diff --git a/[refs] b/[refs]
index 3a4d6b08f769..feee866a9bdc 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 325253a6b2de4bdfa9ef0e28b5df8a4a4fe2b677
+refs/heads/master: 36342742a3cbd52f7ca0582f23788c99c2ec8256
diff --git a/trunk/drivers/acpi/video.c b/trunk/drivers/acpi/video.c
index 60ea984c84a0..5845398479fa 100644
--- a/trunk/drivers/acpi/video.c
+++ b/trunk/drivers/acpi/video.c
@@ -1960,6 +1960,10 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event)
 
 	result = acpi_video_device_lcd_set_level(device, level_next);
 
+	if (!result)
+		backlight_force_update(device->backlight,
+				       BACKLIGHT_UPDATE_HOTKEY);
+
 out:
 	if (result)
 		printk(KERN_ERR PREFIX "Failed to switch the brightness\n");