1XBACKLIGHT(1) General Commands Manual XBACKLIGHT(1)
2
3
4
6 xbacklight - adjust backlight brightness using RandR extension
7
9 xbacklight [-help] [-display display] [-get] [-set percent] [-inc per‐
10 cent] [-dec percent]
11
13 Xbacklight is used to adjust the backlight brightness where supported.
14 It finds all outputs on the X server supporting backlight brightness
15 control and changes them all in the same way.
16
17 -get Print out the current backlight brightness of each output with
18 such a control. The brightness is represented as a percentage of
19 the maximum brightness supported.
20
21 -set percent
22 Sets each backlight brightness to the specified level.
23
24 -inc percent
25 Increases brightness by the specified amount.
26
27 -dec percent
28 Decreases brightness by the specified amount.
29
30 -help Print out a summary of the usage and exit.
31
32 -time milliseconds
33 Length of time to spend fading the backlight between old and new
34 value. Default is 200.
35
36 -steps number
37 Number of steps to take while fading. Default is 20.
38
40 Xrandr(3)
41
43 Keith Packard, Open Source Technology Center, Intel Corporation.
44
45
46
47X Version 11 xbacklight 1.1.2 XBACKLIGHT(1)