Public bug reported:

On Ubuntu 11.10, when clicking on dash home (unity menu bar), the
x-session will crash and redirect to the login page. This same behavior
occurs arbitrarily when executing other applications (e.g. KCacheGrind,
VirtualBox, ...) and sometimes without manual interaction.

These are the contents of .xsession-errors after a crash:

Running X session wrapper
Loading profile from /etc/profile
Loading profile from /home/nu/.profile
Loading resource: /etc/X11/Xresources/x11-common
Loading xinit script /etc/X11/xinit/xinitrc.d/*
Loading X session script /etc/X11/Xsession.d/00_handle_guest_session
Loading X session script /etc/X11/Xsession.d/20x11-common_process-args
Loading X session script /etc/X11/Xsession.d/30x11-common_xresources
Loading X session script /etc/X11/Xsession.d/40x11-common_xsessionrc
Loading X session script /etc/X11/Xsession.d/50_check_unity_support
Loading X session script /etc/X11/Xsession.d/50x11-common_determine-startup
Loading X session script 
/etc/X11/Xsession.d/52libcanberra-gtk3-module_add-to-gtk-modules
Loading X session script 
/etc/X11/Xsession.d/52libcanberra-gtk-module_add-to-gtk-modules
Loading X session script /etc/X11/Xsession.d/55gnome-session_gnomerc
Loading X session script /etc/X11/Xsession.d/60x11-common_localhost
Loading X session script /etc/X11/Xsession.d/60x11-common_xdg_path
Loading X session script /etc/X11/Xsession.d/60xdg-user-dirs-update
Loading X session script /etc/X11/Xsession.d/65compiz_profile-on-session
Loading X session script /etc/X11/Xsession.d/70gconfd_path-on-session
Loading X session script /etc/X11/Xsession.d/75dbus_dbus-launch
Loading X session script /etc/X11/Xsession.d/80appmenu
Loading X session script /etc/X11/Xsession.d/80appmenu-gtk3
Loading X session script /etc/X11/Xsession.d/80im-switch
Setting IM through im-switch for locale=en_US.
Start IM through /etc/X11/xinit/xinput.d/all_ALL linked to 
/etc/X11/xinit/xinput.d/default.
Loading X session script /etc/X11/Xsession.d/90consolekit
Loading X session script /etc/X11/Xsession.d/90qt-a11y
Loading X session script /etc/X11/Xsession.d/90x11-common_ssh-agent
Loading X session script /etc/X11/Xsession.d/99x11-common_start
GNOME_KEYRING_CONTROL=/tmp/keyring-YEtVJJ
GNOME_KEYRING_CONTROL=/tmp/keyring-YEtVJJ
SSH_AUTH_SOCK=/tmp/keyring-YEtVJJ/ssh
GNOME_KEYRING_CONTROL=/tmp/keyring-YEtVJJ
SSH_AUTH_SOCK=/tmp/keyring-YEtVJJ/ssh
GNOME_KEYRING_CONTROL=/tmp/keyring-YEtVJJ
SSH_AUTH_SOCK=/tmp/keyring-YEtVJJ/ssh
GPG_AGENT_INFO=/tmp/keyring-YEtVJJ/gpg:0:1

(gnome-settings-daemon:13244): color-plugin-WARNING **: failed to get edid: 
unable to get EDID for output
unity-2d-panel: [DEBUG] Scanning panel plugin directory 
"/usr/lib/unity-2d/plugins/panel"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appindicator.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appname.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-homebutton.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-indicator.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-legacytray.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-separator.so"
unity-2d-panel: [DEBUG] Configured plugins list is: ("appname", "!legacytray", 
"indicator")
unity-2d-launcher: [DEBUG] bool KeyMonitor::registerEvents(): Could not open 
device:  Virtual core pointer
unity-2d-launcher: [DEBUG] bool KeyMonitor::registerEvents(): Could not open 
device:  Virtual core keyboard
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Alt+F1"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Alt+F2"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+0"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+0"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+1"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+1"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+2"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+2"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+3"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+3"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+4"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+4"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+5"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+5"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+6"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+6"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+7"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+7"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+8"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+8"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+9"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+9"
** (gnome-fallback-mount-helper:13270): DEBUG: Starting automounting manager
Failed to play sound: File or data not found
unity-2d-launcher: [DEBUG] static void 
WindowImageProvider::activateComposite(): Server supports the Composite 
extension (ver 0.4)
** (nautilus:13268): DEBUG: Syncdaemon not running, waiting for it to start in 
NameOwnerChanged
Initializing nautilus-gdu extension
(bluetooth-applet:13267): Bluetooth-DEBUG: adding killswitch idx 0 state 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: adding killswitch idx 2 state 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
(bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
unity-panel-service: no process found
unity-2d-panel: [DEBUG] Scanning panel plugin directory 
"/usr/lib/unity-2d/plugins/panel"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appindicator.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appname.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-homebutton.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-indicator.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-legacytray.so"
unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-separator.so"
unity-2d-panel: [DEBUG] Configured plugins list is: ("appname", "!legacytray", 
"indicator")
** Message: applet now removed from the notification area
unity-2d-panel: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "F10"
** (gnome-fallback-mount-helper:13270): DEBUG: Found ConsoleKit session at path 
/org/freedesktop/ConsoleKit/Session8
** (gnome-fallback-mount-helper:13270): DEBUG: ScreenSaver name appeared
** (gnome-fallback-mount-helper:13270): DEBUG: ConsoleKit session is active 1
** (gnome-fallback-mount-helper:13270): DEBUG: ScreenSaver proxy ready
** (gnome-fallback-mount-helper:13270): DEBUG: Screensaver GetActive() returned 0
** (nm-applet:13264): DEBUG: old state indicates that this was not a disconnect 0
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+S"
unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+T"
unity-2d-launcher: [WARNING] int Trash::count() const: Unable to obtain the 
number of items in the trash: Automount failed: DBus error 
org.freedesktop.DBus.Error.InvalidArgs: Mountpoint Already registered

(nautilus:13268): Gtk-CRITICAL **: gtk_action_set_visible: assertion
`GTK_IS_ACTION (action)' failed

(nautilus:13268): Gtk-CRITICAL **: gtk_action_set_visible: assertion 
`GTK_IS_ACTION (action)' failed
** Message: using fallback from indicator to GtkStatusIcon
** Message: moving back from GtkStatusIcon to indicator
unity-2d-launcher: [WARNING] QImage GImageUtils::imageForIconString(const 
QString&, int, GtkIconTheme*): Failed to find icon: "user-trash"
unity-2d-launcher: [WARNING] 
file:///usr/share/unity-2d/launcher/LauncherItem.qml:243:13: QML 
QDeclarativeImage_QML_6: Failed to get image from provider: 
image://icons/user-trash
unity-2d-launcher: [WARNING] QImage GImageUtils::imageForIconString(const 
QString&, int, GtkIconTheme*): Failed to find icon: "unknown"
unity-2d-launcher: [WARNING] 
file:///usr/share/unity-2d/launcher/LauncherItem.qml:243:13: QML 
QDeclarativeImage_QML_6: Failed to get image from provider: 
image://icons/unknown
unity-2d-launcher: [WARNING] X Error: BadWindow (invalid Window parameter) 3
  Major opcode: 18 (X_ChangeProperty)
  Resource id:  0x0
Nautilus-Share-Message: Called "net usershare info" but it failed: 'net 
usershare' returned error 255: net usershare: cannot open usershare directory 
/var/lib/samba/usershares. Error No such file or directory
Please ask your system administrator to enable user sharing.

** (gnome-settings-daemon:13244): WARNING **: Connection failed,
reconnecting...

** (gnome-settings-daemon:13244): WARNING **: Failed to connect context: 
Connection refused
** (process:13386): DEBUG: Telepathy Indicator started
unity-2d-launcher: [WARNING] void 
LauncherApplicationsList::onRemoteEntryUpdated(QString, QMap<QString, 
QVariant>): Application sent an update but we don't seem to have it in the 
launcher: "application://empathy.desktop"
unity-2d-launcher: [WARNING] void 
LauncherApplicationsList::onRemoteEntryUpdated(QString, QMap<QString, 
QVariant>): Application sent an update but we don't seem to have it in the 
launcher: "application://empathy.desktop"
gnome-session[13175]: WARNING: Could not launch application 
'pulseaudio.desktop': Unable to start application: Failed to execute child 
process "start-pulseaudio-x11" (No such file or directory)

