Though this may turn out to have more to do with Ubuntu GNOME than GNOME, I thought I would file a report on this upstream anyway: https://bugzilla.gnome.org/show_bug.cgi?id=763231
** Bug watch added: GNOME Bug Tracker #763231 https://bugzilla.gnome.org/show_bug.cgi?id=763231 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553802 Title: Date and time jump around on locked screen when showing seconds (and also sometimes display strange shadows behind them) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-gnome/+bug/1553802/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs