crysman, starting with Ubuntu 13.10 the power button is managed by systemd/logind (default action is to shutdown the system, see /etc/systemd/logind.conf). As of now xfce4-power-manager is not able to inhibit these actions (bug 1222021) and the function to popup a dialog and ask the user might be still broken.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1116643 Title: Power button mode "ask" does not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfce4-power-manager/+bug/1116643/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs