Light is a program to control backlight controllers under GNU/Linux, it is the successor of lightscript, which was a bash script with the same purpose, and tries to maintain the same functionality. Features - Works excellent where other software have been proven unusable or problematic, thanks to how it operates internally and the fact that it does not rely on X. - Can automatically figure out the best controller to use, making full use of underlying hardware. - Possibility to set a minimum brightness value, as some controllers set the screen to be pitch black at a value of 0 (or higher).
See also: light-locker.