If your seeing this bug on a system with an SSD, than this is most likely the result of https://bugs.launchpad.net/ubuntu/+source/libatasmart/+bug/445852. Please try the workaround documented there. That fixed the problem for me.
-- Series of GNOME errors upon startup https://bugs.launchpad.net/bugs/426965 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