Login fail for Admin user

[DFOXpro]

The case is:
After the 24/03/12 updates for ubuntu 12.04 my user (admin user) gets no login of Lightdm.
seeing the XorgLog i get this:

Mar 25 10:13:23 DFOXpro-ASUS-Desktop-Name lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "dfoxpro"
Mar 25 10:13:23 DFOXpro-ASUS-Desktop-Name lightdm: pam_unix(lightdm:auth): conversation failed
Mar 25 10:13:23 DFOXpro-ASUS-Desktop-Name lightdm: pam_unix(lightdm:auth): auth could not identify password for [dfoxpro]
Mar 25 10:13:23 DFOXpro-ASUS-Desktop-Name lightdm: pam_winbind(lightdm:auth): getting password (0x00000388)
Mar 25 10:13:23 DFOXpro-ASUS-Desktop-Name lightdm: pam_winbind(lightdm:auth): Could not retrieve user's password
Mar 25 10:13:23 DFOXpro-ASUS-Desktop-Name lightdm: pam_unix(lightdm:session): session opened for user lightdm by (uid=0)
Mar 25 10:13:23 DFOXpro-ASUS-Desktop-Name lightdm: pam_ck_connector(lightdm:session): nox11 mode, ignoring PAM_TTY :1
Mar 25 10:13:25 DFOXpro-ASUS-Desktop-Name lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "dfoxpro"
Mar 25 10:13:25 DFOXpro-ASUS-Desktop-Name dbus[927]: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.120" (uid=104 pid=3730 comm="/usr/lib/indicator-datetime/indicator-datetime-ser") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination=":1.15" (uid=0 pid=1496 comm="/usr/sbin/console-kit-daemon --no-daemon ")
Mar 25 10:13:29 DFOXpro-ASUS-Desktop-Name lightdm: pam_unix(lightdm:session): session closed for user lightdm
Mar 25 10:13:29 DFOXpro-ASUS-Desktop-Name lightdm: pam_unix(lightdm:session): session opened for user dfoxpro by (uid=0)
Mar 25 10:13:29 DFOXpro-ASUS-Desktop-Name lightdm: pam_ck_connector(lightdm:session): nox11 mode, ignoring PAM_TTY :1
Mar 25 10:13:30 DFOXpro-ASUS-Desktop-Name lightdm: pam_unix(lightdm:session): session opened for user lightdm by (uid=0)
Mar 25 10:13:30 DFOXpro-ASUS-Desktop-Name lightdm: pam_ck_connector(lightdm:session): nox11 mode, ignoring PAM_TTY :1
Mar 25 10:13:31 DFOXpro-ASUS-Desktop-Name lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "dfoxpro"
Mar 25 10:13:31 DFOXpro-ASUS-Desktop-Name dbus[927]: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.135" (uid=104 pid=3883 comm="/usr/lib/indicator-datetime/indicator-datetime-ser") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination=":1.15" (uid=0 pid=1496 comm="/usr/sbin/console-kit-daemon --no-daemon ")
Mar 25 10:13:33 DFOXpro-ASUS-Desktop-Name lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" was met by user "familia"
Mar 25 10:13:35 DFOXpro-ASUS-Desktop-Name lightdm: pam_unix(lightdm:session): session closed for user lightdm
Mar 25 10:17:01 DFOXpro-ASUS-Desktop-Name CRON[3954]: pam_unix(cron:session): session opened for user root by (uid=0)
Mar 25 10:17:01 DFOXpro-ASUS-Desktop-Name CRON[3954]: pam_unix(cron:session): session closed for user root

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: lightdm 1.1.9-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.95-0ubuntu1
Architecture: amd64
Date: Sun Mar 25 10:20:40 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
ProcEnviron:
 LANGUAGE=es_CO:es
 LANG=es_CO.UTF-8
 SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[DFOXpro (dfoxpro)]

This is in fact a Lightdm bug, using gdm works flawlessly

[Sebastien Bacher (seb128)]

Thank you for your bug report, could you add your /var/log/lightdm/lightdm.log to the bug after getting the issue as well as ~/.xsession-errors for the user you tried to log in to?

[DFOXpro (dfoxpro)]

lightdm log attached

[Sebastien Bacher (seb128)]

Could you add your .xsession-errors as well? The lightdm log suggests the session is correctly started from lightdm but exit later on

[DFOXpro (dfoxpro)]

i also look this file but i dnt see any error

[DFOXpro (dfoxpro)]

One more thing on the auth.log i see lightdm errors:

Mar 25 10:13:29 DFOXpro-ASUS-Desktop-Name lightdm: pam_unix(lightdm:session): session opened for user dfoxpro by (uid=0)
Mar 25 10:13:29 DFOXpro-ASUS-Desktop-Name lightdm: pam_ck_connector(lightdm:session): nox11 mode, ignoring PAM_TTY :1
Mar 25 10:13:30 DFOXpro-ASUS-Desktop-Name lightdm: pam_unix(lightdm:session): session opened for user lightdm by (uid=0)
Mar 25 10:13:30 DFOXpro-ASUS-Desktop-Name lightdm: pam_ck_connector(lightdm:session): nox11 mode, ignoring PAM_TTY :1
Mar 25 10:13:31 DFOXpro-ASUS-Desktop-Name lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "dfoxpro"
Mar 25 10:13:31 DFOXpro-ASUS-Desktop-Name dbus[927]: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.135" (uid=104 pid=3883 comm="/usr/lib/indicator-datetime/indicator-datetime-ser") interface="org.freedesktop.DBus.Properties" member="GetAll" error

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Peter Adams (praest76)]

I had this issue following an update. Turns out my .Xauthority file was 600 root:root. I gave it back to my user and was able to log in ok. Looks like something caused root to claim sole ownership.

[niknah (hankin0)]

.Xauthority permissions that was my problem too.

There a fix here with links to other duplicate bugs...
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/871667