I have been playing around and I have found that the nv driver causes the xserver to fail. I successfully tried using vesa and vga drivers to launch X.
** Tags added: edgy nv xserver -- X server fails after upgrade Dapper > Edgy https://launchpad.net/bugs/58326 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs