How to make your screen brightness switches work on ASUS M70 M50

Submitted by k4tz on Fri, 11/07/2008 - 11:25

A quick and simple how to, This tutorial is for all Asus M50 and Asus M70 models with ambient light sensor.
It was tested specifically on an Asus M70VM-C1
This how too will enable your LCD light switchs on your keyboard, so you can manually change the brightness of your LCD. This will disable your ambient light sensor if it in fact did work on your initial install of Ubuntu 8.10, 8.04

ok so for those of you scared of terminal this is easy to do and you can easily copy and paste.

Go to Applications>Accessories>Terminal

Install sysfsutils

Code:
sudo apt-get install sysfsutils

Then go to and edit the following file

Code:
sudo gedit /etc/sysfs.conf

At the end of the opened file add the following line as typed below

Code:
devices/platform/asus-laptop/ls_switch=0

Reboot

This will enable your keyboard LCD brightness toggle switches to function on your next reboot.

special thanks for this tutorial go to everyone in the This thread
and This Bug Report

 

Source: http://ubuntuforums.org/showthread.php?t=973403