xbacklight1
Adjust backlight brightness using randr extension
Usage
xbacklight [-help]
[-display
display]
[-get]
[-set
percent]
[-inc
percent]
[-dec
percent]
[-time
milliseconds]
[-steps
number]
Overview
Xbacklight is used to adjust the backlight brightness where supported. It finds all outputs on the X server supporting backlight brightness control and changes them all in the same way.
-
-get -
Print out the current backlight brightness of each output with such a control. The brightness is represented as a percentage of the maximum brightness supported.
-
-set percent -
Sets each backlight brightness to the specified level.
-
-inc percent -
Increases brightness by the specified amount.
-
-dec percent -
Decreases brightness by the specified amount.
-
-help -
Print out a summary of the usage and exit.
-
-version -
Print out the program version and exit.
-
-time milliseconds -
Length of time to spend fading the backlight between old and new value. Default is 200.
-
-steps number -
Number of steps to take while fading. Default is 20.
Releases
10 releases since Debian 5.0 (Lenny); the text changed 5 times.
-version since Debian 13 (Trixie).