Tested now a bit further and it seems the problem is isolated to xfwm, I couldn't reproduce it in Unity or TWM. Running xfsettingsd alone with nothing else will produce a short spike of 1 second or so, running xfwm as well will make the problem worse, running the full xfwm4-session will give multiple seconds of unresponsivness.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1200074 Title: High CPU usage and unresponsivness when hotplugging a mouse To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1200074/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
