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ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807

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[ Upstream commit 25417185e9b5ff90746d50769d2a3fcd1629e254 ]

The GIGABYTE GB-BXBT-2807 is a mini-PC which uses off the shelf
components, like an Intel GPU which is meant for mobile systems.
As such, it, by default, has a backlight controller exposed.

Unfortunately, the backlight controller only confuses userspace, which
sees the existence of a backlight device node and has the unrealistic
belief that there is actually a backlight there!

Add a DMI quirk to force the backlight off on this system.

Signed-off-by: Jasper St. Pierre <jstpierre@mecheye.net>
Reviewed-by: Chris Chiu <chiu@endlessos.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jasper St. Pierre 2020-12-02 14:39:42 +08:00 committed by Greg Kroah-Hartman
parent c5188a98d2
commit d3116e06fb
1 changed files with 7 additions and 0 deletions
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7
drivers/acpi/video_detect.c
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@ -140,6 +140,13 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
{
.callback = video_detect_force_vendor,
.ident = "GIGABYTE GB-BXBT-2807",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
DMI_MATCH(DMI_PRODUCT_NAME, "GB-BXBT-2807"),
},
},
{
.ident = "Sony VPCEH3U1E",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),