I've just upgraded to 16.04, and tried to download brightness controller from Ubuntu Software, but I can't find it. I need to reduce the brightness for my eyes' health. Thanks. I'm using a desktop pc with Nvidia GT 220 graphics.
Ubuntu – Adjust Brightness 16.04
brightness
Best Answer
Until you find a better way, you should be able to set the brightness by editing
/etc/sysfs.conf
Have a look in
/sys/class/backlight
to see what is there. I have (a symlink)intel_backlight
but it could beradeon_b10
or something else depending on your hardware. In any case, inside it you should find a file calledbrightness
which contains only a number that represents the current brightness. Make a note of the number! To change this value first make sure you have this package:then open the conf file with a text editor
at the end of the file add a line like this:
replace the path with the path to your brightness file (starting with
class
and no/
), and replace 4000 with whatever number you think the brightness should be - my max brightness is 7812, so 4000 would make it about half as bright. Save the file and exit, then reboot. You will have to use trial and error to find the right brightness this way.Here's where I learned how to do this