https://bugzilla.redhat.com/show_bug.cgi?id=2015628
Paul Lambert <eb30750(a)gmail.com> changed:
What |Removed |Added
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Component|xkeyboard-config |xorg-x11-drv-amdgpu
CC| |atherchris(a)gmail.com
--- Comment #1 from Paul Lambert <eb30750(a)gmail.com> ---
I found that my laptop uses the backlight class as in
/sys/class/backlight/amdgpu_bl0.
This is the systemctl output:
systemctl status systemd-backlight@backlight
○ systemd-backlight(a)backlight.service - Load/Save Screen Backlight Brightness
of backlight
Loaded: loaded (/usr/lib/systemd/system/systemd-backlight@.service;
static)
Active: inactive (dead)
Docs: man:systemd-backlight@.service(8)
It appears that there are a couple of issues.
1) The brigthness numbers get converted to 5 digits instead of 3 which is not
valid.
https://bugzilla.kernel.org/show_bug.cgi?id=203905
2) There is a bug in the admgpu kernel driver that enables it even if the
backlight device is controlled by AUX.
https://unix.stackexchange.com/questions/616371/backlight-control-not-wor...
#1 is a kernel fix and it might be quite awhile before this gets fixed. Are
there any workarounds?
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https://bugzilla.redhat.com/show_bug.cgi?id=2015628