xbacklight
xbacklight
TLDR
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]
