Provided by: xbacklight_1.2.1-1build1_i386 bug


       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.

       -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.