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I have a problem in Ubuntu 21.10 with my laptop screen brightness. After restart my screen is set to maximum, but the settings shows something else.

System Menu Image

$ cat /sys/class/backlight/amdgpu_bl0/actual_brightness

Output: 255. Same as the max_brightness

What should I do to solve this problem? I use a Lenovo IdeaPad Gaming 3 15ARH05.

Pablo Bianchi
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Andrei Chiper
  • 1

0 Answers0