I am from bug 1100456 and I have to say that it does not look like unity-only issue. Today I half-upgraded to the latest and greatest packages and got unityshell failing to start (and compiz depending on compiz-core that is not yet pushed to the archives) so I got a compiz- only session.
Running http://paste.ubuntu.com/1538829/ still tells me that any screen redraw triggers a full-screen XDamage event even when no unityshell is running. Are you sure bug 1100456 is a duplicate of this one? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1080947 Title: damageScreen() in UnityScreen::nuxDamageCompiz() severely hurts Unity performance To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1080947/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs