https://bugs.freedesktop.org/show_bug.cgi?id=90668
--- Comment #2 from net@ianni.de --- There is no Xorg.log, but I found that this should provide the same information: journalctl -b _COMM=gdm-x-session (if not, I don't know how I get it) output: http://paste.fedoraproject.org/225830/43268051/