> (process:7387): GLib-GIO-WARNING **: Received property menu with type s does not match expected type o in the expected interface void DBusMenuImporter::slotGetLayoutFinished(QDBusPendingCallWatcher*): "No such interface `com.canonical.dbusmenu' on object at path /"
This is probably the problem: there seems to be some sort of incompatibility involving Ubuntu's "dbusmenu" system and how it interacts with Qt/KDE applications. Please report this to the suppliers of the packages you're using (Ubuntu, Kubuntu, or any third-party dbusmenu or KDE packages you're using).
From one of the KDE bugs you linked:
> (process:7387): GLib-GIO-WARNING **: Received property menu with type s does not match expected type o in the expected interface void DBusMenuImporte r::slotGetLayou tFinished( QDBusPendingCal lWatcher* ): "No such interface `com.canonical. dbusmenu' on object at path /"
This is probably the problem: there seems to be some sort of incompatibility involving Ubuntu's "dbusmenu" system and how it interacts with Qt/KDE applications. Please report this to the suppliers of the packages you're using (Ubuntu, Kubuntu, or any third-party dbusmenu or KDE packages you're using).
I don't think this is a D-Bus bug.