Ubuntu 12.04/12.10
2 IIyama ProLite E 2473 HDS monitors
Both connected (DVI) to MSI N450GTS Cyclone 1GB card
Working in native resolution (1920x1080)

When using the Nouveau driver everything works fine. The only problem is that the Nouveau driver is not as fast as the Nvidia driver and it does not support GL

When I install the nvidia driver it all seems to work fine. But trouble is alway's the same. At certain (random) point the computer freezes. Nothing works. Only a reboot. Most of the times its impossible to log in after that because Lightdm (also with GDM) freezes almost at first sight.

Does someone have a solution for this problem? I don't think its hardware related because Nouveau alway's works.