Comment 4 for bug 515915

The problem went away for a few weeks and then reappeared. Waiting 30 seconds to open a 1 page pdf is not normal. During the hanging, the cpu is idling, so it's not doing some heavy duty calculation.

I have attached a new backtrace with more debug symbols. The program was interrupted with ^C while hanging.

Note that there are still no symbols no libdbus. Which package is it?

I have these available:
$ apt-cache search libdbus*
dbus - simple interprocess messaging system
libdbus-1-3 - simple interprocess messaging system
libdbus-1-dev - simple interprocess messaging system (development headers)
libdbus-glib-1-2 - simple interprocess messaging system (GLib-based shared library)
libdbus-glib-1-2-dbg - simple interprocess messaging system (GLib library debug symbols)
libdbus-glib-1-dev - simple interprocess messaging system (GLib interface)
libdbus-glib-1-doc - simple interprocess messaging system (GLib library documentation)
libdbus-qt-1-1c2 - simple interprocess messaging system (Qt-based shared library)
libdbus-qt-1-dev - simple interprocess messaging system (Qt interface)
libdbusmenu-glib-dev - Menus over DBus shared library
libdbusmenu-glib0 - Menus over DBus shared library for glib
libdbusmenu-gtk-dev - Menus over DBus shared library for GTK
libdbusmenu-gtk0 - Menus over DBus shared library for GTK
libndesk-dbus-glib1.0-cil - CLI implementation of D-Bus (GLib mainloop integration)
libndesk-dbus1.0-cil - CLI implementation of D-Bus
libdbus-1-qt3 - dbus bindings for Qt 3 (backport of the Qt 4 bindings)
libdbus-1-qt3-dev - dbus bindings for Qt 3 (backport of the Qt 4 bindings)
libdbus-java - simple interprocess messaging system (Java implementation)
libdbus-java-doc - simple interprocess messaging system (Java interface documentation)
libdbus-ocaml - OCaml bindings for the D-Bus API
libdbus-ocaml-dev - OCaml bindings for the D-Bus API
libdbus-ruby - Ruby binding for D-Bus
libdbus-ruby1.8 - Ruby 1.8 binding for D-Bus

And this dbg package is already installed:

$ dpkg -l libdbus-glib-1-2-dbg
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-===========================-===========================-======================================================================
ii libdbus-glib-1-2-dbg 0.80-4ubuntu1 simple interprocess messaging system (GLib library debug symbols)