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 Desktop Packages, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/1249752 Title: Unlock screen were not accepting the password after it has been locked for 3-4 hours. Status in “gnome-screensaver” package in Ubuntu: New Bug description: I have locked the ubuntu screen using Alt+Ctrl+l for 3-4 hours. After that I was trying to login to system or trying to unlock the screen but it was not accepting any characters on ulock screen. It was showing that Caps Lock is on or off when I reset the Caps Lock but it was not allowing me to enter the password. Touchpad was working fine as I was able to click on unlock button even keyboard is working fine as I was able to switch to different terminals (tty). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1249752/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp