Utility to adjust backlight brightness - xbacklight

TLDR pages
#1

Utility to adjust backlight brightness using the RandR extension. More information: xorg / app / xbacklight · GitLab.

  • Get the current screen brightness as a percentage:

xbacklight

  • Set the screen brightness to 40%:

xbacklight -set {{40}}

  • Increase current brightness by 25%:

xbacklight -inc {{25}}

  • Decrease current brightness by 75%:

xbacklight -dec {{75}}

  • Increase backlight to 100%, over 60 seconds (value given in ms), using 60 steps:

xbacklight -set {{100}} -time {{60000}} -steps {{60}}