https://bugzilla.redhat.com/show_bug.cgi?id=462157 seems to be the same bug in Fedora. From the comments I gather that the jury is still out on whether it's an Xorg bug or a kernel bug. It also seems like it's currently closed, but never got fixed, which isn't encouraging.
-- Xorg randomly freezes (100% CPU) https://bugs.launchpad.net/bugs/345224 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