** (gnome-settings-daemon:13244): WARNING **: Connection failed,
reconnecting...

** (gnome-settings-daemon:13244): WARNING **: Failed to connect context:
Connection refused

** Affects: ubuntu
     Importance: Undecided
         Status: New


** Tags: crash session unity

** Tags added: crash session unity

** Description changed:

- When clicking on dash home (unity menu bar), the x-session will crash
- and redirect to the login page. This same behavior occurs arbitrarily
- when executing other applications (e.g. KCacheGrind, VirtualBox, ...)
- and sometimes without manual interaction.
+ On Ubuntu 11.10, when clicking on dash home (unity menu bar), the
+ x-session will crash and redirect to the login page. This same behavior
+ occurs arbitrarily when executing other applications (e.g. KCacheGrind,
+ VirtualBox, ...) and sometimes without manual interaction.
  
  These are the contents of .xsession-errors after a crash:
  
  Running X session wrapper
  Loading profile from /etc/profile
  Loading profile from /home/nu/.profile
  Loading resource: /etc/X11/Xresources/x11-common
  Loading xinit script /etc/X11/xinit/xinitrc.d/*
  Loading X session script /etc/X11/Xsession.d/00_handle_guest_session
  Loading X session script /etc/X11/Xsession.d/20x11-common_process-args
  Loading X session script /etc/X11/Xsession.d/30x11-common_xresources
  Loading X session script /etc/X11/Xsession.d/40x11-common_xsessionrc
  Loading X session script /etc/X11/Xsession.d/50_check_unity_support
  Loading X session script /etc/X11/Xsession.d/50x11-common_determine-startup
  Loading X session script 
/etc/X11/Xsession.d/52libcanberra-gtk3-module_add-to-gtk-modules
  Loading X session script 
/etc/X11/Xsession.d/52libcanberra-gtk-module_add-to-gtk-modules
  Loading X session script /etc/X11/Xsession.d/55gnome-session_gnomerc
  Loading X session script /etc/X11/Xsession.d/60x11-common_localhost
  Loading X session script /etc/X11/Xsession.d/60x11-common_xdg_path
  Loading X session script /etc/X11/Xsession.d/60xdg-user-dirs-update
  Loading X session script /etc/X11/Xsession.d/65compiz_profile-on-session
  Loading X session script /etc/X11/Xsession.d/70gconfd_path-on-session
  Loading X session script /etc/X11/Xsession.d/75dbus_dbus-launch
  Loading X session script /etc/X11/Xsession.d/80appmenu
  Loading X session script /etc/X11/Xsession.d/80appmenu-gtk3
  Loading X session script /etc/X11/Xsession.d/80im-switch
  Setting IM through im-switch for locale=en_US.
  Start IM through /etc/X11/xinit/xinput.d/all_ALL linked to 
/etc/X11/xinit/xinput.d/default.
  Loading X session script /etc/X11/Xsession.d/90consolekit
  Loading X session script /etc/X11/Xsession.d/90qt-a11y
  Loading X session script /etc/X11/Xsession.d/90x11-common_ssh-agent
  Loading X session script /etc/X11/Xsession.d/99x11-common_start
  GNOME_KEYRING_CONTROL=/tmp/keyring-YEtVJJ
  GNOME_KEYRING_CONTROL=/tmp/keyring-YEtVJJ
  SSH_AUTH_SOCK=/tmp/keyring-YEtVJJ/ssh
  GNOME_KEYRING_CONTROL=/tmp/keyring-YEtVJJ
  SSH_AUTH_SOCK=/tmp/keyring-YEtVJJ/ssh
  GNOME_KEYRING_CONTROL=/tmp/keyring-YEtVJJ
  SSH_AUTH_SOCK=/tmp/keyring-YEtVJJ/ssh
  GPG_AGENT_INFO=/tmp/keyring-YEtVJJ/gpg:0:1
  
