XBACKLIGHT(1)               General Commands Manual              XBACKLIGHT(1)

       xbacklight - adjust backlight brightness using RandR extension

       xbacklight [-help]  [-display display] [-get] [-set percent] [-inc
       percent] [-dec percent]

       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.

              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.


       Keith Packard, Open Source Technology Center, Intel Corporation.

X Version 11                   xbacklight 1.2.3                  XBACKLIGHT(1)