I'm having this too. When I did a ps aux for screensaver, the following came up:
leon 1498 0.0 0.2 173104 8012 ? Ss Apr18 0:05 gnome-screensaver leon 1499 0.0 0.2 172612 7620 ? Ss Apr18 0:01 /usr/bin/gnome-screensaver -- unlock screen -dialog comes up twice https://bugs.launchpad.net/bugs/556255 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-screensaver in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs