I see the same on my ThinkPad T42 with the same Radeon Mobility M7 LW that Johan has. It doesn't happen quite 100% of the time, and if the server manages to start up, it works fine. If I start the server with startx rather than gdm, that doesn't crash, so this is somehow triggered by something gdm does.
** Changed in: xserver-xorg-video-ati (Ubuntu) Importance: Untriaged => High Status: Unconfirmed => Confirmed -- [Edgy] System freezes when loading X https://launchpad.net/bugs/54650 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs