I have two monitors, one 1920x1200 and the other 1920x1080, and in 10.10 they were "separate". As in when I opened the display preferences they were shown as separate screens. Since installing (from scratch) 11.04 I instead have one giant 3840x1200 screen spread over the two monitors. Not a problem per se, except when I want to play full-screen games! When playing games I want them to be on the primary (1920x1200) monitor, but since the game only detects one screen I cant do that, even if I lower the resolution in-game.

I have a nVidia GTS 250 card, using nvidia-current driver (version 270.41.06), even though "Additional Drivers" reports the driver is "activated but not currently in use".

Is there a way to force the game to use only one of the monitors? Or make the game detect both monitors?