root@EV2:~# cat /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.2.1, UID=0 PID=9641
[+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 automatic login as user linaro
[+0.00s] DEBUG: Starting local X display
[+0.01s] DEBUG: Using VT 7
[+0.02s] DEBUG: Activating VT 7
[+0.02s] WARNING: Error using VT_ACTIVATE 7 on /dev/console: Invalid argument
[+0.02s] WARNING: Error using VT_WAITACTIVE 7 on /dev/console: Invalid argument
[+0.02s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+0.03s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+0.03s] DEBUG: Launching X Server
[+0.03s] DEBUG: Launching process 9644: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.03s] DEBUG: Waiting for ready signal from X server :0
[+0.05s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.05s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.74s] DEBUG: Got signal 10 from process 9644
[+0.74s] DEBUG: Got signal from X server :0
[+0.74s] DEBUG: Connecting to XServer :0
[+0.75s] DEBUG: Automatically logging in user linaro
[+0.75s] DEBUG: Started session 9649 with service 'lightdm-autologin', username 'linaro'
[+0.87s] DEBUG: Session 9649 authentication complete with return value 0: Success
[+0.87s] DEBUG: Autologin user linaro authorized
[+0.93s] DEBUG: Autologin using session ubuntu-2d
[+0.98s] DEBUG: Dropping privileges to uid 1000
[+0.98s] DEBUG: Restoring privileges
[+1.01s] DEBUG: Dropping privileges to uid 1000
[+1.01s] DEBUG: Writing /home/linaro/.dmrc
[+1.01s] DEBUG: Restoring privileges
[+1.02s] DEBUG: Starting session ubuntu-2d as user linaro
[+1.02s] DEBUG: Session 9649 running command /usr/sbin/lightdm-session gnome-session --session=ubuntu-2d
[+1.12s] DEBUG: New display ready, switching to it
[+1.12s] DEBUG: Activating VT 7
[+1.12s] WARNING: Error using VT_ACTIVATE 7 on /dev/console: Invalid argument
[+1.12s] WARNING: Error using VT_WAITACTIVE 7 on /dev/console: Invalid argument
[+1.13s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+1.14s] DEBUG: Session 9649 exited with return value 1
[+1.14s] DEBUG: User session quit
[+1.14s] DEBUG: Stopping display
[+1.14s] DEBUG: Sending signal 15 to process 9644
[+1.39s] DEBUG: Process 9644 exited with return value 0
[+1.39s] DEBUG: X server stopped
[+1.39s] DEBUG: Removing X server authority /var/run/lightdm/root/:0
[+1.39s] DEBUG: Releasing VT 7
[+1.39s] DEBUG: Display server stopped
[+1.39s] DEBUG: Display stopped
[+1.39s] DEBUG: Active display stopped, switching to greeter
[+1.39s] DEBUG: Switching to greeter
[+1.39s] DEBUG: Starting new display for greeter
[+1.39s] DEBUG: Starting local X display
[+1.39s] DEBUG: Using VT 7
[+1.39s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+1.39s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+1.39s] DEBUG: Launching X Server
[+1.39s] DEBUG: Launching process 9671: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+1.39s] DEBUG: Waiting for ready signal from X server :0
[+2.08s] DEBUG: Got signal 10 from process 9671
[+2.08s] DEBUG: Got signal from X server :0
[+2.08s] DEBUG: Connecting to XServer :0
[+2.13s] DEBUG: Starting greeter
[+2.13s] DEBUG: Started session 9674 with service 'lightdm', username 'lightdm'
[+2.25s] DEBUG: Session 9674 authentication complete with return value 0: Success
[+2.25s] DEBUG: Greeter authorized
[+2.25s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log
[+2.25s] DEBUG: Session 9674 running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+3.17s] DEBUG: Greeter connected version=1.2.1
[+3.17s] DEBUG: Greeter connected, display is ready
[+3.17s] DEBUG: New display ready, switching to it
[+3.17s] DEBUG: Activating VT 7
[+3.17s] WARNING: Error using VT_ACTIVATE 7 on /dev/console: Invalid argument
[+3.17s] WARNING: Error using VT_WAITACTIVE 7 on /dev/console: Invalid argument
[+3.17s] DEBUG: Stopping greeter display being switched from
[+7.11s] DEBUG: Greeter start authentication for linaro
[+7.11s] DEBUG: Started session 9729 with service 'lightdm', username 'linaro'
[+7.15s] DEBUG: Session 9729 got 1 message(s) from PAM
[+7.15s] DEBUG: Prompt greeter with 1 message(s)
[+9.14s] DEBUG: Session 9674 exited with return value 0
[+9.14s] DEBUG: Greeter quit
[+9.14s] DEBUG: Failed to start greeter
[+9.14s] DEBUG: Stopping display
[+9.14s] DEBUG: Sending signal 15 to process 9671
[+9.23s] DEBUG: Greeter closed communication channel
[+9.40s] DEBUG: Process 9671 exited with return value 0
[+9.40s] DEBUG: X server stopped
[+9.40s] DEBUG: Removing X server authority /var/run/lightdm/root/:0
[+9.40s] DEBUG: Releasing VT 7
[+9.40s] DEBUG: Display server stopped
[+9.40s] DEBUG: Display stopped
[+9.40s] DEBUG: Active display stopped, switching to greeter
[+9.40s] DEBUG: Switching to greeter
[+9.40s] DEBUG: Starting new display for greeter
[+9.40s] DEBUG: Starting local X display
[+9.40s] DEBUG: Using VT 7
[+9.40s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+9.40s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+9.40s] DEBUG: Launching X Server
[+9.40s] DEBUG: Launching process 9774: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+9.40s] DEBUG: Waiting for ready signal from X server :0
[+10.11s] DEBUG: Got signal 10 from process 9774
[+10.11s] DEBUG: Got signal from X server :0
[+10.11s] DEBUG: Connecting to XServer :0
[+10.12s] DEBUG: Starting greeter
[+10.12s] DEBUG: Started session 9777 with service 'lightdm', username 'lightdm'
[+10.25s] DEBUG: Session 9777 authentication complete with return value 0: Success
[+10.25s] DEBUG: Greeter authorized
[+10.25s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log
[+10.25s] DEBUG: Session 9777 running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+11.08s] DEBUG: Greeter connected version=1.2.1
[+11.08s] DEBUG: Greeter connected, display is ready
[+11.08s] DEBUG: New display ready, switching to it
[+11.08s] DEBUG: Activating VT 7
[+11.08s] WARNING: Error using VT_ACTIVATE 7 on /dev/console: Invalid argument
[+11.08s] WARNING: Error using VT_WAITACTIVE 7 on /dev/console: Invalid argument
[+11.08s] DEBUG: Stopping greeter display being switched from
[+17.35s] DEBUG: Greeter start authentication for linaro
[+17.35s] DEBUG: Started session 9837 with service 'lightdm', username 'linaro'
[+17.43s] DEBUG: Session 9837 got 1 message(s) from PAM
[+17.43s] DEBUG: Prompt greeter with 1 message(s)
[+19.18s] DEBUG: Session 9777 exited with return value 0
[+19.18s] DEBUG: Greeter quit
[+19.18s] DEBUG: Failed to start greeter
[+19.18s] DEBUG: Stopping display
[+19.18s] DEBUG: Sending signal 15 to process 9774
[+19.37s] DEBUG: Greeter closed communication channel
[+19.43s] DEBUG: Process 9774 exited with return value 0
[+19.43s] DEBUG: X server stopped
[+19.43s] DEBUG: Removing X server authority /var/run/lightdm/root/:0
[+19.43s] DEBUG: Releasing VT 7
[+19.43s] DEBUG: Display server stopped
[+19.43s] DEBUG: Display stopped
[+19.43s] DEBUG: Active display stopped, switching to greeter
[+19.43s] DEBUG: Switching to greeter
[+19.43s] DEBUG: Starting new display for greeter
[+19.43s] DEBUG: Starting local X display
[+19.43s] DEBUG: Using VT 7
[+19.43s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+19.43s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+19.43s] DEBUG: Launching X Server
[+19.43s] DEBUG: Launching process 9875: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+19.43s] DEBUG: Waiting for ready signal from X server :0
[+20.13s] DEBUG: Got signal 10 from process 9875
[+20.13s] DEBUG: Got signal from X server :0
[+20.13s] DEBUG: Connecting to XServer :0
[+20.14s] DEBUG: Starting greeter
[+20.16s] DEBUG: Started session 9878 with service 'lightdm', username 'lightdm'
[+20.27s] DEBUG: Session 9878 authentication complete with return value 0: Success
[+20.27s] DEBUG: Greeter authorized
[+20.27s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log
[+20.27s] DEBUG: Session 9878 running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+21.14s] DEBUG: Greeter connected version=1.2.1
[+21.14s] DEBUG: Greeter connected, display is ready
[+21.14s] DEBUG: New display ready, switching to it
[+21.14s] DEBUG: Activating VT 7
[+21.14s] WARNING: Error using VT_ACTIVATE 7 on /dev/console: Invalid argument
[+21.14s] WARNING: Error using VT_WAITACTIVE 7 on /dev/console: Invalid argument
[+21.14s] DEBUG: Stopping greeter display being switched from
[+25.24s] DEBUG: Greeter start authentication for linaro
[+25.25s] DEBUG: Started session 9936 with service 'lightdm', username 'linaro'
[+25.30s] DEBUG: Session 9936 got 1 message(s) from PAM
[+25.30s] DEBUG: Prompt greeter with 1 message(s)
[+28.14s] DEBUG: Greeter closed communication channel
[+28.14s] DEBUG: Session 9878 exited with return value 0
[+28.14s] DEBUG: Greeter quit
[+28.14s] DEBUG: Failed to start greeter
[+28.14s] DEBUG: Stopping display
[+28.14s] DEBUG: Sending signal 15 to process 9875
[+28.41s] DEBUG: Process 9875 exited with return value 0
[+28.41s] DEBUG: X server stopped
[+28.41s] DEBUG: Removing X server authority /var/run/lightdm/root/:0
[+28.41s] DEBUG: Releasing VT 7
[+28.41s] DEBUG: Display server stopped
[+28.41s] DEBUG: Display stopped
[+28.41s] DEBUG: Active display stopped, switching to greeter
[+28.41s] DEBUG: Switching to greeter
[+28.41s] DEBUG: Starting new display for greeter
[+28.41s] DEBUG: Starting local X display
[+28.41s] DEBUG: Using VT 7
[+28.41s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+28.41s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+28.41s] DEBUG: Launching X Server
[+28.41s] DEBUG: Launching process 9975: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+28.41s] DEBUG: Waiting for ready signal from X server :0
[+29.53s] DEBUG: Got signal 10 from process 9975
[+29.53s] DEBUG: Got signal from X server :0
[+29.53s] DEBUG: Connecting to XServer :0
[+29.54s] DEBUG: Starting greeter
[+29.54s] DEBUG: Started session 9978 with service 'lightdm', username 'lightdm'
[+29.66s] DEBUG: Session 9978 authentication complete with return value 0: Success
[+29.66s] DEBUG: Greeter authorized
[+29.66s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log
[+29.66s] DEBUG: Session 9978 running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+30.05s] DEBUG: Got signal 15 from process 1
[+30.05s] DEBUG: Caught Terminated signal, shutting down
[+30.05s] DEBUG: Stopping display manager
[+30.05s] DEBUG: Stopping seat
[+30.05s] DEBUG: Stopping display
[+30.05s] DEBUG: Session 9978: Sending SIGTERM
[+30.86s] DEBUG: Greeter closed communication channel
[+30.86s] DEBUG: Session 9978 terminated with signal 15
[+30.86s] DEBUG: Greeter quit
[+30.86s] DEBUG: Sending signal 15 to process 9975
[+31.16s] DEBUG: Process 9975 exited with return value 0
[+31.16s] DEBUG: X server stopped
[+31.16s] DEBUG: Removing X server authority /var/run/lightdm/root/:0
[+31.16s] DEBUG: Releasing VT 7
[+31.16s] DEBUG: Display server stopped
[+31.16s] DEBUG: Display stopped
[+31.16s] DEBUG: Seat stopped
[+31.16s] DEBUG: Display manager stopped
[+31.16s] DEBUG: Stopping daemon
[+31.17s] DEBUG: Exiting with return value 0

root@EV2:~# cat /var/log/lightdm/x-0-greeter.log.old
Activating service name='org.a11y.atspi.Registry'
[+0.00s] DEBUG: unity-greeter.vala:816: Starting unity-greeter 0.2.8 UID=104 LANG=C.UTF-8
[+0.00s] DEBUG: unity-greeter.vala:819: Setting cursor
[+0.02s] DEBUG: unity-greeter.vala:823: Creating background surface
[+0.02s] DEBUG: unity-greeter.vala:826: Loading command line options
[+0.02s] DEBUG: unity-greeter.vala:854: Setting GTK+ settings
Successfully activated service 'org.a11y.atspi.Registry'

** (at-spi2-registryd:9912): WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files

** (at-spi2-registryd:9912): WARNING **: Unable to register client with session manager
[+0.36s] DEBUG: unity-greeter.vala:877: Creating Unity Greeter
[+0.36s] DEBUG: Connecting to display manager...
[+0.36s] DEBUG: Wrote 17 bytes to daemon
[+0.37s] DEBUG: Read 8 bytes from daemon
[+0.37s] DEBUG: Read 123 bytes from daemon
[+0.37s] DEBUG: Connected version=1.2.1 default-session=ubuntu-2d show-manual-login=false hide-users=false has-guest-account=true
[+0.81s] WARNING: unity-greeter.vala:130: Failed to load state from /var/lib/lightdm/.cache/unity-greeter/state: Key file contains line '@0I' which is not a key-value pair, group, or comment

[+1.31s] DEBUG: menubar.vala:318: LANG=C.UTF-8 LANGUAGE=(null)
[+2.21s] CRITICAL: g_error_free: assertion `error != NULL' failed
[+2.22s] DEBUG: get entries
[+2.23s] DEBUG: menubar.vala:511: Adding indicator object 0xf99c4 at position 0
[+2.27s] DEBUG: Evaluating bitmask for '%H:%M'
[+2.27s] DEBUG: Checking against 1 possible times
[+2.32s] DEBUG: Guessing max time width: 36
[+2.32s] DEBUG: get entries
[+2.32s] DEBUG: menubar.vala:511: Adding indicator object 0x1e781c at position 1
[+2.33s] WARNING: IndicatorObject class does not have an accessible description.
[+2.38s] WARNING: IndicatorObject class does not have an accessible description.
[+2.38s] DEBUG: get entries
[+2.38s] DEBUG: get entries
[+2.38s] DEBUG: menubar.vala:511: Adding indicator object 0x74914 at position 2
[+2.38s] DEBUG: menubar.vala:335: LANG=C.UTF-8 LANGUAGE=(null)
[+2.43s] DEBUG: Loaded session /usr/share/xsessions/ubuntu.desktop (Ubuntu, This session logs you into Ubuntu)
[+2.44s] DEBUG: Ignoring session /usr/share/xsessions/gnome-shell.desktop
[+2.44s] DEBUG: Loaded session /usr/share/xsessions/ubuntu-2d.desktop (Ubuntu 2D, This session logs you into Ubuntu 2D Mode)
[+2.44s] DEBUG: Ignoring session /usr/share/xsessions/gnome.desktop
[+2.44s] DEBUG: session-chooser.vala:42: Adding session ubuntu (Ubuntu)
[+2.44s] DEBUG: session-chooser.vala:42: Adding session ubuntu-2d (Ubuntu 2D)
[+3.63s] DEBUG: Setting keyboard layout to 'us'
[+3.83s] DEBUG: main-window.vala:98: Screen is 800x480 pixels
[+3.83s] DEBUG: main-window.vala:104: Monitor 0 is 800x480 pixels at 0,0
[+3.87s] DEBUG: Loading users from org.freedesktop.Accounts
[+3.87s] DEBUG: Loading user /org/freedesktop/Accounts/User152496
[+3.94s] DEBUG: Loading sessions from org.freedesktop.DisplayManager
[+3.94s] DEBUG: unity-greeter.vala:327: Adding/updating user linaro (linaro)
[+3.95s] DEBUG: unity-greeter.vala:184: Adding guest account entry
[+4.46s] DEBUG: unity-greeter.vala:496: Failed to write state: Error writing to file: Bad address
[+4.46s] DEBUG: Starting authentication for user linaro...
[+4.46s] DEBUG: Wrote 22 bytes to daemon
[+4.46s] DEBUG: unity-greeter.vala:880: Showing greeter
[+4.46s] DEBUG: unity-greeter.vala:352: Showing main window
[+4.50s] DEBUG: New style for time label
[+4.53s] DEBUG: Evaluating bitmask for '%H:%M'
[+4.53s] DEBUG: Checking against 1 possible times
[+4.53s] DEBUG: Guessing max time width: 36
[+4.64s] DEBUG: background.vala:315: Regenerating backgrounds
[+4.64s] DEBUG: background.vala:67: Making background /usr/share/backgrounds/warty-final-ubuntu.png at 800x480
[+4.64s] DEBUG: New style for time label
[+4.64s] DEBUG: Evaluating bitmask for '%H:%M'
[+4.64s] DEBUG: Checking against 1 possible times
[+4.64s] DEBUG: Guessing max time width: 36
[+4.75s] DEBUG: unity-greeter.vala:893: Starting main loop
[+4.75s] DEBUG: Read 8 bytes from daemon
[+4.75s] DEBUG: Read 36 bytes from daemon
[+4.75s] DEBUG: Prompt user with 1 message(s)
libEGL warning: DRI2: failed to authenticate
[+5.15s] DEBUG: Setting keyboard layout to 'us'
[+5.96s] DEBUG: Num devices: '3'

[+5.96s] DEBUG: get_primary_device: got data from object /org/freedesktop/UPower/devices/line_power_ac
[+5.96s] DEBUG: get_primary_device: got data from object /org/freedesktop/UPower/devices/battery_battery
[+5.96s] DEBUG: get_primary_device: got data from object /org/freedesktop/UPower/devices/line_power_usb
[+5.96s] DEBUG: put_primary_device: got data from object /org/freedesktop/UPower/devices/battery_battery
[+5.96s] DEBUG: set_accessible_desc: setting accessible description to 'Battery (86%)'
[+5.96s] DEBUG: Num devices: '3'

[+5.96s] DEBUG: menu_add_device: got data from object /org/freedesktop/UPower/devices/line_power_ac
[+5.96s] DEBUG: menu_add_device: got data from object /org/freedesktop/UPower/devices/battery_battery
[+5.96s] DEBUG: menu_add_device: got data from object /org/freedesktop/UPower/devices/line_power_usb
[+5.96s] DEBUG: icon_policy is: 0 (present==0, charge==1, never==2)
[+5.97s] DEBUG: count_batteries found 1 batteries (1 are charging/discharging)
[+5.97s] DEBUG: should_be_visible: yes
[+5.97s] DEBUG: refresh_entry_accessible_desc: setting entry 0x748bc accessible description to 'Battery (86%)'
[+5.97s] DEBUG: get entries
[+5.97s] DEBUG: get entries
[+5.97s] DEBUG: get entries
[+5.97s] DEBUG: menubar.vala:511: Adding indicator object 0x748bc at position 2
[+5.99s] WARNING: Getting layout failed: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `com.canonical.dbusmenu' on object at path /com/canonical/indicator/users/menu
[+6.00s] DEBUG: notify visible signal received
[+6.00s] CRITICAL: ido_calendar_menu_item_set_date: assertion `IDO_IS_CALENDAR_MENU_ITEM(menuitem)' failed
[+6.01s] DEBUG: indicator-sound: new_volume_slider_widget
[+6.05s] DEBUG: indicator-sound: new_voip_slider_widget
[+6.07s] DEBUG: New calendar item
[+6.14s] DEBUG: unity-greeter.vala:310: starting system-ready sound
Assertion 'pthread_mutex_unlock(&m->mutex) == 0' failed at pulsecore/mutex-posix.c:108, function pa_mutex_unlock(). Aborting.

root@EV2:~# cat /var/log/lightdm/x-0.log

X.Org X Server 1.11.3
Release Date: 2011-12-16
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.38-1209-omap4 armv7l Linaro
Current Operating System: Linux EV2 2.6.35.7 #11220 SMP PREEMPT Tue Dec 20 10:00:59 CST 2011 armv7l
Kernel command line: console=ttyS0,115200n8n root=/dev/mmcblk0p5 noinitrd init=/sbin/init rootfstype=ext3 rw rootwait mem=163M@0x40000000 mem=256M@0x50000000
Build Date: 17 July 2012  10:09:43PM
xorg-server 2:1.11.4-0ubuntu10.6+ti1.0linaro1 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.24.4
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Tue Aug  7 00:11:44 2012
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
 ddxSigGiveUp: Closing log
Server terminated successfully (0). Closing log file.