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sudoku

Member

Registered: 2012-10-31

Posts: 96

[WORKAROUND] Screen Backlight Brightness notification spam at boot

Since about a week (I found time to report it only now), my boot log is filled with dozens of notifications:

Starting Load/Save Screen Backlight Brightness of leds:rgb:kbd_backlight_82
Starting Load/Save Screen Backlight Brightness of leds:rgb:kbd_backlight_83
Starting Load/Save Screen Backlight Brightness of leds:rgb:kbd_backlight_84
...

I assume these are due to `systemd-backlight` restoring the status of screen leds from before the reboot. However, some of these will get stuck for a few seconds, drawing out my boot process.

I've tried masking the service, but to no effect.

Hardware: TUXEDO Stellaris 17 Gen. 3

Last edited by sudoku (2024-01-31 19:39:55)

sudoku

Member

Registered: 2012-10-31

Posts: 96

Re: [WORKAROUND] Screen Backlight Brightness notification spam at boot

Apparently a bug with package nvidia 545: https://github.com/NVIDIA/open-gpu-kern … issues/573

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,231

Re: [WORKAROUND] Screen Backlight Brightness notification spam at boot

Why would you think that? There's reference to the keyboard led in your excerpt you posted and according to that bug report the issue is fixed on nvidia's side with the driver we have.

sudoku

Member

Registered: 2012-10-31

Posts: 96

Re: [WORKAROUND] Screen Backlight Brightness notification spam at boot

Thanks. Indeed the "kbd_backlight" bit would suggest it's a keyboard backlight issue, then it might be related to the tuxedo-control-center package controlling the backlight on TUXEDO laptops.

I've opened an issue on tuxedo-control-center gitlab and awaiting input there: https://gitlab.com/tuxedocomputers/deve … issues/163

Last edited by sudoku (2024-01-31 13:12:53)

sudoku

Member

Registered: 2012-10-31

Posts: 96

Re: [WORKAROUND] Screen Backlight Brightness notification spam at boot

Not a solution, but a workaround: masking all the systemd-backlight@leds:rgb:kbd_backlight* services gets my boot time reasonable again.

sudo systemctl mask "systemd-backlight@leds:rgb:kbd_backlight"
for ((i=1; i<=125; i++)) 
do
    sudo systemctl mask "systemd-backlight@leds:rgb:kbd_backlight_$i"
done

Last edited by sudoku (2024-01-31 22:18:28)