOCATION=${WEATHER_USE_KINDLE_LOCATION:-true}
+export LOCATION_GEOIP_URL=${LOCATION_GEOIP_URL:-"https://ipwho.is/"}
+export LOCATION_REFRESH_INTERVAL_MINUTES=${LOCATION_REFRESH_INTERVAL_MINUTES:-720}
+export LOCATION_FALLBACK_CITY=${LOCATION_FALLBACK_CITY:-"杭州"}
+export LOCATION_FALLBACK_LAT=${LOCATION_FALLBACK_LAT:-30.274084}
+export LOCATION_FALLBACK_LON=${LOCATION_FALLBACK_LON:-120.155070}
+export LOCATION_FALLBACK_TIMEZONE=${LOCATION_FALLBACK_TIMEZONE:-"Asia/Shanghai"}
+# 日历背景在跨天时必须至少更新一次；平时不需要高频拉图。
+# 这里默认按 24 小时做兜底，同时 dash.sh 里还会在北京时间跨天后强制补一次刷新。
+export BACKGROUND_REFRESH_INTERVAL_MINUTES=${BACKGROUND_REFRESH_INTERVAL_MINUTES:-1440}
 export CLOCK_REGION_X=${CLOCK_REGION_X:-347}
 export CLOCK_REGION_Y=${CLOCK_REGION_Y:-55}
 export CLOCK_REGION_WIDTH=${CLOCK_REGION_WIDTH:-220}
@@ -44,18 +63,22 @@ export CLOCK_CENTER_RADIUS=${CLOCK_CENTER_RADIUS:-7}
 # 这段时间会从真正的休眠时长里扣掉，避免分钟刷新慢一拍。
 export PRE_SLEEP_GRACE_SECONDS=${PRE_SLEEP_GRACE_SECONDS:-10}
 # 手动短按电源键把 Kindle 提前唤醒后，额外保持前台显示的秒数。
-# 这样用户有足够时间看屏、切主题或继续交互，而不会立刻再次休眠。
-export MANUAL_WAKE_KEEP_AWAKE_SECONDS=${MANUAL_WAKE_KEEP_AWAKE_SECONDS:-60}
+# debug off 下这里固定为 300 秒，也就是按 power 之后保持 5 分钟可视窗口。
+export MANUAL_WAKE_KEEP_AWAKE_SECONDS=${MANUAL_WAKE_KEEP_AWAKE_SECONDS:-300}
 # 如果实际休眠时长比计划值至少少这么多秒，就认为是被用户手动提前唤醒。
 export MANUAL_WAKE_EARLY_TOLERANCE_SECONDS=${MANUAL_WAKE_EARLY_TOLERANCE_SECONDS:-5}
+# 默认 overlay/静默同步模式下，不再提前显示 sleeping.png。
+# Voyage 上这张图只有 600x800，提前显示时会只占左上角一块并盖住当前 calendar。
+# 如需恢复旧的“休眠前先显示提示图”行为，可手动改回 true。
+export SLEEPING_SCREEN_ENABLED=${SLEEPING_SCREEN_ENABLED:-false}

-# Voyage 顶部状态栏遮罩：用于压住系统偶尔重画出来的时间、Wi-Fi、电池图标。
-# 当前坐标只覆盖页面顶部空白带，不会擦到天气卡上边框。
+# Voyage 顶部状态栏遮罩：用于压住系统偶尔重画出来的时间、Wi‑Fi、电池图标。
+# 遮罩只覆盖右上角状态区，避免继续压住 calendar 自己的顶部内容。
 export STATUS_MASK_ENABLED=${STATUS_MASK_ENABLED:-true}
-export STATUS_MASK_LEFT=${STATUS_MASK_LEFT:-700}
+export STATUS_MASK_LEFT=${STATUS_MASK_LEFT:-600}
 export STATUS_MASK_TOP=${STATUS_MASK_TOP:-0}
-export STATUS_MASK_WIDTH=${STATUS_MASK_WIDTH:-372}
-export STATUS_MASK_HEIGHT=${STATUS_MASK_HEIGHT:-24}
+export STATUS_MASK_WIDTH=${STATUS_MASK_WIDTH:-360}
+export STATUS_MASK_HEIGHT=${STATUS_MASK_HEIGHT:-48}
 export STATUS_MASK_PASSES=${STATUS_MASK_PASSES:-3}
 export STATUS_MASK_DELAY_SECONDS=${STATUS_MASK_DELAY_SECONDS:-1}

--- a/dash/staging/post-jailbreak-root/dashboard/local/fetch-dashboard.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/local/fetch-dashboard.sh
@@ -6,6 +6,13 @@ output_path=${1:?"missing output path"}
 DIR="$(CDPATH= cd -- "$(dirname "$0")" && pwd)"
 ENV_FILE="$DIR/env.sh"
 THEME_RUNTIME_ENV_FILE="$DIR/state/theme-runtime.env"
+local_only=false
+
+if [ "${1:-}" = "--local-only" ]; then
+  local_only=true
+  shift
+  output_path=${1:?"missing output path"}
+fi

 # fetch-dashboard 既会被 dash.sh 调，也会被 switch-theme.sh 单独调。
 # 因此这里每次都重新读取一次运行时主题配置，确保拿到当前背景地址。
@@ -16,17 +23,71 @@ THEME_RUNTIME_ENV_FILE="$DIR/state/theme-runtime.env"

 background_path=${BACKGROUND_PATH:-""}
 background_url=${BACKGROUND_URL:-"https://shell.biboer.cn:20001/kindlebg.png"}
+weather_use_kindle_location=${WEATHER_USE_KINDLE_LOCATION:-false}
 local_background_path=""

 if [ -n "$background_path" ]; then
  local_background_path="$DIR/../$background_path"
 fi

-# 主题背景如果已经随本地部署同步到 Kindle，优先直接拷贝本地文件，
-# 这样切换主题时不依赖远端图片资源是否已经发布完成。
-if [ -n "$local_background_path" ] && [ -f "$local_background_path" ]; then
-  cp "$local_background_path" "$output_path"
+copy_local_background() {
+  if [ -n "$local_background_path" ] && [ -f "$local_background_path" ]; then
+    cp "$local_background_path" "$output_path"
+    return 0
+  fi
+
+  echo "本地主题包缺少背景图：${background_path:-unknown}" >&2
+  return 1
+}
+
+is_valid_png() {
+  candidate_path=$1
+
+  if [ ! -f "$candidate_path" ]; then
+    return 1
+  fi
+
+  # Kindle 端已经确认有 file 命令；如果将来某台机器没有，再回退到 PNG 签名检查。
+  if command -v file >/dev/null 2>&1; then
+    if file "$candidate_path" 2>/dev/null | grep -q "PNG image data"; then
+      return 0
+    fi
+  fi
+
+  signature=$(dd if="$candidate_path" bs=8 count=1 2>/dev/null | od -An -tx1 | tr -d ' \n')
+  [ "$signature" = "89504e470d0a1a0a" ]
+}
+
+if [ "$local_only" = true ]; then
+  # KUAL 触发的切主题链路必须尽快返回，所以这里严格只读本地素材。
+  # 如果本地包缺图，直接失败，让问题暴露出来，而不是把联网等待塞进交互里。
+  copy_local_background
+  exit $?
+fi
+
+if [ "$weather_use_kindle_location" = true ] && copy_local_background; then
  exit 0
 fi

-"$DIR/../xh" -d -q -o "$output_path" get "$background_url"
+# 定时背景刷新和启动阶段走这里时，优先尝试拉远端最新背景。
+# 如果远端暂时失败，再回退到本地包，至少保证 dashboard 还能继续显示。
+remote_tmp_path="${output_path}.remote.$$"
+rm -f "$remote_tmp_path"
+
+if "$DIR/../xh" -d -q -o "$remote_tmp_path" get "$background_url"; then
+  if is_valid_png "$remote_tmp_path"; then
+    mv "$remote_tmp_path" "$output_path"
+    exit 0
+  fi
+
+  echo "远端背景不是有效 PNG，忽略本次响应并回退本地主题包：$background_url" >&2
+fi
+
+rm -f "$remote_tmp_path"
+
+if copy_local_background; then
+  exit 0
+fi
+
+echo "远端背景拉取失败，且本地主题包也缺少背景图：${background_path:-unknown}" >&2
+exit 1
--- a/dash/staging/post-jailbreak-root/dashboard/local/location-env.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/local/location-env.sh
@@ -0,0 +1,62 @@
+#!/usr/bin/env sh
+set -eu
+
+DIR="$(CDPATH= cd -- "$(dirname "$0")" && pwd)"
+ENV_FILE="$DIR/env.sh"
+STATE_DIR="$DIR/state"
+LOCATION_CACHE_FILE="$STATE_DIR/location.env"
+LOCATION_SYNC_CMD="$DIR/location-sync.sh"
+refresh_if_needed=false
+force_refresh=false
+
+while [ "$#" -gt 0 ]; do
+  case "$1" in
+    --refresh-if-needed)
+      refresh_if_needed=true
+      ;;
+    --force-refresh)
+      force_refresh=true
+      ;;
+    *)
+      echo "Unknown argument: $1" >&2
+      exit 1
+      ;;
+  esac
+  shift
+done
+
+[ -f "$ENV_FILE" ] && . "$ENV_FILE"
+
+if [ "$force_refresh" = true ]; then
+  "$LOCATION_SYNC_CMD" --force >/dev/null 2>&1 || true
+elif [ "$refresh_if_needed" = true ]; then
+  "$LOCATION_SYNC_CMD" >/dev/null 2>&1 || true
+fi
+
+location_source="fallback"
+location_city=${LOCATION_FALLBACK_CITY:-杭州}
+location_lat=${LOCATION_FALLBACK_LAT:-30.274084}
+location_lon=${LOCATION_FALLBACK_LON:-120.155070}
+location_timezone=${LOCATION_FALLBACK_TIMEZONE:-Asia/Shanghai}
+
+if [ -f "$LOCATION_CACHE_FILE" ]; then
+  . "$LOCATION_CACHE_FILE"
+
+  if [ -n "${LOCATION_LAT:-}" ] && [ -n "${LOCATION_LON:-}" ]; then
+    location_source=${LOCATION_SOURCE:-geoip}
+    location_city=${LOCATION_CITY:-$location_city}
+    location_lat=${LOCATION_LAT}
+    location_lon=${LOCATION_LON}
+    location_timezone=${LOCATION_TIMEZONE:-$location_timezone}
+  fi
+fi
+
+quote_for_shell() {
+  printf "%s" "$1" | sed "s/'/'\\\\''/g"
+}
+
+printf "export LOCATION_SOURCE='%s'\n" "$(quote_for_shell "$location_source")"
+printf "export LOCATION_CITY='%s'\n" "$(quote_for_shell "$location_city")"
+printf "export LOCATION_LAT='%s'\n" "$(quote_for_shell "$location_lat")"
+printf "export LOCATION_LON='%s'\n" "$(quote_for_shell "$location_lon")"
+printf "export LOCATION_TIMEZONE='%s'\n" "$(quote_for_shell "$location_timezone")"
--- a/dash/staging/post-jailbreak-root/dashboard/local/location-sync.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/local/location-sync.sh
@@ -0,0 +1,163 @@
+#!/usr/bin/env sh
+set -eu
+
+DIR="$(CDPATH= cd -- "$(dirname "$0")" && pwd)"
+ENV_FILE="$DIR/env.sh"
+STATE_DIR="$DIR/state"
+LOCATION_CACHE_FILE="$STATE_DIR/location.env"
+FETCH_CMD="$DIR/../xh"
+force_refresh=false
+
+while [ "$#" -gt 0 ]; do
+  case "$1" in
+    --force)
+      force_refresh=true
+      ;;
+    *)
+      echo "Unknown argument: $1" >&2
+      exit 1
+      ;;
+  esac
+  shift
+done
+
+[ -f "$ENV_FILE" ] && . "$ENV_FILE"
+
+mkdir -p "$STATE_DIR"
+
+current_epoch() {
+  date '+%s'
+}
+
+cache_refresh_due() {
+  if [ ! -f "$LOCATION_CACHE_FILE" ]; then
+    return 0
+  fi
+
+  last_epoch=$(awk -F= '/^export LOCATION_UPDATED_AT_EPOCH=/{gsub("'"'"'", "", $2); print $2; exit}' "$LOCATION_CACHE_FILE" 2>/dev/null || true)
+  if [ -z "$last_epoch" ]; then
+    return 0
+  fi
+
+  now_epoch=$(current_epoch)
+  [ $((now_epoch - last_epoch)) -ge $((LOCATION_REFRESH_INTERVAL_MINUTES * 60)) ]
+}
+
+extract_geoip_fields() {
+  payload_path=$1
+
+  lua - "$payload_path" <<'LUA'
+local path = arg[1]
+local file = io.open(path, "r")
+if not file then
+  os.exit(1)
+end
+
+local data = file:read("*a")
+file:close()
+
+if data:match('"success"%s*:%s*false') then
+  os.exit(1)
+end
+
+local function match_string(source, pattern)
+  local value = source:match(pattern)
+  if not value then
+    return nil
+  end
+
+  return value
+    :gsub('\\"', '"')
+    :gsub("\\\\", "\\")
+end
+
+local city = match_string(data, '"city"%s*:%s*"(.-)"')
+local latitude = data:match('"latitude"%s*:%s*(-?%d+%.?%d*)')
+local longitude = data:match('"longitude"%s*:%s*(-?%d+%.?%d*)')
+local timezone_block = data:match('"timezone"%s*:%s*(%b{})')
+local timezone = timezone_block and match_string(timezone_block, '"id"%s*:%s*"(.-)"') or nil
+
+if not latitude or not longitude then
+  os.exit(1)
+end
+
+print("CITY=" .. (city or "当前位置"))
+print("LAT=" .. latitude)
+print("LON=" .. longitude)
+print("TIMEZONE=" .. (timezone or "Asia/Shanghai"))
+LUA
+}
+
+quote_for_shell() {
+  printf "%s" "$1" | sed "s/'/'\\\\''/g"
+}
+
+if [ "$force_refresh" != true ] && ! cache_refresh_due; then
+  exit 0
+fi
+
+if [ ! -x "$FETCH_CMD" ]; then
+  echo "Location sync failed: xh is unavailable" >&2
+  exit 1
+fi
+
+payload_path="$STATE_DIR/location-response.$$"
+rm -f "$payload_path"
+
+if ! "$FETCH_CMD" -d -q -o "$payload_path" get "$LOCATION_GEOIP_URL"; then
+  rm -f "$payload_path"
+  echo "Location sync failed: GeoIP request failed" >&2
+  exit 1
+fi
+
+location_city=""
+location_lat=""
+location_lon=""
+location_timezone=""
+
+if ! parsed_output=$(extract_geoip_fields "$payload_path"); then
+  rm -f "$payload_path"
+  echo "Location sync failed: unable to parse GeoIP payload" >&2
+  exit 1
+fi
+
+rm -f "$payload_path"
+
+while IFS='=' read -r key value; do
+  case "$key" in
+    CITY)
+      location_city=$value
+      ;;
+    LAT)
+      location_lat=$value
+      ;;
+    LON)
+      location_lon=$value
+      ;;
+    TIMEZONE)
+      location_timezone=$value
+      ;;
+  esac
+done <<EOF
+$parsed_output
+EOF
+
+if [ -z "$location_lat" ] || [ -z "$location_lon" ]; then
+  echo "Location sync failed: GeoIP payload missing coordinates" >&2
+  exit 1
+fi
+
+now_epoch=$(current_epoch)
+now_iso=$(date '+%Y-%m-%dT%H:%M:%S%z' | sed 's/\(..\)$/:\1/')
+
+cat >"$LOCATION_CACHE_FILE" <<EOF
+export LOCATION_SOURCE='geoip'
+export LOCATION_CITY='$(quote_for_shell "$location_city")'
+export LOCATION_LAT='$(quote_for_shell "$location_lat")'
+export LOCATION_LON='$(quote_for_shell "$location_lon")'
+export LOCATION_TIMEZONE='$(quote_for_shell "$location_timezone")'
+export LOCATION_UPDATED_AT='$(quote_for_shell "$now_iso")'
+export LOCATION_UPDATED_AT_EPOCH='$(quote_for_shell "$now_epoch")'
+EOF
+
+printf 'Location synced: %s (%s,%s)\n' "$location_city" "$location_lat" "$location_lon"
--- a/dash/staging/post-jailbreak-root/dashboard/local/render-clock.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/local/render-clock.sh
@@ -36,6 +36,7 @@ clock_minute_thickness=${CLOCK_MINUTE_THICKNESS:-5}
 clock_center_radius=${CLOCK_CENTER_RADIUS:-7}
 clock_rotation_degrees=${CLOCK_ROTATION_DEGREES:-0}
 force_full_refresh=${1:-false}
+apply_to_screen=${2:-true}
 output_path="$DIR/state/clock-render.pgm"

 eval "$("$DIR/clock-index.sh")"
@@ -65,6 +66,10 @@ lua "$DIR/render-clock.lua" \
  "$clock_center_radius" \
  "$clock_rotation_degrees"

+if [ "$apply_to_screen" != true ]; then
+  exit 0
+fi
+
 if [ "$force_full_refresh" = true ]; then
  # Kindle Voyage 当前这条链路里，fbink 默认会叠加 viewport 修正，
  # 导致图像在屏幕上出现双重偏移。这里强制关闭 viewport 修正，
--- a/dash/staging/post-jailbreak-root/dashboard/local/sync-theme-backgrounds.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/local/sync-theme-backgrounds.sh
@@ -0,0 +1,149 @@
+#!/usr/bin/env sh
+set -eu
+
+DIR="$(CDPATH= cd -- "$(dirname "$0")" && pwd)"
+ENV_FILE="$DIR/env.sh"
+STATE_DIR="$DIR/state"
+THEME_JSON_LUA="$DIR/theme-json.lua"
+FETCH_CMD="$DIR/../xh"
+WAIT_FOR_WIFI_CMD="$DIR/../wait-for-wifi.sh"
+LOCAL_THEMES_INDEX="$DIR/../themes.json"
+LOCAL_THEMES_DIR="$DIR/../themes"
+LOCAL_BACKGROUND_DIR="$DIR/../kindle-backgrounds"
+THEMES_INDEX_CACHE="$STATE_DIR/themes.json"
+EXPECTED_THEMES_FILE="$STATE_DIR/expected-theme-configs.txt"
+EXPECTED_BACKGROUNDS_FILE="$STATE_DIR/expected-theme-backgrounds.txt"
+
+# shellcheck disable=SC1090
+[ -f "$ENV_FILE" ] && . "$ENV_FILE"
+
+THEMES_INDEX_URL=${THEMES_INDEX_URL:-"https://shell.biboer.cn:20001/themes.json"}
+
+mkdir -p "$STATE_DIR" "$LOCAL_THEMES_DIR" "$LOCAL_BACKGROUND_DIR"
+
+fetch_to_path() {
+  url=$1
+  output_path=$2
+  tmp_path="${output_path}.tmp.$$"
+
+  rm -f "$tmp_path"
+
+  if ! "$FETCH_CMD" -d -q -o "$tmp_path" get "$url"; then
+    rm -f "$tmp_path"
+    return 1
+  fi
+
+  mv "$tmp_path" "$output_path"
+  return 0
+}
+
+is_valid_png() {
+  candidate_path=$1
+
+  if [ ! -f "$candidate_path" ]; then
+    return 1
+  fi
+
+  if command -v file >/dev/null 2>&1; then
+    if file "$candidate_path" 2>/dev/null | grep -q "PNG image data"; then
+      return 0
+    fi
+  fi
+
+  signature=$(dd if="$candidate_path" bs=8 count=1 2>/dev/null | od -An -tx1 | tr -d ' \n')
+  [ "$signature" = "89504e470d0a1a0a" ]
+}
+
+fetch_png_to_path() {
+  url=$1
+  output_path=$2
+  tmp_path="${output_path}.tmp.$$"
+
+  rm -f "$tmp_path"
+
+  if ! "$FETCH_CMD" -d -q -o "$tmp_path" get "$url"; then
+    rm -f "$tmp_path"
+    return 1
+  fi
+
+  if ! is_valid_png "$tmp_path"; then
+    rm -f "$tmp_path"
+    return 1
+  fi
+
+  mv "$tmp_path" "$output_path"
+  return 0
+}
+
+cleanup_stale_files() {
+  target_dir=$1
+  expected_file=$2
+  pattern=$3
+
+  for existing_path in "$target_dir"/$pattern; do
+    [ -e "$existing_path" ] || continue
+
+    existing_name=$(basename "$existing_path")
+    if ! grep -Fqx "$existing_name" "$expected_file"; then
+      rm -f "$existing_path"
+    fi
+  done
+}
+
+echo "Syncing all theme backgrounds from remote"
+"$WAIT_FOR_WIFI_CMD" "$WIFI_TEST_IP"
+
+if ! fetch_to_path "$THEMES_INDEX_URL" "$THEMES_INDEX_CACHE"; then
+  echo "Themes index fetch failed: $THEMES_INDEX_URL" >&2
+  exit 1
+fi
+
+cp "$THEMES_INDEX_CACHE" "$LOCAL_THEMES_INDEX"
+: >"$EXPECTED_THEMES_FILE"
+: >"$EXPECTED_BACKGROUNDS_FILE"
+
+theme_configs=$(lua "$THEME_JSON_LUA" list-configs "$THEMES_INDEX_CACHE")
+
+if [ -z "$theme_configs" ]; then
+  echo "Themes index is empty." >&2
+  exit 1
+fi
+
+printf '%s\n' "$theme_configs" | while IFS="$(printf '\t')" read -r theme_id config_url; do
+  [ -n "$theme_id" ] || continue
+  [ -n "$config_url" ] || continue
+
+  local_theme_config="$LOCAL_THEMES_DIR/$theme_id.json"
+  if ! fetch_to_path "$config_url" "$local_theme_config"; then
+    echo "Theme config fetch failed: $theme_id $config_url" >&2
+    exit 1
+  fi
+
+  printf '%s\n' "$(basename "$local_theme_config")" >>"$EXPECTED_THEMES_FILE"
+
+  theme_backgrounds=$(lua "$THEME_JSON_LUA" list-backgrounds "$local_theme_config")
+  if [ -z "$theme_backgrounds" ]; then
+    echo "Theme config has no backgrounds: $theme_id" >&2
+    exit 1
+  fi
+
+  printf '%s\n' "$theme_backgrounds" | while IFS="$(printf '\t')" read -r orientation background_path background_url; do
+    [ -n "$background_path" ] || continue
+    [ -n "$background_url" ] || continue
+
+    background_file=$(basename "$background_path")
+    local_background_path="$LOCAL_BACKGROUND_DIR/$background_file"
+
+    if ! fetch_png_to_path "$background_url" "$local_background_path"; then
+      echo "Theme background fetch failed: $theme_id $orientation $background_url" >&2
+      exit 1
+    fi
+
+    printf '%s\n' "$background_file" >>"$EXPECTED_BACKGROUNDS_FILE"
+  done
+done
+
+cleanup_stale_files "$LOCAL_THEMES_DIR" "$EXPECTED_THEMES_FILE" "*.json"
+cleanup_stale_files "$LOCAL_BACKGROUND_DIR" "$EXPECTED_BACKGROUNDS_FILE" "*.png"
+
+echo "Theme background sync completed"
--- a/dash/staging/post-jailbreak-root/dashboard/local/theme-json.lua
+++ b/dash/staging/post-jailbreak-root/dashboard/local/theme-json.lua
@@ -234,6 +234,56 @@ local function first_orientation(theme, fallback)
  return (theme.orientations or {})[1] or fallback
 end

+local function orientation_label(orientation)
+  if orientation == "landscape" then
+    return "横屏"
+  end
+
+  if orientation == "portrait" then
+    return "竖屏"
+  end
+
+  return orientation
+end
+
+local function ordered_variant_keys(variants)
+  local keys = {}
+  local seen = {}
+  local preferred = {"portrait", "landscape"}
+
+  for _, key in ipairs(preferred) do
+    if variants[key] ~= nil then
+      keys[#keys + 1] = key
+      seen[key] = true
+    end
+  end
+
+  for key, _ in pairs(variants) do
+    if not seen[key] then
+      keys[#keys + 1] = key
+    end
+  end
+
+  table.sort(keys, function(left, right)
+    return left < right
+  end)
+
+  for index = #preferred, 1, -1 do
+    local key = preferred[index]
+    if seen[key] then
+      for key_index, value in ipairs(keys) do
+        if value == key then
+          table.remove(keys, key_index)
+          table.insert(keys, 1, key)
+          break
+        end
+      end
+    end
+  end
+
+  return keys
+end
+
 local function shell_quote(value)
  return "'" .. tostring(value):gsub("'", [['"'"']]) .. "'"
 end
@@ -330,11 +380,45 @@ end
 if command == "list" then
  local index_path = assert(arg[2], "missing themes index path")
  local index_data = decode(read_file(index_path))
+  local orientation_order = {"landscape", "portrait"}

  for _, theme in ipairs(index_data.themes or {}) do
-    io.write(theme.id or "", "\t")
-    io.write(theme.label or theme.id or "", "\t")
-    io.write(table.concat(theme.orientations or {}, ","), "\n")
+    for _, orientation in ipairs(orientation_order) do
+      if orientation_exists(theme, orientation) then
+        io.write(theme.id or "", "\t")
+        io.write((theme.id or "") .. "-" .. orientation_label(orientation), "\t")
+        io.write(orientation, "\n")
+      end
+    end
+  end
+
+  return
+end
+
+if command == "list-configs" then
+  local index_path = assert(arg[2], "missing themes index path")
+  local index_data = decode(read_file(index_path))
+
+  for _, theme in ipairs(index_data.themes or {}) do
+    if theme.id ~= nil and theme.configUrl ~= nil then
+      io.write(theme.id, "\t", theme.configUrl, "\n")
+    end
+  end
+
+  return
+end
+
+if command == "list-backgrounds" then
+  local theme_path = assert(arg[2], "missing theme config path")
+  local theme_data = decode(read_file(theme_path))
+  local variants = assert(theme_data.variants, "missing variants")
+
+  for _, orientation in ipairs(ordered_variant_keys(variants)) do
+    local variant = variants[orientation]
+    local background = variant.background or {}
+    if background.path ~= nil and background.url ~= nil then
+      io.write(orientation, "\t", background.path, "\t", background.url, "\n")
+    end
  end

  return
--- a/dash/staging/post-jailbreak-root/dashboard/local/theme-menu-service.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/local/theme-menu-service.sh
@@ -15,7 +15,7 @@ RUNTIME_DIR_DEFAULT="/tmp/kindle-dash-theme-menu"
 EVENT_DEVICE_DEFAULT="/dev/input/event2"
 THEME_MENU_COMBO_WINDOW_SECONDS_DEFAULT="0.35"
 HOME_MENU_ITEM_ID="__return_home__"
-HOME_MENU_ITEM_LABEL="Return Home"
+HOME_MENU_ITEM_LABEL="返回"

 # shellcheck disable=SC1090
 [ -f "$ENV_FILE" ] && . "$ENV_FILE"
@@ -114,8 +114,8 @@ theme_field() {
 }

 current_theme_index() {
-  awk -F '\t' -v current_theme="$current_theme_id" '
-    $1 == current_theme {
+  awk -F '\t' -v current_theme="$current_theme_id" -v current_orientation="$current_orientation" '
+    $1 == current_theme && $3 == current_orientation {
      print NR
      found = 1
      exit
@@ -138,6 +138,9 @@ print_line() {
 render_menu() {
  total_themes=$(theme_count)
  current_label=$(theme_field "$selected_index" 2)
+  grid_left_col=3
+  grid_right_col=24
+  grid_start_row=8

  /usr/sbin/eips -c
  print_line 3 1 "Kindle Dashboard"
@@ -146,26 +149,35 @@ render_menu() {
  print_line 3 6 "Selected: $current_label"
  print_line 3 7 "--------------------------------"

-  row=9
  index=1
  while [ "$index" -le "$total_themes" ]; do
    theme_label=$(theme_field "$index" 2)
-    theme_id=$(theme_field "$index" 1)
    prefix="  "
    line_text=""
+    row=0
+    col=0

    if [ "$index" -eq "$selected_index" ]; then
      prefix="> "
    fi

-    if [ "$theme_id" = "$HOME_MENU_ITEM_ID" ]; then
-      line_text="${prefix}${theme_label}"
+    line_text="${prefix}${theme_label}"
+
+    if [ "$index" -le 8 ]; then
+      row_offset=$(( (index - 1) / 2 ))
+      row=$((grid_start_row + row_offset * 2))
+
+      if [ $((index % 2)) -eq 1 ]; then
+        col=$grid_left_col
+      else
+        col=$grid_right_col
+      fi
    else
-      line_text="${prefix}${theme_label} (${theme_id})"
+      row=16
+      col=3
    fi

