linux screen brightness command line
$ xrandr | grep " connected" | cut -f1 -d " "
VGA1
$ xrandr --output VGA1 --brightness 0.7linux screen brightness command line
$ xrandr | grep " connected" | cut -f1 -d " "
VGA1
$ xrandr --output VGA1 --brightness 0.7Adjust the second monitor brightness linux
# Get the name of current monitors
xrandr --listactivemonitors
# Adjust the monitor brightness
xrandr --output <monitor-name> --brightness 0.5
#Example
xrandr --output HDMI-1-1 --brightness 0.5Copyright © 2021 Codeinu
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