Fails to start

[Alin Andrei]

I've installed Sysmonster from your PPA (version: 7-0~8~natty1) but it fails to start:

andrei@andrei-desktop:~/unity-launcher-editor/unitylaunchereditor$ sysmonster
Gtk-Message: Failed to load module "canberra-gtk-module"
/usr/lib/pymodules/python2.7/gtk-2.0/gtk/__init__.py:40: Warning: specified class size for type `PyGtkGenericCellRenderer' is smaller than the parent type's `GtkCellRenderer' class size
  from gtk import _gtk
/usr/lib/pymodules/python2.7/gtk-2.0/gtk/__init__.py:40: Warning: g_type_get_qdata: assertion `node != NULL' failed
  from gtk import _gtk
/usr/lib/pymodules/python2.7/gtk-2.0/gtk/__init__.py:40: Warning: g_ascii_strncasecmp: assertion `s2 != NULL' failed
  from gtk import _gtk
Segmentation fault

[Botond Szász (boteeka)]

Can you please paste here the output of the following commands:

apt-cache policy libcanberra-gtk0

apt-cache policy libcanberra-gtk3-0

apt-cache policy gir1.2-gtk-2.0

[Alin Andrei (nilarimogard)]

When I've submitted this bug, I didn't have libcanberra-gtk0 and libcanberra-gtk3-0 installed, but trying to get this to work, I've installed it and Sysmonster still doesn't work. By the way, you should add those as a dependency for the package in the PPA.

I already had gir1.2-gtk-2.0 installed.

Here are the outputs of the commands you requested:

andrei@andrei-desktop:~/gnome-shell/install/share/glib-2.0/schemas$ apt-cache policy libcanberra-gtk0
libcanberra-gtk0:
  Installed: 0.28-0ubuntu3
  Candidate: 0.28-0ubuntu3
  Version table:
 *** 0.28-0ubuntu3 0
        500 http://archive.ubuntu.com/ubuntu/ natty/main i386 Packages
        100 /var/lib/dpkg/status

apt-cache policy libcanberra-gtk3-0
libcanberra-gtk3-0:
  Installed: 0.28-0ubuntu3
  Candidate: 0.28-0ubuntu3
  Version table:
 *** 0.28-0ubuntu3 0
        500 http://archive.ubuntu.com/ubuntu/ natty/main i386 Packages
        100 /var/lib/dpkg/status

andrei@andrei-desktop:~/gnome-shell/install/share/glib-2.0/schemas$ apt-cache policy gir1.2-gtk-2.0
gir1.2-gtk-2.0:
  Installed: 2.24.4-0ubuntu2
  Candidate: 2.24.4-0ubuntu2
  Version table:
 *** 2.24.4-0ubuntu2 0
        500 http://archive.ubuntu.com/ubuntu/ natty/main i386 Packages
        100 /var/lib/dpkg/status

[Botond Szász (boteeka)]

SysMonster does not need libcanberra at all. Libcanberra is for desktop sounds and SysMonster does not produce any sounds.

I think the error messages you get does not directly relate to why SysMonster does not start but indicate some other problems.

[Alin Andrei (nilarimogard)]

Whatever it was, I'm not getting the libranberra error anymore after installing it, but it still doesn't start:

andrei@andrei-desktop:~$ sysmonster
/usr/lib/pymodules/python2.7/gtk-2.0/gtk/__init__.py:40: Warning: specified class size for type `PyGtkGenericCellRenderer' is smaller than the parent type's `GtkCellRenderer' class size
  from gtk import _gtk
/usr/lib/pymodules/python2.7/gtk-2.0/gtk/__init__.py:40: Warning: g_type_get_qdata: assertion `node != NULL' failed
  from gtk import _gtk
/usr/lib/pymodules/python2.7/gtk-2.0/gtk/__init__.py:40: Warning: g_ascii_strncasecmp: assertion `s2 != NULL' failed
  from gtk import _gtk
Segmentation fault

This occurs on two computers running Ubuntu 11.04 32bit.

[Alex Eftimie (alexeftimie)]

from a similiar experience, this problem is caused by a conflict between static modules (ie pygtk) and dynamically loaded bindings (ie gi.repository).