| commit | 4b4b3b20e8e645be103cf737827372f86479867a | |
| author | Hans de Goede <hdegoede@redhat.com> | |
| Tue, 22 Dec 2015 18:09:52 +0000 (22 19:09 +0100) | ||
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | |
| Fri, 1 Jan 2016 02:14:51 +0000 (1 03:14 +0100) | ||
| tree | b887ba92943e514c2e01f9557c994c362ee014be | treesnapshot (tar.gz zip) |
| parent | 05bc59a079eaa6c38b049473fe62fab84d934802 | commitdiff |
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>
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>
| drivers/acpi/acpi_video.c | diffblobblamehistory | |
| drivers/acpi/video_detect.c | diffblobblamehistory |