I think I'm having the same problem. It started happening shortly after upgrading from 12.04 LTS to 14.04 LTS. There are two user accounts on my system. One works fine. The other experiences this problem - hangs with only background image displayed after login. I've waited a half hour and nothing changes. None of the solutions I've found on the internet work (resetting Unity, reinstalling ubuntu-desktop, etc.) I'm guessing some configuration got borked during the upgrade, but I am no guru and have no idea how to track it down. If there's information I can provide that might help, I'll be happy to do so, but you may have to explain how to get it.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1283826 Title: lightdm hangs after updates Status in GDM: The Gnome Display Manager: New Status in Light Display Manager: New Status in “lightdm” package in Ubuntu: Confirmed Bug description: I've updated today my Trusy Thar installation. I can't login to Unity, with my account, or a guest account. Lightdm hangs after password input, or after I click on the Guest account. Also, I used to auto-login. Now it greets me with the screen where I must input my password. After inputing it, lightdm hangs and I can't login. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: lightdm 1.9.8-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-12.32-generic 3.13.4 Uname: Linux 3.13.0-12-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.13.2-0ubuntu5 Architecture: amd64 Date: Sun Feb 23 23:16:24 2014 InstallationDate: Installed on 2014-01-25 (29 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64+mac (20140115) LightdmConfig: [SeatDefaults] autologin-guest=false autologin-user=cristi autologin-user-timeout=0 autologin-session=lightdm-autologin SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/gdm/+bug/1283826/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp