Index: firmware/backlight.c
===================================================================
--- firmware/backlight.c	(Revision 20779)
+++ firmware/backlight.c	(Arbeitskopie)
@@ -149,6 +149,7 @@
 static int buttonlight_timer;
 int _buttonlight_timeout = 5*HZ;
 
+static void backlight_timeouts_handler(void);
 /* Update state of buttonlight according to timeout setting */
 static void buttonlight_update_state(void)
 {
@@ -578,7 +579,7 @@
             queue_wait_w_tmo(&backlight_queue, &ev, FADE_DELAY);
         else
 #endif
-            queue_wait(&backlight_queue, &ev);
+            queue_wait_w_tmo(&backlight_queue, &ev, HZ);
         switch(ev.id)
         {   /* These events must always be processed */
 #ifdef _BACKLIGHT_FADE_BOOST
@@ -690,22 +691,26 @@
                 remote_backlight_update_state();
 #endif
                 break;
+            case SYS_TIMEOUT:
+                backlight_timeouts_handler();
 #if  (CONFIG_BACKLIGHT_FADING == BACKLIGHT_FADING_SW_SETTING) \
     || (CONFIG_BACKLIGHT_FADING == BACKLIGHT_FADING_SW_HW_REG)
-            case SYS_TIMEOUT:
                 if ((_backlight_fade_step(backlight_fading_state)))
                     backlight_fading_state = NOT_FADING; /* finished fading */
+#endif /* CONFIG_BACKLIGHT_FADING */
                 break;
-#endif /* CONFIG_BACKLIGHT_FADING */
         }
     } /* end while */
 }
 
-static void backlight_tick(void)
+static void backlight_timeouts_handler(void)
 {
+    static long last_tick = 0;
+    unsigned long delta = MIN(HZ,(unsigned long)(current_tick - last_tick));
     if(backlight_timer)
     {
-        if(--backlight_timer == 0)
+        backlight_timer -= delta;
+        if(backlight_timer <= 0)
         {
             backlight_off();
         }
@@ -713,7 +718,8 @@
 #ifdef HAVE_LCD_SLEEP
     else if(lcd_sleep_timer)
     {
-        if(--lcd_sleep_timer == 0)
+        lcd_sleep_timer -= delta;
+        if(lcd_sleep_timer <= 0)
         {
             /* Queue on bl thread or freeze! */
             queue_post(&backlight_queue, LCD_SLEEP, 0);
@@ -723,7 +729,8 @@
 #ifdef HAVE_REMOTE_LCD
     if(remote_backlight_timer)
     {
-        if(--remote_backlight_timer == 0)
+        remote_backlight_timer -= delta;
+        if(remote_backlight_timer <= 0)
         {
             remote_backlight_off();
         }
@@ -732,12 +739,14 @@
 #ifdef HAVE_BUTTON_LIGHT
     if (buttonlight_timer)
     {
-        if (--buttonlight_timer == 0)
+        buttonlight_timer -= delta;
+        if (buttonlight_timer == 0)
         {
             buttonlight_off();
         }
     }
 #endif /* HAVE_BUTTON_LIGHT */
+    last_tick = current_tick;
 }
 
 void backlight_init(void)
@@ -764,7 +773,6 @@
                   sizeof(backlight_stack), 0, backlight_thread_name
                   IF_PRIO(, PRIORITY_USER_INTERFACE)
                   IF_COP(, CPU));
-    tick_add_task(backlight_tick);
 }
 
 #ifdef BACKLIGHT_DRIVER_CLOSE