I am not sure about the package name but I suspect it is "gnome- screensaver" so adding package in bug.
** Package changed: ubuntu => gnome-screensaver (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1249752 Title: Unlock screen were not accepting the password after it has been locked for 3-4 hours. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1249752/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
