File xf86-video-intel-dell_backlight.diff of Package xorg-x11-driver-video

diff --git a/src/intel_display.c b/src/intel_display.c
index 1198013..967f062 100644
--- a/src/intel_display.c
+++ b/src/intel_display.c
@@ -119,6 +119,7 @@ intel_output_dpms_backlight(xf86OutputPtr output, int oldmode, int mode);
  */
 static const char *backlight_interfaces[] = {
 	"intel", /* prefer our own native backlight driver */
+	"dell_backlight",
 	"asus-laptop",
 	"eeepc",
 	"thinkpad_screen",