Index: firmware/backlight.c
===================================================================
--- firmware/backlight.c	(revision 20805)
+++ firmware/backlight.c	(working copy)
@@ -456,7 +456,8 @@
         queue_post(&backlight_queue, SYS_TIMEOUT, 0);
 #else
         _backlight_off();
-#ifdef HAVE_LCD_SLEEP
+#if defined(HAVE_LCD_SLEEP) \
+    && (CONFIG_BACKLIGHT_FADING != BACKLIGHT_FADING_PWM)
         backlight_lcd_sleep_countdown(true); /* start sleep countdown */
 #endif
 #endif