High X CPU bugs are almost always bugs in clients rather than a bug in X. See https://wiki.ubuntu.com/X/Troubleshooting/HighCPU for help in diagnosing the problem.
** Changed in: xorg (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/751477 Title: Xorg uses excessive CPU -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs