diff options
| author | Werner Sembach <wse@tuxedocomputers.com> | 2022-03-15 20:02:28 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-28 08:46:47 +0200 |
| commit | b0222e222d773208a4cd0d76d52cf8987034ff37 (patch) | |
| tree | 00500615f9e916666d6d1bfd7900264476c6e606 /drivers/acpi | |
| parent | d7f29f397b742b46070ee96e5aea1721905adfc5 (diff) | |
ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU
commit c844d22fe0c0b37dc809adbdde6ceb6462c43acf upstream.
Clevo NL5xRU and NL5xNU/TUXEDO Aura 15 Gen1 and Gen2 have both a working
native and video interface. However the default detection mechanism first
registers the video interface before unregistering it again and switching
to the native interface during boot. This results in a dangling SBIOS
request for backlight change for some reason, causing the backlight to
switch to ~2% once per boot on the first power cord connect or disconnect
event. Setting the native interface explicitly circumvents this buggy
behaviour by avoiding the unregistering process.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/video_detect.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index e7978d983b26..de4142723ff4 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -372,6 +372,81 @@ static const struct dmi_system_id video_detect_dmi_table[] = { DMI_MATCH(DMI_BOARD_NAME, "BA51_MV"), }, }, + /* + * Clevo NL5xRU and NL5xNU/TUXEDO Aura 15 Gen1 and Gen2 have both a + * working native and video interface. However the default detection + * mechanism first registers the video interface before unregistering + * it again and switching to the native interface during boot. This + * results in a dangling SBIOS request for backlight change for some + * reason, causing the backlight to switch to ~2% once per boot on the + * first power cord connect or disconnect event. Setting the native + * interface explicitly circumvents this buggy behaviour, by avoiding + * the unregistering process. + */ + { + .callback = video_detect_force_native, + .ident = "Clevo NL5xRU", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"), + DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"), + }, + }, + { + .callback = video_detect_force_native, + .ident = "Clevo NL5xRU", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "SchenkerTechnologiesGmbH"), + DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"), + }, + }, + { + .callback = video_detect_force_native, + .ident = "Clevo NL5xRU", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Notebook"), + DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"), + }, + }, + { + .callback = video_detect_force_native, + .ident = "Clevo NL5xRU", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"), + DMI_MATCH(DMI_BOARD_NAME, "AURA1501"), + }, + }, + { + .callback = video_detect_force_native, + .ident = "Clevo NL5xRU", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"), + DMI_MATCH(DMI_BOARD_NAME, "EDUBOOK1502"), + }, + }, + { + .callback = video_detect_force_native, + .ident = "Clevo NL5xNU", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"), + DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"), + }, + }, + { + .callback = video_detect_force_native, + .ident = "Clevo NL5xNU", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "SchenkerTechnologiesGmbH"), + DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"), + }, + }, + { + .callback = video_detect_force_native, + .ident = "Clevo NL5xNU", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Notebook"), + DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"), + }, + }, /* * Desktops which falsely report a backlight and which our heuristics |