** Changed in: linux-oem-6.1 (Ubuntu Jammy)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/2008871
Title:
Screen backlight keeps in minimized and can't change it with amdgpu
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-6.1 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-oem-6.1 source package in Jammy:
Fix Committed
Status in linux source package in Lunar:
In Progress
Status in linux-oem-6.1 source package in Lunar:
Invalid
Bug description:
[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.
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