How to set and limit my resolution to 640x480

view story

http://askubuntu.com – How can I set and limit the resolution in Ubuntu 12 to 640x480 There's not much in the xorg.conf file anymore, so I'm guessing this is no longer the place to do it? I can't do it using the GUI either because it doesn't show me the 640x480 option. While setting the resolution the computer is connected to a normal screen but later it will be connected to a screen that only supports 640x480 and doesn't report its supported modes to the computer. The only thing in my xorg.conf (by default) is this: Section "Device" Identifier "Default Device" Option "NoLogo" "True (HowTos)