This appears to be a feature from the Power Manager rhythmbox plugin, and not a bug. Closing.
** Changed in: gnome-power-manager (Ubuntu) Status: New => Invalid -- Rhythmbox prevents shutdown dialog and suspend https://bugs.launchpad.net/bugs/252965 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs