Set brightness from terminal
Set Screen Brightness from Terminal We can set screen brightness from terminal by using xbacklight. Intially we have to install it before using. Open your terminal and type as sudo apt-get install xbacklight and then to set brightness to 10% more execute the command as xbacklight -inc 10 To decrease brightness by 10% xbacklight -dec 10 If you want to set the brightness to some level then, you can use the command as xbacklight -set 50 The above command will set the brightness to 50. It will range from 0 to 100. If you have any issues you can use comments to let me know. Hope that helps.