Reduce Ubuntu Brightness

0.5

xrandr --output LVDS1 --brightness 0.5

0.1

xrandr --output LVDS1 --brightness 0.1

Normal

xrandr --output LVDS1 --brightness 1.0

Beyond Normal

xrandr --output LVDS1 --brightness 2.0

Future

If we can do reducing Ubuntu screen brightness via command line, and we now can create an application to run any Linux command line, then next we can make an application to do xrandr command above from GUI. Just slide and you can save the brightness setting. Or further, you can create any preset and use them any time you need.

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