Screen brightness is not retained between reboots

it command respon

$ systemctl status systemd-backlight@backlight\:intel_backlight.service ● systemd-backlight@backlight:intel_backlight.service - Load/Save Screen Backlight Brightness of backlight> Loaded: loaded (/usr/lib/systemd/system/systemd-backlight@.service; static) Active: inactive (dead)

How to activated ?

Because I just did an update


sudo systemctl start systemd-backlight@backlight\:intel_backlight.service
sudo systemctl enable systemd-backlight@backlight\:intel_backlight.service

Hi @gilcon!

I downgraded to Mesa 20.1.3-1 but my issue remains unchanged.

My output for systemctl status systemd-backlight@backlight\:intel_backlight.service is as follows:

systemd-backlight@backlight:intel_backlight.service - Load/Save Screen Backlight Brightness of backlight:intel_backlight
Loaded: loaded (/usr/lib/systemd/system/systemd-backlight@.service; static)
Active: active (exited) since Sat 2020-09-12 08:10:49 IST; 15min ago
Docs: man:systemd-backlight@.service(8)
Process: 415 ExecStart=/usr/lib/systemd/systemd-backlight load backlight:intel_backlight (code=exited, status=0/SUCCESS)
Main PID: 415 (code=exited, status=0/SUCCESS)

hmm the intel backlight service status is same as mine.

Is your secondary monitor connected via VGA? try it on hdmi port.

Hopefully there’s a fix in the next systemd release that should fix the issue.

Anyway, if you have a vga different than amdgpu and keep experiencing the issue, report it to devs.

1 Like

Thank you for all the help.

Here are some outputs in my case.


I hope this helps.