I have this problem also. However, it all started when I installed the xscreensaver package from the package manager. I did this so that I would be able to configure my screensavers. Since then, I have removed xscreensaver, and reinstalled gnome-screensaver, but it still does not work. Screensavers do not launch when I am idle, nor does locking the computer work.
-- gnome-screensaver started delayed in session https://bugs.launchpad.net/bugs/35211 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a direct subscriber. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs