I am experiencing the same problem. My laptop's video chipset is an S3 Savage, which works fine with Dapper. In reconfiguring xserver-xorg, it makes no difference whether I select the 'vesa' or the 'savage' driver; either way the console totally hangs. I cannot even switch virtual consoles nor send CTRL+ALT+DEL to make the box reboot.
I can, however SSH in from another box and use a shell, but that's all that is possible. I originally upgraded from Dapper but today installed Edgy fresh (from Netboot). I suspect the problem is related to a recent patch to Xorg or the kernel, as things previously did work fine with Edgy on this notebook until kernel 2.6.17-8 was released. -- 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