Toshiba Satellite L645D screen brightness does not work onUbuntu 12.04

Question

I've installed Ubuntu 12.04 on my Toshiba Satellite L645D and the screen brightness does not work, any suggestions??? please help!!

Answer 1

You might want to edit your xorg.conf configuration. In a terminal, type:

sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.backup

This will make a backup of your xorg.conf file - just in case :) That being done, type:

gksudo gedit /etc/X11/xorg.conf

and under Section "Device" add the following line:

Option "RegistryDwords" "EnableBrightnessControl=1"

Save and reboot.

Perhaps this already does the trick. In that case, congratulations!