I was told that packages affected by this issue may be systemd-services and/or policykit, but I don't know enough about it to add additional bug tasks. Hopefully someone else does. :)
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1300658 Title: [Regression] Computer should NOT shutdown from Guest session or Standard user session while an Administrator user session is still logged in Status in “lightdm” package in Ubuntu: Confirmed Bug description: Computer shouldn't shutdown/restart from a Guest session or from a Standard user session while there is still an Administrator user session logged in. This is a major regression from Ubuntu 12.04. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: lightdm 1.9.13-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7 Uname: Linux 3.13.0-20-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Tue Apr 1 10:33:39 2014 InstallationDate: Installed on 2014-03-08 (23 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140304) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1300658/+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