this page http://www.debianadmin.com/ubuntu-edgy-upgrade-common-problems-with-solutions.html suggests for ati users:
First you need to remove the ATI drivers using the following command sudo apt-get remove xserver-xorg-driver-ati Install ATI Drivers using the following command sudo apt-get install xserver-xorg-video-ati the same probably works with xserver-xorg-driver-nv and xserver-xorg-video-nv -- xserver does not boot after upgrade from dapper to edgy / abi mismatch of nv nvidia driver https://launchpad.net/bugs/67272 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
