ASUS Light sensor

[triptych03]

Hey all, well the problem is with the stupid ASUS light sensor. I have an M50SV. I can turn it off by

echo 0 > /sys/devices/platform/asus-laptop/ls_switch

however when rebooting the settings go back. !@#$%

Does anyone know of a perm fix?

Using Hardy

Cheers.

[Whiffle]

Install sysfsutils, and then I think in the file /etc/sysfs.conf (might double check that), put

devices/platform/asus-laptop/ls_switch=0

[triptych03]

cheers I'll give it a try

[triptych03]

Install sysfsutils, and then I think in the file /etc/sysfs.conf (might double check that), put

devices/platform/asus-laptop/ls_switch=0

Works perfectly thanx heaps... great little util

[barney66]

Hi there, I would like to be able to do this... however every time I go to save the sysfs.conf file I get an error saying I don't have permission to save the file... can someone provide a solution for a newbie please....

regards,
barney

[Soaa-]

You have to edit it as root.

In Ubuntu:

sudo gedit /etc/sysfs.conf

In Kubuntu:

sudo kate /etc/sysfs.conf

In Xubuntu:

sudo mousepad /etc/sysfs.conf

[Flying caveman]

Thanks Whiffle. Hey there's no thank button ???

For the record mine is a ASUS Z71v / Z7100 running Ubuntu 8.04

Just upgraded from 7.04 and I can't remember if it never worked or just stayed bright all the time. I didn't really care until all of a sudden that feature was working now, but not how I wanted it to. It would dim down way too much when it was dark. Fine for watching a movie but too hard on the eyes for reading any text.

Its not really a power saving feature when I have to turn on a desk lamp so my laptop doesn't get too dim.

[An6oon]

Hey guys,
I am a new Ubuntu user and I have an asus m50sa laptop. I am also having problems with the light sensor. I did try to do whatever you guys wrote but nothing seemed to work. I don't know if it is me who's doing something wrong or I may have a different system. I'll appreciate it if someone would put down what should I do step by step to get it to work. Thanx.

Asus m50sa
Ubuntu 8.10

[hotweiss]

A) Open Terminal (Menu->Accessories), and type the following:

sudo nano brightness

B) Now paste the following in the Terminal window:

#!/bin/sh
echo 0 > /sys/devices/platform/asus-laptop/ls_switch

C) Hit Ctrl-O to save and then Ctrl-X to exit.

D) Now we will copy our new shell script to the appropriate directory, make it executable and add the following links by typing the following in Terminal:

sudo mv brightness /etc/init.d

and then

sudo chmod 755 /etc/init.d/brightness

and then

sudo update-rc.d brightness defaults 90

E) Reboot, and you will have regained control of your brightness level.

[An6oon]

Thanx a lot. Works perfectly.