This continues to bite me on 14.04. I have the newest unity installed:
exarkun@phonon:~$ sudo apt-show-versions unity unity:amd64/trusty-updates 7.2.3+14.04.20140826-0ubuntu1 uptodate It has been installed since Nov 7: exarkun@phonon:~$ grep 7.2.3+14.04.20140826-0ubuntu1 /var/log/dpkg.log.1 | grep installed 2014-11-07 11:56:16 status installed unity-services:amd64 7.2.3+14.04.20140826-0ubuntu1 2014-11-07 11:56:16 status installed libunity-core-6.0-9:amd64 7.2.3+14.04.20140826-0ubuntu1 2014-11-07 11:56:16 status installed unity:amd64 7.2.3+14.04.20140826-0ubuntu1 I have rebooted since installing it (9 days ago): exarkun@phonon:~$ uptime 09:15:48 up 9 days, 18:32, 3 users, load average: 0.24, 0.44, 0.50 More than 9 days have passed since Nov 7: exarkun@phonon:~$ date Mon Dec 1 09:15:49 EST 2014 -- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1311316 Title: After locking screen there is no input field to type password for unlock Status in Unity: Fix Committed Status in Unity 7.2 series: In Progress Status in unity package in Ubuntu: Fix Released Bug description: Sometimes (but not always) after locking the screen there is the situation not having any input field where I can type the password to unlock the session again. The shaded gray area simply does not have the input field. I can't do anything, I have to switch to text console and stop/start lightdm service to cure the problem loosing all of my session :( ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: unity 7.2.0+14.04.20140416-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic i686 ApportVersion: 2.14.1-0ubuntu3 Architecture: i386 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CurrentDesktop: Unity Date: Tue Apr 22 22:17:57 2014 InstallationDate: Installed on 2012-03-03 (780 days ago) InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) SourcePackage: unity UpgradeStatus: Upgraded to trusty on 2013-10-18 (186 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1311316/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp