How would I tell if it is xscreensaver or xfce4-power-manager? The problem is still present in Quantal
$ lsb_release -rd Description: Ubuntu quantal (development branch) Release: 12.10 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/984778 Title: Screen saver keeps kicking in despite mouse activity To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lubuntu-meta/+bug/984778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs