Pitivi crashes on startup with the following error on PPC machines. On a
similar set up on a debian squeeze x86 system this does not happen. The
ubuntu bug report is
https://bugs.launchpad.net/ubuntu/+source/pitivi/+bug/557556

amitu@debian:~$ pitivi
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
Traceback (most recent call last):
  File "/usr/bin/pitivi", line 106, in <module>
    _run_pitivi()
  File "/usr/bin/pitivi", line 101, in _run_pitivi
    sys.exit(ptv.main(sys.argv))
  File "/usr/lib/pitivi/python/pitivi/application.py", line 358, in main
    ptv.run(sys.argv[1:])
  File "/usr/lib/pitivi/python/pitivi/application.py", line 275, in run
    self.projectManager.newBlankProject()
  File "/usr/lib/pitivi/python/pitivi/projectmanager.py", line 179, in newBlankProject
    track = Track(audio)
  File "/usr/lib/pitivi/python/pitivi/timeline/track.py", line 674, in __init__
    self.mixer = self._getMixerForStream(stream)
  File "/usr/lib/pitivi/python/pitivi/timeline/track.py", line 755, in _getMixerForStream
    m = SmartAdderBin()
  File "/usr/lib/pitivi/python/pitivi/elements/mixer.py", line 56, in __init__
    srcpad = gst.GhostPad("src", csp.get_pad("src"))
RuntimeError: could not create GstGhostPad object