XGL crashed. The screen went black, no keyboard answer anymore. Then GDM restarted.
** Attachment added: "XGL crash report" http://librarian.launchpad.net/6492016/_usr_bin_Xgl.1000.crash -- xgl-crash https://launchpad.net/bugs/78425 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
