Public bug reported: 1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
$ lsb_release -rd Description: Ubuntu 14.04 LTS Release: 14.04 2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center ~$ apt-cache policy lightdm lightdm: Installed: 1.10.1-0ubuntu1 Candidate: 1.10.1-0ubuntu1 Version table: *** 1.10.1-0ubuntu1 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 1.10.0-0ubuntu3 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 3) What you expected to happen When switching users and entering the correct password no 'Invalid password' message should be displayed. 4) What happened instead When switching from one user to another after entering the password, I intermittently (although more often than not) get the 'Invalid password' message briefly before being taken to the desktop. Just to clarify, the correct password is being entered and the user is being taken to the desktop so this is really just an inconvenience. Also, I noticed that it is no longer possible to use the keyboard sequence Alt+W when the lock screen is on to switch users since upgrading to 14.04 - there doesn't seem to be a way to switch users using the keyboard from the lock screen in 14.04. Not sure what the proper channel is to address this. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: lightdm 1.10.1-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2 Uname: Linux 3.13.0-30-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 Date: Sat Jul 5 20:01:02 2014 ExecutablePath: /usr/sbin/lightdm InstallationDate: Installed on 2014-05-25 (41 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) ProcEnviron: TERM=linux PATH=(custom, no user) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: lightdm (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1338175 Title: Spurious 'Invalid password' message when switching users To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1338175/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs