I rebooted into the non working kernel and using: lsmod|grep -E '[[:blank:]]i[0-9]+' I got nothing, so that confirms it. When I use that command and the x-server is working properly I get the same out put as Moritz. The results of dmesg|grep i915 are attached.
** Attachment added: "i915dmesgerrors" http://launchpadlibrarian.net/38634923/i915dmesgerrors -- [GM45] i810 kernel module doesn't load since version 2.6.31-17-generic-pae or greater https://bugs.launchpad.net/bugs/515470 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs