Comment 23 for bug 139368

I also on login (to Gnome) sometimes get messages about not being able to contact the dbus service,
appearing on screen and in various log files. Usually if I logout and login again, all looks normal on second login.
Sure looks like there is insufficient synchronization of the things that run during Gnome session startup.

Question: the comments on the packages dbus and dbus-x11 imply that both should be installed to use dbus with x11, but the dependencies say I can install one or the other but not both. I have never directly installed either one, but on my system here dbus is installed and dbus-x11 is not installed. A comment above mentions installing dbus-x11. Which dbus packages SHOULD I have installed to run a normal Gnome / Ubuntu Gutsy desktop?

logfile excerpts follow...

/var/log/user.log:
Feb 19 09:12:21 wolf gnome-power-manager: (paul) This program cannot start until you start the dbus session service. This is usually started automatically in X or gnome startup when you start a new session.

.xsession-errors:
Starting gtk-window-decorator
libnotify-Message: Unable to get session bus: Failed to connect to socket /tmp/dbus-rBO43T6etz: Connection refused
libnotify-Message: Unable to get session bus: Failed to connect to socket /tmp/dbus-rBO43T6etz: Connection refused
** Message: Not starting remote desktop server

Tracker version 0.6.3 Copyright (c) 2005-2007 by Jamie McCracken (<email address hidden>)

This program is free software and comes without any warranty.
It is licensed under version 2 or later of the General Public License which can
be viewed at http://www.gnu.org/licenses/gpl.txt

Initialising tracker...
Could not set idle IO priority...attempting best effort 7 priority
Throttle level is 0
libnotify-Message: Unable to get session bus: Failed to connect to socket /tmp/dbus-rBO43T6etz: Connection refused
system-config-printer-applet: unable to initialize pynotify
system-config-printer-applet: failed to connect to session D-Bus
ERROR: tracker_dbus_init() could not get the session bus
DBUS ERROR: org.freedesktop.DBus.Error.NoServer occurred with message Failed to connect to socket /tmp/dbus-rBO43T6etz: Connection refused
process 6021: arguments to dbus_connection_register_object_path() were incorrect, assertion "connection != NULL" failed in file dbus-connection.c line 5280.
This is normally a bug in some application using the D-Bus library.
evolution-alarm-notify-Message: Setting timeout for 53255 1203483600 1203430345
evolution-alarm-notify-Message: Wed Feb 20 00:00:00 2008

evolution-alarm-notify-Message: Tue Feb 19 09:12:25 2008

libnotify-Message: Unable to get session bus: Failed to connect to socket /tmp/dbus-rBO43T6etz: Connection refused
Initializing gnome-mount extension