If I comment out "Load dri" and the DRI section in xorg.conf, I can avoid loading the i915 and drm kernel modules but unfortunatly the system still crashes on shutdown or logout when X is running.. so it seems to be a more general kernel bug.
-- consistent OOPS on logout, restart or shutdown with X running https://launchpad.net/bugs/58425 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs