Comment 17 for bug 222171

Okay, there were a couple of mistakes in mr. Turner's script.

ian@dash:~$ cat > /etc/modprobe.d/asus-backlight-workaround.conf
# Got this from Ubuntu bug 222171.
install asus_laptop /sbin/modprobe --ignore-install asus_laptop; sleep 2; echo 5 > /sys/devices/platform/asus_laptop/ls_level

I have an M51Vseries Asus, where I also made ls level 10, not 5 (full light) and also switched the ambient sensor completely off by adding this line to the above script.
echo 0 > /sys/devices/platform/asus_laptop/ls_switch

However, the funny thing about it is that while I was writing this message the screen suddenly went dim. For some reason the ambient sensor just turned on without warning, although yesterday I've worked for a long time and it was fine.

Something is definitely wrong with this module and, tbh, I am a bit tired of this problem.