Changes brightness of all connected monitors in software. This is to be used in the case where xbacklight fails.
It was designed to be bound to keyboard shortcuts.
brightness 75
brightness -5
brightness +10
brightess [n] [+n] [-n]
n An integer from 0 to 100 specifies a brightness level.
+n Increase brightness by n.
-n Decrease brightness by n.
No argument shows current brightness level.
- wget https://github.com/hackerb9/brightness/raw/master/brightness
- chmod 755 brightness
- sudo mv brightness /usr/local/bin/
I've also written a program called sarmad which works for external monitors using the built-in brightness keys on laptops. It monitors the brightness of the internal backlight and replicates that.