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brightnessctl

Utility for reading and controlling device brightness for Linux operating systems. More information: https://github.com/Hummer12007/brightnessctl.

List devices with changeable brightness:

brightnessctl --list

Print the current brightness of the display backlight:

brightnessctl get

Set the brightness of the display backlight to a specified percentage within range:

brightnessctl set {{50%}}

Increase brightness by a specified increment:

brightnessctl set {{+10%}}

Decrease brightness by a specified decrement:

brightnessctl set {{10%-}}