Control Backlight Brightness with xbacklight | Online Free DevTools by Hexmos
Control and adjust screen backlight brightness using xbacklight. Get current brightness, increase, decrease, or set precise brightness levels with simple commands. Free online tool, no registration required.
xbacklight
Utility to adjust backlight brightness using the RandR extension. More information: https://manned.org/xbacklight.
- 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}}