so far I found out that I need to configure the Xorg.conf to have DualView on my monitor. At this moment the screen is just duplicated. My Graphics Card is Matrox G550.
jannis@Ariel:/$ sudo Xorg -configure
Fatal server error: Server is already active for display 0 If this server is no longer running, remove /tmp/.X0-lock and start again.
Please consult the The X.Org Foundation support at http://wiki.x.org for help.
ddxSigGiveUp: Closing log
/etc/X11/xorg.conf doesn't exist..
Since I allready tried it a several months ago, lost my X configuration and needed to reinstall the OS I am terrified it can happen again.
Does anyone know what to do? Is there anyway to store the current/running configuration and restore it afterwards?