You are not logged in.
For some reason I can only change the backlight of the monitor (iMac 2013 21inch) with the Linux kernel 5.4LTS.
I tested several different versions (LTS and non-LTS) and was unsuccessful.
Would anyone have any idea where to start?
I have already tested xbacklight and other commands with xrandr on the terminal and I was not successful.
I believe it is some driver problem.
My specs:
Linux 5.12.6-arch1-1 (ArcoLinux)
GPU: NVIDIA Geforce GT 750M
Thank you all for your attention!
Offline