I had a similar problem: upgrade my kubuntu dapper to edgy, and then Xorg complained about unavailable drivers.
I fixed it by running: sudo dpkg-reconfigure xserver-xorg and selected 'nvidia' intead of 'nv' in the driver section. -- dapper -> edgy upgrade breaks X https://launchpad.net/bugs/68430 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
