From: Stephen Chandler Paul Date: Fri, 4 Apr 2014 14:44:46 +0000 (-0400) Subject: ACPI / video: Favor native backlight interface for ThinkPad Helix X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=997dd7fe546b33a4f86adc635c5ffc0e79966cf2;p=linux-beck.git 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 Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 48c7e8af9c96..8b6990e417ec 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -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",