William Mora

Change Screen Brightness From Terminal (Ubuntu 10.04)

If you want to change the screen brightness in Ubuntu (I can’t change it using the keyboard shortcuts or the Ubuntu Power Management menu), open a terminal and execute the following:

sudo setpci -s 00:02.0 F4.B=xx

Where xx is the desired brightness in hex ranging from 0 (brightest) to FF (no brightness at all). I usually change it to CA when working on battery.


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