0

I tried everything I found online, but none of the methods I found worked. The buttons don't work, and there's no such thing as Brightness in Monitor Settings. I tried 

xbacklight -set

but it didn't do anything. (Theoretically it should have worked, I have everything installed and it actually ran, but no effect was shown.) I also tried 

xrandr --output VG1 --brightness

but it had some error.

My eyes are pleading for help :3

Zanna
  • 72,312
equula
  • 1

1 Answers1

0

Everything in Linux is a file. There is a device file to change the brightness.

Open terminal using Ctrl+Alt+T.

Execute this command: cd /sys/class/backlight/ . Under this directory you'll find a dir named acpi_video0, you might get it with different name.

enter image description here

CD to that directory. cd acpi_video0 and open the file brightness using root user.

enter image description here

You can write a command or a keyboard shortcut that does the modification of the file for you. It's up to you how you want it!

manishrw
  • 133