[PATCH 0/1][SRU][L][OEM-6.1] Screen backlight keeps in minimized and can't change it with amdgpu
AceLan Kao
acelan.kao at canonical.com
Thu Mar 2 09:40:28 UTC 2023
From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
BugLink: https://launchpad.net/bugs/2008871
[Impact]
Sometimes the system boots up with both acpi_video0 and amdgpu_bl0 sysfs
interfaces and the acpi_video0 doesn't work.
[Fix]
Add this machine to the video_detect_dmi_table to force it uses native
backlight interface which is amdgpu_bl0.
https://lkml.org/lkml/2023/3/2/187
[Verify]
Verified by our QA and ODM.
[Where problems could occur]
Pretty safe to add the DMI quirk, won't affect other platforms.
Chia-Lin Kao (AceLan) (1):
UBUNTU: SAUCE: ACPI: video: Add backlight=native DMI quirk for Dell
Vostro 15 3535
drivers/acpi/video_detect.c | 7 +++++++
1 file changed, 7 insertions(+)
--
2.34.1
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