Comment 0 for bug 1885087

systemd-backlight saves the brightness value right before shutdown.target, however it doesn't work because the nvidia_0 backlight sysfs disappears after GFX device is closed by Xorg, long before shutdown.target.

[Impact]
System can not keep the brightness value, after reboot/poweroff the brightness will still be highest.

[Fix]
Suggested by Nvidia, we need to run nvidia-persistenced.service before systemd-backlight@backlight:nvidia_0.service

[Test Case]
Adjust the brightness value, reboot, the value must keep persistence during boots.

[Regression Risk]
Low, this fix is just adjust the systemd order more earier.