>sudo gedit /etc/X11/xorg.conf</code>
and add the following line to the Device section (if it does not already exist). Include the following lines without '''[...]''':
<code>Section "Device... iver to adopt changes made to xorg.conf, type the following command:
<code>
sudo aticonfig --input=/etc/X11/x... orking due to "Composite" problem, check that the following is set in the /etc/X11/xorg.conf
<code>
Section "... it doesn't start up again when booting - add the following line at the beginning of /etc/modprobe.d/blacklis
