And here is .xsession-errors. I have not tried with other users, but it only happens on one of my computers (both running 12.04). Please let me know if there is anything else you need.
** Attachment added: "xsession-errors" https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/997787/+attachment/3205138/+files/xsession-errors -- 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/997787 Title: double login required on power-up Status in “lightdm” package in Ubuntu: Incomplete Bug description: When the login screen appears, no matter which password I type, I am presented with the same login-screen again. On the second attempt, I am able to log in. The first time, it does not complain about wrong passwords.. It displays the login-screen again either way. This happens both on 11.10 and 12.04 for me. On 11.10, there was some garbage text on top of the login-screen the first time. This is gone on 12.04 On 12.04, the login sound (drums) is played once for each login. Specifics about release: uname -a: Linux oivind-pc 3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux lsb_release -rd Description: Ubuntu 12.04 LTS Release: 12.04 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: lightdm 1.2.1-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14 Uname: Linux 3.2.0-24-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.0.1-0ubuntu7 Architecture: amd64 Date: Thu May 10 22:23:58 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) ProcEnviron: LANGUAGE=en_US:en TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash 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/997787/+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