-    print_line 3 "$row" "$line_text"
-    row=$((row + 2))
+    print_line "$col" "$row" "$line_text"
    index=$((index + 1))
  done

@@ -198,6 +210,7 @@ move_selection() {

 apply_selection() {
  selected_theme_id=$(theme_field "$selected_index" 1)
+  selected_orientation=$(theme_field "$selected_index" 3)

  /usr/sbin/eips -c
  if [ "$selected_theme_id" = "$HOME_MENU_ITEM_ID" ]; then
@@ -209,10 +222,10 @@ apply_selection() {
    return
  fi

-  log_event "apply theme=$selected_theme_id orientation=$current_orientation"
+  log_event "apply theme=$selected_theme_id orientation=$selected_orientation"
  print_line 3 5 "Applying theme..."
-  print_line 3 7 "$selected_theme_id / $current_orientation"
-  "$SWITCH_THEME_CMD" "$selected_theme_id" "$current_orientation"
+  print_line 3 7 "$selected_theme_id / $selected_orientation"
+  "$SWITCH_THEME_CMD" "$selected_theme_id" "$selected_orientation"
  menu_open=false
 }

--- a/dash/staging/post-jailbreak-root/dashboard/local/theme-sync.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/local/theme-sync.sh
@@ -25,6 +25,7 @@ mkdir -p "$STATE_DIR"

 force_index=false
 force_theme=false
+local_only=false
 requested_theme_id=${THEME_ID:-default}
 requested_orientation=${ORIENTATION:-portrait}

@@ -36,6 +37,9 @@ while [ "$#" -gt 0 ]; do
    --force-theme)
      force_theme=true
      ;;
+    --local-only)
+      local_only=true
+      ;;
    --theme)
      shift
      requested_theme_id=${1:?"missing theme id"}
@@ -118,6 +122,11 @@ sync_themes_index() {
    return 0
  fi

+  if [ "$local_only" = true ]; then
+    echo "本地主题包缺少 themes.json。" >&2
+    return 1
+  fi
+
  # 主题清单是全局入口，平时按天同步一次即可。
  # 真正切换主题时会走 --force-index，确保马上拿到最新列表。
  if [ "$force_index" = true ] || [ ! -f "$THEMES_INDEX_CACHE" ] || refresh_due "$THEMES_INDEX_TIMESTAMP_FILE" "$THEMES_INDEX_REFRESH_INTERVAL_MINUTES"; then
@@ -165,6 +174,11 @@ sync_theme_config() {
    return 0
  fi

+  if [ "$local_only" = true ]; then
+    echo "本地主题包缺少主题配置：$resolved_theme_id" >&2
+    return 1
+  fi
+
  # 主题配置按 theme 维度缓存；
  # orientation 只是同一个主题 JSON 里的 variant，切换方向不需要重新拉整份配置。
  needs_theme_fetch=$force_theme
--- a/dash/staging/post-jailbreak-root/dashboard/start.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/start.sh
@@ -6,15 +6,32 @@ DIR="$(dirname "$0")"
 ENV_FILE="$DIR/local/env.sh"
 THEME_FILE="$DIR/local/theme.env"
 LOG_FILE="$DIR/logs/dash.log"
+PID_FILE="$DIR/local/state/dashboard.pid"

 mkdir -p "$(dirname "$LOG_FILE")"
+mkdir -p "$DIR/local/state"

 # shellcheck disable=SC1090
 [ -f "$ENV_FILE" ] && . "$ENV_FILE"
 # shellcheck disable=SC1090
 [ -f "$THEME_FILE" ] && . "$THEME_FILE"

+stop_existing_dashboard_processes() {
+  # 主题切换后再次 start 时，旧的 dash 主循环如果还活着，
+  # 会继续按旧主题或旧坐标补画时钟，最终在屏幕上叠出两个时钟。
+  # 这里统一先清掉旧实例，再启动新的单实例 dashboard。
+  pkill -f "$DIR/dash.sh" 2>/dev/null || true
+  pkill -f "$DIR/local/theme-menu-service.sh" 2>/dev/null || true
+  pkill -f "$DIR/local/touch-home-service.sh" 2>/dev/null || true
+  sleep 1
+}
+
+stop_existing_dashboard_processes
+
+echo "start.sh invoked at $(date '+%Y-%m-%d %H:%M:%S %Z') with DEBUG=$DEBUG" >>"$LOG_FILE"
+
 if [ "$DEBUG" = true ]; then
+  printf '%s\n' "$$" >"$PID_FILE"
  "$DIR/dash.sh"
 else
  # 通过 SSH 或 KUAL 触发时，父 shell 很快就会退出。
@@ -25,4 +42,7 @@ else
  else
    nohup "$DIR/dash.sh" >>"$LOG_FILE" 2>&1 </dev/null &
  fi
+
+  printf '%s\n' "$!" >"$PID_FILE"
+  echo "start.sh spawned dashboard launcher pid=$!" >>"$LOG_FILE"
 fi
--- a/dash/staging/post-jailbreak-root/dashboard/switch-theme.sh
+++ b/dash/staging/post-jailbreak-root/dashboard/switch-theme.sh
@@ -7,10 +7,8 @@ THEME_FILE="$DIR/local/theme.env"
 THEME_RUNTIME_ENV_FILE="$DIR/local/state/theme-runtime.env"
 BACKGROUND_TIMESTAMP_FILE="$DIR/local/state/background-updated-at"
 BACKGROUND_PNG="$DIR/kindlebg.png"
-WAIT_FOR_WIFI_CMD="$DIR/wait-for-wifi.sh"
 THEME_SYNC_CMD="$DIR/local/theme-sync.sh"
 FETCH_DASHBOARD_CMD="$DIR/local/fetch-dashboard.sh"
-CLOCK_RENDER_CMD="$DIR/local/render-clock.sh"

 # shellcheck disable=SC1090
 [ -f "$ENV_FILE" ] && . "$ENV_FILE"
@@ -22,16 +20,19 @@ requested_orientation=${2:-${ORIENTATION:-portrait}}

 mkdir -p "$DIR/local/state"

-# 切换主题时必须立刻联网拉到最新配置和背景，
-# 否则用户会看到 theme.env 已更新，但屏幕内容仍停留在旧主题。
 echo "Switching theme to $requested_theme_id / $requested_orientation"
-"$WAIT_FOR_WIFI_CMD" "$WIFI_TEST_IP"
-"$THEME_SYNC_CMD" --force-index --force-theme --theme "$requested_theme_id" --orientation "$requested_orientation" >/dev/null
+# KUAL 切主题的目标是尽快把 calendar 画出来。
+# 这里强制只用设备上已经同步好的本地主题素材，避免因为网络抖动
+# 又回到首页停留几秒，破坏“直接切到 calendar”的体感。
+"$THEME_SYNC_CMD" --local-only --theme "$requested_theme_id" --orientation "$requested_orientation" >/dev/null

 # shellcheck disable=SC1090
 . "$THEME_RUNTIME_ENV_FILE"

-"$FETCH_DASHBOARD_CMD" "$BACKGROUND_PNG"
+# 背景图同样只从本地主题包读取。
+# 如果本地包缺图，直接失败，让问题暴露出来；补素材应走后台同步或重新部署，
+# 不能把联网等待塞回用户点击主题这条交互链路里。
+"$FETCH_DASHBOARD_CMD" --local-only "$BACKGROUND_PNG"
 date '+%s' >"$BACKGROUND_TIMESTAMP_FILE"

 # 只有在主题配置和背景都成功拉取后，才把当前选择持久化到 theme.env。
@@ -41,6 +42,9 @@ export ORIENTATION='${ORIENTATION}'
 EOF

 /usr/sbin/eips -f -g "$BACKGROUND_PNG"
-"$CLOCK_RENDER_CMD" true
+
+# 这里不再同步阻塞等待时钟重绘。
+# 背景先尽快上屏，让用户从 KUAL 返回后更快看到 calendar；
+# 后续的时钟和遮罩交给 start.sh 拉起的主循环补画。

 echo "Theme switched to ${THEME_ID} / ${ORIENTATION}"
--- a/dash/staging/post-jailbreak-root/extensions/kindle-dash/menu.json
+++ b/dash/staging/post-jailbreak-root/extensions/kindle-dash/menu.json
@@ -1,12 +1,13 @@
 {
  "items": [
     {
-       "name": "Kindle Dashboard",
+       "name": "主题选择",
       "priority": -998,
       "items": [
-         {"name": "Default", "priority": 1, "action": "/mnt/us/dashboard/launch-theme-from-kual.sh", "params": "default", "exitmenu": true},
-         {"name": "Paper", "priority": 2, "action": "/mnt/us/dashboard/launch-theme-from-kual.sh", "params": "paper", "exitmenu": true},
-         {"name": "Classic", "priority": 3, "action": "/mnt/us/dashboard/launch-theme-from-kual.sh", "params": "classic", "exitmenu": true}
+         {"name": "default-横屏", "priority": 1, "action": "/mnt/us/dashboard/launch-theme-from-kual.sh", "params": "default landscape", "exitmenu": true},
+         {"name": "default-竖屏", "priority": 2, "action": "/mnt/us/dashboard/launch-theme-from-kual.sh", "params": "default portrait", "exitmenu": true},
+         {"name": "simple-横屏", "priority": 3, "action": "/mnt/us/dashboard/launch-theme-from-kual.sh", "params": "simple landscape", "exitmenu": true},
+         {"name": "simple-竖屏", "priority": 4, "action": "/mnt/us/dashboard/launch-theme-from-kual.sh", "params": "simple portrait", "exitmenu": true}
       ]
     },
     {"name": "Dashboard Debug On", "action": "/mnt/us/dashboard/debug-on.sh"},