Dual Monitor With Ubuntu

lspci to get the graphics card info (or look it up in /etc/X11/xorg.conf)

There were instructions at:
http://intellinuxgraphics.org/dualhead.html


I had to modify xorg.conf in /etc/X11 so that screen has virtual size big enough to hold both your screen resolutions (for me 2560 x 2048)

then I ran

xrandr --ouput VGA --right-of LVDS