I am using wheezy and gnome 3.
I just did a little research on google that I think this is somewhat related to dbus?
(althought I don't know what it does. but the output there has a line contains dbus_create_service_instance? )
This is the related bug report:
However at the end it said it is fixed in version 0.9.32.
But I have the version:
notify-osd:
Installed: 0.9.34-2
Candidate: 0.9.34-2
Do I need to modify the file in here?
/etc/xdg/autostart/notify-osd.desktop
[Desktop Entry]
Name=Notify OSD
Comment=Display notifications
Exec=/usr/lib/notify-osd/notify-osd
Terminal=false
Type=Application
_OnlyShowIn_=LXDE;OPENBOX;GNOME;XFCE;
X-GNOME-Autostart-enabled=false
Sorry for didn't provide much information. I was just frustrated to find the solution:(