Change from dual to single monitor and vice versa
You can change from dual screen to single screen (and vise versa) by using xrandr.
$ xrandr #this will display all available modes
$ xrandr -s 0 #replace zero with any mode that you want to change to
Thanks to Marcele on the Ubuntu Forums
To enable the other screen if the cable was’nt there on boot, I believe you have to:
$ sudo aticonfig –enable-monitor=lvds, tv
And then: Ctrl-Alt-BckSp
I will look into this later on, to see if it works.
Yeah btw, I’ve got an ATI-card