Traceback (most recent call last):
  File "<string>", line 18, in kpythonpluginfactory_bridge
  File "/usr/share/kde4/apps/system-config-printer-kde/system-config-printer-kde.py", line 4398, in CreatePlugin
    kcm = u.makeui(component_data, widget_parent)
  File "/usr/share/kde4/apps/system-config-printer-kde/system-config-printer-kde.py", line 173, in makeui
    encryption=encryption)
  File "/usr/share/kde4/apps/system-config-printer-kde/authconn.py", line 168, in __init__
    self._connect ()
  File "/usr/share/kde4/apps/system-config-printer-kde/authconn.py", line 200, in _connect
    encryption=self._encryption)
RuntimeError: failed to connect to server