  (gnome-settings-daemon:13244): color-plugin-WARNING **: failed to get edid: 
unable to get EDID for output
- unity-2d-panel: [DEBUG] Scanning panel plugin directory 
"/usr/lib/unity-2d/plugins/panel" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appindicator.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appname.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-homebutton.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-indicator.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-legacytray.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-separator.so" 
- unity-2d-panel: [DEBUG] Configured plugins list is: ("appname", 
"!legacytray", "indicator") 
- unity-2d-launcher: [DEBUG] bool KeyMonitor::registerEvents(): Could not open 
device:  Virtual core pointer 
- unity-2d-launcher: [DEBUG] bool KeyMonitor::registerEvents(): Could not open 
device:  Virtual core keyboard 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Alt+F1" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Alt+F2" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+0" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+0" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+1" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+1" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+2" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+2" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+3" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+3" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+4" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+4" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+5" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+5" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+6" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+6" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+7" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+7" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+8" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+8" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+9" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+9" 
+ unity-2d-panel: [DEBUG] Scanning panel plugin directory 
"/usr/lib/unity-2d/plugins/panel"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appindicator.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appname.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-homebutton.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-indicator.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-legacytray.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-separator.so"
+ unity-2d-panel: [DEBUG] Configured plugins list is: ("appname", 
"!legacytray", "indicator")
+ unity-2d-launcher: [DEBUG] bool KeyMonitor::registerEvents(): Could not open 
device:  Virtual core pointer
+ unity-2d-launcher: [DEBUG] bool KeyMonitor::registerEvents(): Could not open 
device:  Virtual core keyboard
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Alt+F1"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Alt+F2"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+0"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+0"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+1"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+1"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+2"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+2"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+3"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+3"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+4"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+4"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+5"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+5"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+6"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+6"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+7"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+7"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+8"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+8"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+9"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+Shift+9"
  ** (gnome-fallback-mount-helper:13270): DEBUG: Starting automounting manager
  Failed to play sound: File or data not found
  unity-2d-launcher: [DEBUG] static void 
WindowImageProvider::activateComposite(): Server supports the Composite 
extension (ver 0.4)
  ** (nautilus:13268): DEBUG: Syncdaemon not running, waiting for it to start 
in NameOwnerChanged
  Initializing nautilus-gdu extension
  (bluetooth-applet:13267): Bluetooth-DEBUG: adding killswitch idx 0 state 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: adding killswitch idx 2 state 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 0 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitch 2 is 
KILLSWITCH_STATE_UNBLOCKED
  (bluetooth-applet:13267): Bluetooth-DEBUG: killswitches state 
KILLSWITCH_STATE_UNBLOCKED
  unity-panel-service: no process found
- unity-2d-panel: [DEBUG] Scanning panel plugin directory 
"/usr/lib/unity-2d/plugins/panel" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appindicator.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appname.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-homebutton.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-indicator.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-legacytray.so" 
- unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-separator.so" 
- unity-2d-panel: [DEBUG] Configured plugins list is: ("appname", 
"!legacytray", "indicator") 
+ unity-2d-panel: [DEBUG] Scanning panel plugin directory 
"/usr/lib/unity-2d/plugins/panel"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appindicator.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-appname.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-homebutton.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-indicator.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-legacytray.so"
+ unity-2d-panel: [DEBUG] Loading panel plugin: 
"/usr/lib/unity-2d/plugins/panel/libpanelplugin-separator.so"
+ unity-2d-panel: [DEBUG] Configured plugins list is: ("appname", 
"!legacytray", "indicator")
  ** Message: applet now removed from the notification area
- unity-2d-panel: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "F10" 
+ unity-2d-panel: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "F10"
  ** (gnome-fallback-mount-helper:13270): DEBUG: Found ConsoleKit session at 
path /org/freedesktop/ConsoleKit/Session8
  ** (gnome-fallback-mount-helper:13270): DEBUG: ScreenSaver name appeared
  ** (gnome-fallback-mount-helper:13270): DEBUG: ConsoleKit session is active 1
  ** (gnome-fallback-mount-helper:13270): DEBUG: ScreenSaver proxy ready
  ** (gnome-fallback-mount-helper:13270): DEBUG: Screensaver GetActive() 
returned 0
  ** (nm-applet:13264): DEBUG: old state indicates that this was not a 
disconnect 0
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+S" 
- unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+T" 
- unity-2d-launcher: [WARNING] int Trash::count() const: Unable to obtain the 
number of items in the trash: Automount failed: DBus error 
org.freedesktop.DBus.Error.InvalidArgs: Mountpoint Already registered 
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+S"
+ unity-2d-launcher: [DEBUG] virtual void Hotkey::connectNotify(const char*): 
Grabbing hotkey "Meta+T"
+ unity-2d-launcher: [WARNING] int Trash::count() const: Unable to obtain the 
number of items in the trash: Automount failed: DBus error 
org.freedesktop.DBus.Error.InvalidArgs: Mountpoint Already registered
  
