Commit 997dd7fe authored Apr 04, 2014 by Stephen Chandler Paul Committed by Rafael J. Wysocki Apr 07, 2014

ACPI / video: Favor native backlight interface for ThinkPad Helix

Like many other Windows 8 laptops the ThinkPad Helix's backlight has a
broken ACPI interface and can only be properly adjusted by using the
video card's native backlight control. This adds the ThinkPad Helix to
the list of laptops affected with this issue so that
video.use_native_backlight is enabled by default.

Signed-off-by: Stephen Chandler Paul <thatslyude@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 70f6c087

drivers/acpi/video.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -487,6 +487,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
		DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Yoga 13"),
		},
		},
		{
		.callback = video_set_use_native_backlight,
		.ident = "Thinkpad Helix",
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix"),
		},
		},
		{
		.callback = video_set_use_native_backlight,
		.ident = "Dell Inspiron 7520",

Admin message