Arch Linux

fivre

Member

Registered: 2007-04-17

Posts: 99

Screen brightness

I have a laptop and want to conserve battery use. However, Acer, in their infinite wisdom, did not make any hard brightness controls other than a switch that turns the backlight off entirely. Are there any software utilities that I can use to control screen brightness?

lessthanjake

Member

From: Norway

Registered: 2005-11-09

Posts: 319

Website

Re: Screen brightness

You could try something like this, where NNN is brightness level and XXX depends on your system.

echo NNN > /proc/acpi/video/XXX/XXX/brightness

Remember to modprobe video before doing this.