Seems like it was https://bugzilla.gnome.org/show_bug.cgi?id=658583 and got fixed in GNOME 3.2
** Summary changed: - gnome-screensaver crashed with SIGSEGV + gnome-screensaver crashed with SIGSEGV in update_clock() ** Visibility changed to: Public ** Bug watch added: GNOME Bug Tracker #658583 https://bugzilla.gnome.org/show_bug.cgi?id=658583 ** Package changed: gnome-screensaver (Ubuntu) => gnome-desktop3 (Ubuntu) ** Changed in: gnome-desktop3 (Ubuntu) Importance: Undecided => High ** Changed in: gnome-desktop3 (Ubuntu) Status: New => Fix Released ** Also affects: gnome-desktop via https://bugzilla.gnome.org/show_bug.cgi?id=658583 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/854989 Title: gnome-screensaver crashed with SIGSEGV in update_clock() To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-desktop/+bug/854989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs