I don't have the /var/log/Xorg.0.log anymore, this bug was reported in June, but here's my /etc/X11/xorg.conf file.
-- XServer Crashes with "Active ring not flushed" error. https://launchpad.net/bugs/50576 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
