Note that though this appears to be a continuation of an old bug, reading the earlier comments suggests that it was an issue with the ownership of .Xauthority. It seems that the new problem is not that but is related to the contents of the file.
-- 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/1036830 Title: Can't log in unless remove .Xauthority or use gdm Status in “lightdm” package in Ubuntu: Confirmed Bug description: On 8/13/2012 I updated ubuntu 12.10. Now when I try to log in the system flashes a black screen and then puts me back at the log in screen. Logging in as guest works. I tried adding a new user and cannot log in with that user either. I switched to gdm and logging in works fine. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xorg 1:7.7+1ubuntu1 ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1 Uname: Linux 3.5.0-10-generic x86_64 ApportVersion: 2.4-0ubuntu6 Architecture: amd64 Date: Tue Aug 14 13:24:06 2012 DistUpgraded: Fresh install DistroCodename: quantal DistroVariant: ubuntu GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:04a9] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MachineType: Dell Inc. Latitude E6220 ProcEnviron: LANGUAGE=en_US:en TERM=linux PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-10-generic root=UUID=94ff83ca-e880-49d3-8791-cdd2999ea806 ro quiet splash elevator=deadline vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg crash UpgradeStatus: No upgrade log present (probably fresh install) XorgConf: section "Device" Identifier "Card0" Driver "intel" Option "AccelMethod" "sna" EndSection dmi.bios.date: 05/17/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A08 dmi.board.name: 0D1CTR dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA08:bd05/17/2012:svnDellInc.:pnLatitudeE6220:pvr01:rvnDellInc.:rn0D1CTR:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6220 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu2 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.38-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.12.1.902-1ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~really6.14.4-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.19.0-1ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-1build1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1036830/+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