Yes, it is. It happened to me again after enabling fglrx just after installing the operating system from scratch.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/747242 Title: Desktop visual corruption when swithing to guest session -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs