lightdm freezes when logging in with password

[Omega-xis]

I've got a strange thing going on with my computer,
after boot I get a working lightdm that logs in my sister's account (without password), can launch a guest session. but when I try to loging on my own account (with password) I get a black screen followed by the lightdm unity greeter, trying to log in again will freeze lightdm entirely.
as A workaround, I start GDM from command line...

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: nvidia
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Thu May 3 09:51:33 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
ProcEnviron:
 LANGUAGE=nl_NL:en
 PATH=(custom, no user)
 LANG=nl_NL.UTF-8
 SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)

[Sebastien Bacher (seb128)]

Thank you for your bug report, could you go to a vt after hitting the issue and copy /var/log/lightdm/lightdm.log and ~/.xsession-errors to the bug?

[Omega-xis (nieknooijens)]

lightdm.log is added as attachment,
because I can only submit 1 attachment each time here is the ~/.xsession-errors

Xsession: X session started for niek at do mei 3 17:17:39 CEST 2012
localuser:niek being added to access control list
openConnection: connect: Bestand of map bestaat niet
cannot connect to brltty at :0
Setting IM through im-switch for locale=nl_NL.
Start IM through /home/niek/.xinput.d/nl_NL linked to /etc/X11/xinit/xinput.d/ibus.
gnome-session[3013]: WARNING: Could not parse desktop file /home/niek/.config/autostart/gshared.desktop: Het sleutelbestand bevat geen sleutel ‘Type’
gnome-session[3013]: WARNING: could not read /home/niek/.config/autostart/gshared.desktop

(ibus-daemon:3050): GLib-GIO-WARNING **: unknown control message type 1:2
GNOME_KEYRING_CONTROL=/tmp/keyring-fqQoMg
GNOME_KEYRING_PID=3115
GNOME_KEYRING_CONTROL=/tmp/keyring-fqQoMg
SSH_AUTH_SOCK=/tmp/keyring-fqQoMg/ssh
GNOME_KEYRING_CONTROL=/tmp/keyring-fqQoMg
SSH_AUTH_SOCK=/tmp/keyring-fqQoMg/ssh

(ibus-daemon:3050): GLib-GIO-WARNING **: unknown control message type 1:2
GNOME_KEYRING_CONTROL=/tmp/keyring-fqQoMg
SSH_AUTH_SOCK=/tmp/keyring-fqQoMg/ssh
GPG_AGENT_INFO=/tmp/keyring-fqQoMg/gpg:0:1
Checking if settings need to be migrated ...no
Checking if internal files need to be migrated ...yes
[LOG]: Moving Internal Files

(gnome-settings-daemon:3126): color-plugin-WARNING **: failed to get edid: unable to get EDID for output
[LOG]: Copying subdirectory from /home/niek/.compiz/session to /home/niek/.compiz-1/session
[LOG]: Copied file /home/niek/.compiz/session/10597b346c958134e4133605788171058400000018440060 to /home/niek/.compiz-1/session/10597b346c958134e4133605788171058400000018440060
[LOG]: Successfully moved internal files
Backend : gconf
Integration : true
Profile : unity
Adding plugins
Initializing core options...done
Initializing composite options...done
Initializing nautilus-gdu extension
Starting Dropbox...
(gnome-settings-daemon:3126): common-plugin-WARNING **: Key 0xff6a (keycodes: 146) with state 0x0 (resolved to 0x0) has no usable modifiers (usable modifiers are 0x140000ed)
** Message: applet now removed from the notification area
Initializing nautilus-dropbox 0.7.1
Initializing opengl options...done
Initializing decor options...done
Initializing move options...done
Initializing gnomecompat options...done
Initializing imgjpeg options...done
** Message: using fallback from indicator to GtkStatusIcon
Initializing grid options...done

(nm-applet:3159): GdkPixbuf-CRITICAL **: gdk_pixbuf_scale_simple: assertion `dest_width > 0' failed
Initializing place options...done
Initializing vpswitch options...done
Initializing resize options...done
Initializing mousepoll options...done
Initializing wobbly options...done
compiz (core) - Error: Plugin 'text' not loaded.

Initializing thumbnail options...done

(gnome-settings-daemon:3126): color-plugin-WARNING **: unable to get EDID for xrandr-default: unable to get EDID for output

(gnome-settings-daemon:3126): color-plugin-WARNING **: failed to reset xrandr-default gamma tables: gamma size is zero

(gnome-settings-daemon:3126): color-plugin-WARNING **: unable to get EDID for xrandr-default: unable to get ED...

[Sebastien Bacher (seb128)]

> because I can only submit 1 attachment each time here is the ~/.xsession-errors

well, it should be easy enough to add 2 files, could you do that? such long comments makes the bug harder to read

[Sebastien Bacher (seb128)]

is the session log from a broken login? ît seems a full session log with applications used (i.e gxine)

[Omega-xis (nieknooijens)]

something strange happened.
i switched the display manager to KDM (dpkg -configure)
after a reboot and logging in using KDM it started to ask all kinds of passwords for unlocking keyrings etc.
so I concluded that wasn't a huge success so I switched it back to lightdm and strangely the bug vanished....

so i'll mark it as invalid...