[Bug 203905] amdgpu:actual_brightness has unreal/wrong value

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=203905

Filip Hejsek (filip.hejsek at gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |filip.hejsek at gmail.com

--- Comment #29 from Filip Hejsek (filip.hejsek at gmail.com) ---
All the workarounds posted here are for a different bug:
https://bugzilla.kernel.org/show_bug.cgi?id=210263

There are three different problems:
- setting brightness doesn't work before showing something on display (the bug
linked above)
- actual_brightness has wrong range (this bug)
- kernel uses aux for backlight control on systems that don't support it

For the third problem, there is a patch in
https://bugzilla.opensuse.org/show_bug.cgi?id=1180749, and it seems to be
merged already. However, because there is no way yet to detect that aux
backlight doesn't work, the workaround has to be enabled with
amdgpu.aux_backlight=0 (assuming you have a kernel with the patch).

-- 
You may reply to this email to add a comment.

You are receiving this mail because:
You are watching the assignee of the bug.