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[Launchpad Bug Tracker <742143@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 711378 ***
    https://bugs.launchpad.net/bugs/711378

** Changed in: gnome-panel (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/742143

Title:
  gnome-panel runs but neither panel appears

Status in “gnome-panel” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: gnome-panel

  In the Natty i386 24-Mar-2011 daily-live CD environment (natty-
  desktop-i386.iso, md5sum 2337d865ac77319c082fd4753789c90b) with gnome-
  panel 1:2.32.1-0ubuntu6, when I click Try Ubuntu and the desktop comes
  up, neither the top nor the bottom panels appear. However, gnome-panel
  is running:

  ubuntu@ubuntu:~$ ps ax | grep -v grep | grep panel
   4435 ?        Ss     0:00 /bin/sh -c gnome-panel
   4437 ?        Sl     0:02 gnome-panel
   4471 ?        Sl     0:00 /usr/lib/gnome-panel/wnck-applet
   4478 ?        Sl     0:00 /usr/lib/gnome-panel/notification-area-applet

  Here's a screenshot showing the absence of panels (this screenshot shows a different bug being reported, which turned not to likely be related to this problem):
  https://bugs.launchpad.net/ubuntu/+source/gconf/+bug/741458/+attachment/1935316/+files/desktop-without-panels.png

  Windows are able to occupy the parts of the screen where the top and
  bottom panels would be. But when I kill gnome-panel with SIGTERM,
  windows are automatically moved upward in the screen. Killing gnome-
  panel does not cause it to be automatically relaunched. When I
  relaunch gnome-panel manually from the Terminal, both the top and
  bottom panels appear and are functional, but I get:

  ubuntu@ubuntu:~$ gnome-panel

  ** (gnome-panel:4967): WARNING **: Failed to load applet NotificationAreaAppletFactory::NotificationArea:
  GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `org.gnome.panel.applet.AppletFactory' on object at path /org/gnome/panel/applet/NotificationAreaAppletFactory

  And the corresponding error message dialog box appears on the screen.
  I know there is a bug (or bugs) that cause these sorts of errors;
  perhaps this error is not actually related to whatever problem is
  preventing gnome-panel from displaying.

  This also occurred with the 23-Mar-2011 daily-live. I had not used the
  last few daily-lives before that, so I don't know at what point this
  bug was introduced.

  I've attached a copy of .xsession-errors, from after I relaunched
  gnome-panel.

  This is in a classic desktop (not Unity), since the machine running
  the live CD system is a VMware Workstation 7.1.3 build-324285 virtual
  machine without graphics acceleration enabled. (The host machine, in
  case that's relevant, runs Maverick amd64.)

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: gnome-panel 1:2.32.1-0ubuntu6
  ProcVersionSignature: Ubuntu 2.6.38-7.38-generic 2.6.38
  Uname: Linux 2.6.38-7-generic i686
  Architecture: i386
  Date: Thu Mar 24 09:35:44 2011
  ExecutablePath: /usr/bin/gnome-panel
  GConfNonDefault:
   /apps/panel/general/applet_id_list=[indicator_appmenu_screen0,trashapplet_screen0,workspace_switcher_screen0,window_list_screen0,show_desktop_button_screen0,indicator_applet_screen0,notification_area_screen0]
   /apps/panel/general/object_id_list=[menu_bar_screen0]
   /apps/panel/general/toplevel_id_list=[bottom_panel_screen0,top_panel_screen0]
   /apps/panel/global/disable_lock_screen=true
  LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110324)
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gnome-panel
  UpgradeStatus: No upgrade log present (probably fresh install)
  XsessionErrors:
   (nautilus:4434): Gtk-WARNING **: Change Desktop Background: missing action Change Desktop Background
   (nautilus:4434): Gtk-WARNING **: Ubuntu Documentation: missing action Ubuntu Documentation
   (nautilus:4434): Gtk-WARNING **: Change Desktop Background: missing action Change Desktop Background
   (nautilus:4434): Gtk-WARNING **: Ubuntu Documentation: missing action Ubuntu Documentation
   (nautilus:4434): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed

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