  (nautilus:13268): Gtk-CRITICAL **: gtk_action_set_visible: assertion
  `GTK_IS_ACTION (action)' failed
  
  (nautilus:13268): Gtk-CRITICAL **: gtk_action_set_visible: assertion 
`GTK_IS_ACTION (action)' failed
  ** Message: using fallback from indicator to GtkStatusIcon
  ** Message: moving back from GtkStatusIcon to indicator
- unity-2d-launcher: [WARNING] QImage GImageUtils::imageForIconString(const 
QString&, int, GtkIconTheme*): Failed to find icon: "user-trash" 
+ unity-2d-launcher: [WARNING] QImage GImageUtils::imageForIconString(const 
QString&, int, GtkIconTheme*): Failed to find icon: "user-trash"
  unity-2d-launcher: [WARNING] 
file:///usr/share/unity-2d/launcher/LauncherItem.qml:243:13: QML 
QDeclarativeImage_QML_6: Failed to get image from provider: 
image://icons/user-trash
- unity-2d-launcher: [WARNING] QImage GImageUtils::imageForIconString(const 
QString&, int, GtkIconTheme*): Failed to find icon: "unknown" 
+ unity-2d-launcher: [WARNING] QImage GImageUtils::imageForIconString(const 
QString&, int, GtkIconTheme*): Failed to find icon: "unknown"
  unity-2d-launcher: [WARNING] 
file:///usr/share/unity-2d/launcher/LauncherItem.qml:243:13: QML 
QDeclarativeImage_QML_6: Failed to get image from provider: 
image://icons/unknown
  unity-2d-launcher: [WARNING] X Error: BadWindow (invalid Window parameter) 3
-   Major opcode: 18 (X_ChangeProperty)
-   Resource id:  0x0
+   Major opcode: 18 (X_ChangeProperty)
+   Resource id:  0x0
  Nautilus-Share-Message: Called "net usershare info" but it failed: 'net 
usershare' returned error 255: net usershare: cannot open usershare directory 
/var/lib/samba/usershares. Error No such file or directory
  Please ask your system administrator to enable user sharing.
  
- 
- ** (gnome-settings-daemon:13244): WARNING **: Connection failed, 
reconnecting...
+ ** (gnome-settings-daemon:13244): WARNING **: Connection failed,
+ reconnecting...
  
  ** (gnome-settings-daemon:13244): WARNING **: Failed to connect context: 
Connection refused
  ** (process:13386): DEBUG: Telepathy Indicator started
- unity-2d-launcher: [WARNING] void 
LauncherApplicationsList::onRemoteEntryUpdated(QString, QMap<QString, 
QVariant>): Application sent an update but we don't seem to have it in the 
launcher: "application://empathy.desktop" 
- unity-2d-launcher: [WARNING] void 
LauncherApplicationsList::onRemoteEntryUpdated(QString, QMap<QString, 
QVariant>): Application sent an update but we don't seem to have it in the 
launcher: "application://empathy.desktop" 
+ unity-2d-launcher: [WARNING] void 
LauncherApplicationsList::onRemoteEntryUpdated(QString, QMap<QString, 
QVariant>): Application sent an update but we don't seem to have it in the 
launcher: "application://empathy.desktop"
+ unity-2d-launcher: [WARNING] void 
LauncherApplicationsList::onRemoteEntryUpdated(QString, QMap<QString, 
QVariant>): Application sent an update but we don't seem to have it in the 
launcher: "application://empathy.desktop"
  gnome-session[13175]: WARNING: Could not launch application 
'pulseaudio.desktop': Unable to start application: Failed to execute child 
process "start-pulseaudio-x11" (No such file or directory)
  
  ** (gnome-settings-daemon:13244): WARNING **: Connection failed,
  reconnecting...
  
  ** (gnome-settings-daemon:13244): WARNING **: Failed to connect context:
  Connection refused

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https://bugs.launchpad.net/bugs/891599

Title:
  x session crash when clicking dash home

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