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authorHans de Goede <hdegoede@redhat.com>2015-12-22 21:09:52 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-01-01 05:14:51 +0300
commit4b4b3b20e8e645be103cf737827372f86479867a (patch)
treeb887ba92943e514c2e01f9557c994c362ee014be /drivers/acpi/video_detect.c
parent05bc59a079eaa6c38b049473fe62fab84d934802 (diff)
downloadlinux-4b4b3b20e8e645be103cf737827372f86479867a.tar.xz
ACPI / video: Add quirks for the Dell Vostro V131
The Dell Vostro V131 has an especially broken acpi-video implementation. The backlight control bits work, but when the brightness is changed via the acpi-video interface the backlight flickers annoyingly before settling at the new brightness, switching to using the native interface fixes the flickering so add a quirk for this (the vendor interface has the same problem). Brightness keypresses reported through the acpi-video-bus are also broken, they get reported one event delayed, so if you press the brightness-up hotkey on the keyboard nothing happens, then if you press brightness-down, the previous brightness-up event gets reported. Since the keypresses are also reported via wmi (if active) and via atkbd (when wmi is not active) add a quirk to simply filter out the delayed (broken) events. Reported-and-tested-by: Michał Kępień <kernel@kempniu.pl> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/video_detect.c')
-rw-r--r--drivers/acpi/video_detect.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index daaf1c4e1e0f..8fe2682380e9 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -279,6 +279,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"),
},
},
+ {
+ .callback = video_detect_force_native,
+ .ident = "Dell Vostro V131",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"),
+ },
+ },
{ },
};