Bug#529299: [gnome-panel] Gnome panel doesn't show - gtk_widget_size_allocate(): attempt to allocate widget with width -28 and height 24

[Erich Schubert]

Package: gnome-panel
Version: 2.26.0-1
Severity: important

Gnome-panel currently doesn't start right.
After login, it first came up right. I added a launcher where it froze when I tried to change the launchers Icon.
Now gnome-panel doesn't show up anymore, the only thing I have in the logs is:

(gnome-panel:5105): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width -28 and height 24

(gnome-panel:5109): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width -28 and height 24

(gnome-panel:5112): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width -28 and height 24

(This is me trying to get gnome-panel to show up again by killing it, notice the different PIDs)

How do I get my panel back?

--- System information. ---
Architecture: amd64
Kernel:       Linux 2.6.29-2-amd64

Debian Release: squeeze/sid
  500 unstable        www.debian-multimedia.org 
  500 unstable        ftp.de.debian.org 
    1 experimental    ftp.de.debian.org 

--- Package information. ---
Depends                        (Version) | Installed
========================================-+-===============
libatk1.0-0                  (>= 1.20.0) | 1.26.0-1
libbonobo2-0                 (>= 2.15.0) | 2.24.1-1
libbonoboui2-0               (>= 2.15.1) | 2.24.1-1
libc6                         (>= 2.2.5) | 2.9-12
libcairo2                     (>= 1.2.4) | 1.8.6-2+b1
libdbus-1-3                   (>= 1.0.2) | 1.2.14-2
libdbus-glib-1-2               (>= 0.78) | 0.80-4
libecal1.2-7                 (>= 2.24.5) | 2.26.1.1-2
libedataserver1.2-11         (>= 2.24.5) | 2.26.1.1-2
libedataserverui1.2-8        (>= 2.24.5) | 2.26.1.1-2
libgconf2-4                  (>= 2.23.2) | 2.26.0-1
libglade2-0                 (>= 1:2.6.1) | 1:2.6.4-1
libglib2.0-0                 (>= 2.20.0) | 2.20.1-2
libgnome-desktop-2-11                    | 2.26.1-1
libgnome-menu2               (>= 2.23.3) | 2.24.2-2
libgnome2-0                  (>= 2.17.3) | 2.26.0-1
libgnomeui-0                 (>= 2.22.0) | 2.24.1-1
libgtk2.0-0                  (>= 2.16.0) | 2.16.1-2
libgweather1                (>= 2.23.92) | 2.26.1-1
liborbit2                 (>= 1:2.14.10) | 1:2.14.17-0.1
libpanel-applet2-0           (>= 2.26.0) | 2.26.0-1
libpango1.0-0                (>= 1.18.0) | 1.24.2-1
libpolkit-dbus2                 (>= 0.7) | 0.9-3
libpolkit2                      (>= 0.7) | 0.9-3
librsvg2-2                   (>= 2.22.3) | 2.22.3-2
libwnck22                    (>= 2.22.0) | 2.24.2-2
libx11-6                                 | 2:1.2.1-1
libxau6                                  | 1:1.0.4-2
gnome-panel-data               (>= 2.26) | 2.26.0-1
gnome-panel-data               (<< 2.27) | 2.26.0-1
gnome-desktop-data         (>= 2.10.0-1) | 2.26.1-1
gnome-control-center      (>= 1:2.8.2-3) | 1:2.24.0.1-5
gnome-menus                  (>= 2.16.1) | 2.24.2-2
gnome-about                (>= 2.10.0-1) | 2.26.1-1
menu-xdg                        (>= 0.2) | 0.4


Recommends                    (Version) | Installed
=======================================-+-==============
gnome-applets             (>= 2.12.1-1) | 2.24.3.1-2+b1
gnome-session                           | 2.26.1-1
evolution-data-server                   | 2.26.1.1-2
gnome-icon-theme              (>= 2.24) | 2.24.0-4
alacarte                                | 0.11.10-1
gvfs                                    | 1.2.2-2
policykit-gnome                         | 0.9.2-2


Suggests                   (Version) | Installed
====================================-+-=============
yelp                                 | 2.24.0-2
gnome2-user-guide                    | 
gnome-terminal                       | 2.24.3-3
 OR x-terminal-emulator              | 
gnome-system-tools                   | 2.22.1-4
nautilus                             | 2.26.2-3
evolution                            | 2.26.1.1-2
epiphany-browser                     | 2.26.1-1
gnome-session           (>= 2.23.6)  | 2.26.1-1
 OR gdm                              | 2.20.9-1