Brightness problem with laptop in Ubuntu 20.04 LTS (no Intel Graphics, Nvidia only)

GPU Unix Graphics Linux
#1

I posted this issue on askubuntu, but no one has been able to help so far. My problem is that the brightness level on my laptop will never save and apply after reboot. Please refer to the link for further details, but I will summarize it here. I created a /usr/share/X11/xorg.conf.d/80-backlight.conf file, but all the information in the file is for intel. Like so

Section “Device”
Identifier “Intel Graphics”
Driver “intel”
Option “AccelMethod” “sna”
Option “Backlight” “acpi_video0”
BusID “PCI:0:2:0”
EndSection

How can I find the information I need to fix this and have the screen brightness start working so that I don’t have to adjust it after every reboot.

#2

Have you found the answer for your issue?
I have the same problem and can’t find the answer anywhere.

#3

Saving/restoring the brightness level is not the responsibility of the driver but the system/distro. This is most often done by the systemd-backlight service.