diff -u -r -N -b xf86-video-intel-2.3.2/src/i830_lvds.c xf86-video-intel-2.3.2-asus/src/i830_lvds.c
--- xf86-video-intel-2.3.2/src/i830_lvds.c	2008-06-17 08:49:32.000000000 +0700
+++ xf86-video-intel-2.3.2-asus/src/i830_lvds.c	2008-06-19 03:24:16.000000000 +0700
@@ -83,6 +83,7 @@
  * List of available kernel interfaces in priority order
  */
 static char *backlight_interfaces[] = {
+    "asus-laptop",
     "thinkpad_screen",
     "acpi_video1",
     "acpi_video0",