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authorStephen Chandler Paul <thatslyude@gmail.com>2014-04-04 10:44:46 -0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-04-07 14:10:21 +0200
commit997dd7fe546b33a4f86adc635c5ffc0e79966cf2 (patch)
tree3c54e0b2bd434153efc5cfa1d84358f8ff07749d /drivers/acpi/video.c
parent70f6c087573eeb406252ff8d98f511eb5f71496e (diff)
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>
Diffstat (limited to 'drivers/acpi/video.c')
-rw-r--r--drivers/acpi/video.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 48c7e8af9c9..8b6990e417e 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -488,6 +488,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
},
},
{
+ .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",
.matches = {