*** This bug is a duplicate of bug 944736 ***
https://bugs.launchpad.net/bugs/944736
Had same problem. The cause was that ~/.ICEauthority was owned by root:root.
Fixed it by doing
$ sudo chown user:user /home/user/.ICEauthority
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https://bugs.launchpad.net/bugs/944784
Title:
ligthdm immediately returns to greeter after succesful login
Status in “lightdm” package in Ubuntu:
Confirmed
Bug description:
On ubuntu 12.04 beta ligthdm immediately returns from session to greeter
after succesful login.
This came with a bunch of updates today. Had to switch to gdm to log into a
session at all.
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.1.4, UID=0 PID=3504
[+0.00s] DEBUG: Loaded configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: Registered seat module xlocal
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Adding default seat
[+0.00s] DEBUG: Starting seat
[+0.00s] DEBUG: Starting new display for greeter
[+0.00s] DEBUG: Starting local X display
[+0.00s] DEBUG: Using VT 7
[+0.00s] DEBUG: Activating VT 7
[+0.01s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+0.01s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+0.01s] DEBUG: Launching X Server
[+0.01s] DEBUG: Launching process 3508: /usr/bin/X :0 -auth
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.01s] DEBUG: Waiting for ready signal from X server :0
[+0.01s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.01s] DEBUG: Registering seat with bus path
/org/freedesktop/DisplayManager/Seat0
[+0.29s] DEBUG: Got signal 10 from process 3508
[+0.29s] DEBUG: Got signal from X server :0
[+0.29s] DEBUG: Connecting to XServer :0
[+0.29s] DEBUG: Starting greeter
[+0.29s] DEBUG: Started session 3515 with service 'lightdm', username
'lightdm'
[+0.34s] DEBUG: Session 3515 authentication complete with return value 0:
Success
[+0.34s] DEBUG: Greeter authorized
[+0.34s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log
[+0.34s] DEBUG: Session 3515 running command
/usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+0.45s] DEBUG: Greeter connected version=1.1.4
[+0.45s] DEBUG: Greeter connected, display is ready
[+0.45s] DEBUG: New display ready, switching to it
[+0.45s] DEBUG: Activating VT 7
[+0.78s] DEBUG: Greeter start authentication for hub
[+0.78s] DEBUG: Started session 3629 with service 'lightdm', username 'hub'
[+0.79s] DEBUG: Session 3629 got 1 message(s) from PAM
[+0.79s] DEBUG: Prompt greeter with 1 message(s)
[+23.45s] DEBUG: Continue authentication
[+23.48s] DEBUG: Session 3629 authentication complete with return value 0:
Success
[+23.48s] DEBUG: Authenticate result for user hub: Success
[+23.48s] DEBUG: User hub authorized
[+23.48s] DEBUG: Greeter requests session ubuntu
[+23.48s] DEBUG: Using session ubuntu
[+23.48s] DEBUG: Stopping greeter
[+23.48s] DEBUG: Session 3515: Sending SIGTERM
[+23.52s] DEBUG: Session 3515 exited with return value 0
[+23.52s] DEBUG: Greeter quit
[+23.52s] DEBUG: Dropping privileges to uid 1000
[+23.53s] DEBUG: Restoring privileges
[+23.53s] DEBUG: Dropping privileges to uid 1000
[+23.53s] DEBUG: Writing /home/hub/.dmrc
[+23.53s] DEBUG: Restoring privileges
[+23.53s] DEBUG: Starting session ubuntu as user hub
[+23.53s] DEBUG: Session 3629 running command /usr/sbin/lightdm-session
/usr/bin/gnome-session --session=ubuntu
[+23.56s] DEBUG: Registering session with bus path
/org/freedesktop/DisplayManager/Session0
[+23.56s] DEBUG: Session 3629 exited with return value 1
[+23.56s] DEBUG: User session quit
[+23.56s] DEBUG: Stopping display
[+23.56s] DEBUG: Sending signal 15 to process 3508
[+23.77s] DEBUG: Process 3508 exited with return value 0
[+23.77s] DEBUG: X server stopped
[+23.77s] DEBUG: Removing X server authority /var/run/lightdm/root/:0
[+23.77s] DEBUG: Releasing VT 7
[+23.77s] DEBUG: Display server stopped
[+23.77s] DEBUG: Display stopped
[+23.77s] DEBUG: Active display stopped, switching to greeter
[+23.77s] DEBUG: Switching to greeter
[+23.77s] DEBUG: Starting new display for greeter
[+23.77s] DEBUG: Starting local X display
[+23.77s] DEBUG: Using VT 7
[+23.77s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+23.77s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+23.77s] DEBUG: Launching X Server
