The logs don't show anything unexpected, but it does appear to have the same symptoms as in bug 851345. Doug, can you check if the lightdm process is running after the problem occurs and if dmesg shows it has crashed?
-- 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/863054 Title: random login without common admin user permissions Status in “lightdm” package in Ubuntu: Confirmed Bug description: This has shown up starting with daily from 09/27 where happened often, currently on install using daily from 0/29 updated where it happened just once so far out of 6 or so restarts Symptoms are: synaptic will fail to start from desktop icon nm-applet fails to start, shows no connection (but i am connected external drives can't be mounted a restart and or shutdown from session indicator will fail update-manager will not check for updates In all the above I have no permission to do so ~/.xession-errors is owned by root - attached ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: gnome-settings-daemon 3.2.0-0ubuntu3 ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4 Uname: Linux 3.0.0-11-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 1.23-0ubuntu2 Architecture: amd64 Date: Fri Sep 30 02:52:25 2011 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110929) ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-settings-daemon UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/863054/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
