This bug still exists in 2018!!!!!!! Got this on 16.04 and lost all of my saved work !!!!!
FIX THIS -- 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/1590661 Title: Unable to unlock: "Time has expired" Status in gnome-screensaver package in Ubuntu: Confirmed Bug description: Sometimes when coming back after locking the screen I am unable to unlock. The login box on the screen has a disabled password input field with the buttons also disabled. Except for the mouse, the entire screen is frozen. Even the time in the top of the screen stops going. The only way to continue is to move to a tty (Ctrl-Alt-F1), log in and kill gnome-screensaver. Since the time also stops going I have deduced that this seems to happen on days and times that correspond to when the cleaners are here. Because of this I speculate that they accidentally press some keys, including the enter key. This of course fails to unlock and after a certain timeout it then proceeds to freeze. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: gnome-screensaver 3.6.1-7ubuntu4 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: GNOME Date: Thu Jun 9 08:59:15 2016 GnomeSessionIdleInhibited: No GnomeSessionInhibitors: None GsettingsGnomeSession: org.gnome.desktop.session session-name 'ubuntu' org.gnome.desktop.session idle-delay uint32 300 InstallationDate: Installed on 2016-05-27 (12 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) SourcePackage: gnome-screensaver UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1590661/+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