[+23.77s] DEBUG: Launching process 3825: /usr/bin/X :0 -auth
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+23.77s] DEBUG: Waiting for ready signal from X server :0
[+24.10s] DEBUG: Got signal 10 from process 3825
[+24.10s] DEBUG: Got signal from X server :0
[+24.10s] DEBUG: Connecting to XServer :0
[+24.10s] DEBUG: Starting greeter
[+24.10s] DEBUG: Started session 3829 with service 'lightdm', username
'lightdm'
[+24.12s] DEBUG: Session 3829 authentication complete with return value 0:
Success
[+24.12s] DEBUG: Greeter authorized
[+24.12s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log
[+24.12s] DEBUG: Session 3829 running command
/usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+24.22s] DEBUG: Greeter connected version=1.1.4
[+24.22s] DEBUG: Greeter connected, display is ready
[+24.22s] DEBUG: New display ready, switching to it
[+24.22s] DEBUG: Activating VT 7
[+24.22s] DEBUG: Stopping greeter display being switched from
[+24.61s] DEBUG: Greeter start authentication for hub
[+24.62s] DEBUG: Started session 3897 with service 'lightdm', username 'hub'
[+24.62s] DEBUG: Session 3897 got 1 message(s) from PAM
[+24.62s] DEBUG: Prompt greeter with 1 message(s)
[+114.51s] DEBUG: Continue authentication
[+114.53s] DEBUG: Session 3897 authentication complete with return value 0:
Success
[+114.53s] DEBUG: Authenticate result for user hub: Success
[+114.53s] DEBUG: User hub authorized
[+114.54s] DEBUG: Greeter requests session ubuntu
[+114.54s] DEBUG: Using session ubuntu
[+114.54s] DEBUG: Stopping greeter
[+114.54s] DEBUG: Session 3829: Sending SIGTERM
[+114.58s] DEBUG: Session 3829 exited with return value 0
[+114.58s] DEBUG: Greeter quit
[+114.59s] DEBUG: Dropping privileges to uid 1000
[+114.59s] DEBUG: Restoring privileges
[+114.59s] DEBUG: Dropping privileges to uid 1000
[+114.59s] DEBUG: Writing /home/hub/.dmrc
[+114.59s] DEBUG: Restoring privileges
[+114.60s] DEBUG: Starting session ubuntu as user hub
[+114.60s] DEBUG: Session 3897 running command /usr/sbin/lightdm-session
/usr/bin/gnome-session --session=ubuntu
[+114.62s] DEBUG: Registering session with bus path
/org/freedesktop/DisplayManager/Session1
[+114.63s] DEBUG: Session 3897 exited with return value 1
[+114.63s] DEBUG: User session quit
[+114.63s] DEBUG: Stopping display
[+114.63s] DEBUG: Sending signal 15 to process 3825
[+114.85s] DEBUG: Process 3825 exited with return value 0
[+114.85s] DEBUG: X server stopped
[+114.85s] DEBUG: Removing X server authority /var/run/lightdm/root/:0
[+114.85s] DEBUG: Releasing VT 7
[+114.85s] DEBUG: Display server stopped
[+114.85s] DEBUG: Display stopped
[+114.85s] DEBUG: Active display stopped, switching to greeter
[+114.85s] DEBUG: Switching to greeter
[+114.85s] DEBUG: Starting new display for greeter
[+114.85s] DEBUG: Starting local X display
[+114.85s] DEBUG: Using VT 7
[+114.85s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+114.85s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+114.85s] DEBUG: Launching X Server
[+114.85s] DEBUG: Launching process 4181: /usr/bin/X :0 -auth
/var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+114.85s] DEBUG: Waiting for ready signal from X server :0
[+115.13s] DEBUG: Got signal 10 from process 4181
[+115.13s] DEBUG: Got signal from X server :0
[+115.13s] DEBUG: Connecting to XServer :0
[+115.13s] DEBUG: Starting greeter
[+115.13s] DEBUG: Started session 4185 with service 'lightdm', username
'lightdm'
[+115.15s] DEBUG: Session 4185 authentication complete with return value 0:
Success
[+115.15s] DEBUG: Greeter authorized
[+115.15s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log
[+115.15s] DEBUG: Session 4185 running command
/usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+115.25s] DEBUG: Greeter connected version=1.1.4
[+115.25s] DEBUG: Greeter connected, display is ready
[+115.25s] DEBUG: New display ready, switching to it
[+115.25s] DEBUG: Activating VT 7
[+115.25s] DEBUG: Stopping greeter display being switched from
[+115.65s] DEBUG: Greeter start authentication for hub
[+115.65s] DEBUG: Started session 4255 with service 'lightdm', username 'hub'
[+115.66s] DEBUG: Session 4255 got 1 message(s) from PAM
[+115.66s] DEBUG: Prompt greeter with 1 message(s)
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