*** This bug is a duplicate of bug 1228570 ***
https://bugs.launchpad.net/bugs/1228570
I've been experiencing this error for a while too, and reading the
comments above I see that ssh -X was a component of the issue for a lot
of people. I frequently log into this computer via ssh -X. I hadn't
thought to consider that as a potential part of the issue, before.
Looking at a backup .Xauthority I made when I was clearing it out to log
in again, I see that there are a lot of magic cookies inside.
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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
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