This is a note to let you know that I've just added the patch titled
ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-video-add-dmi-quirk-for-gigabyte-gb-bxbt-2807.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e28fc4e10dea2abc48969b3c350c485c647de92f
Author: Jasper St. Pierre <jstpierre@xxxxxxxxxxx>
Date: Wed Dec 2 14:39:42 2020 +0800
ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807
[ 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@xxxxxxxxxxx>
Reviewed-by: Chris Chiu <chiu@xxxxxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 4f5463b2a217..811d298637cb 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -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"),
