http://bugzilla.opensuse.org/show_bug.cgi?id=1180749
http://bugzilla.opensuse.org/show_bug.cgi?id=1180749#c21
--- Comment #21 from Antony J.R
Thanks. Then I misunderstood situation as if the backlight control didn't take any effect.
I mean the backlight is constantly at maximum brightness and I can't decrease or control it. The only thing works is the brightness slider in OpenSUSE and the brightness value is only reflected in /sys/class/backlight/amdgpu_bl0/brightness file but the backlight does not change at all. I think I misled you saying "Here the brightness changed when changed the brightness but actual_brightness is stuck at 311 constantly.", Here I said /sys/class/backlight/amdgpu_bl0/brightness changes when I change the brightness slider in the OS (or Fn Keys) but the backlight still remains at maximum brightness.
Now I refreshed the OBS KMP repo to contain the possible fix. It's being rebuilt, and please give it a try later. The rpm changelog should contain the entry like: - Add a proper fix (attempt): 0001-drm-amd-display-Fix-the-brightness-read-via-aux.patch
At first, uninstall the previous KMP, just do "zypper rm amdgpu-dbg-kmp-default" Then re-install the new rpm, run mkinitrd and retest. This doesn't contain the debug prints, so report back whether it works or not.
I will report back ASAP. -- You are receiving this mail because: You are the assignee for the bug.