I had bought Lenovo IdeaPad Pro 5 14IMH9 this week, but when I installed Ubuntu 22.04.4 LTS, there is no option to adjust brightness. I feel like I tried everything with my friend - updating drivers, editing Linux value in grub, installing external application such as Light or Brightness controller, but nothing helped me.
Could you help, please?
Maybe it is because of the OLED display and there is no support yet?