Hi, I've just installed pd and am having trouble with the audio setup. I think the problem lies with pd and not jack but am not sure. When I do "Test Audio and Midi..." the following error appears in red on the gui: "dio I/O error". The test tones are silent.

Here is my setup:

Ubuntu 13.04 pd 0.43.4-extended qjackctl 0.3.10 libjack-jackd2-0 libjack-jackd2-dev

Jack is selected from the list oss, alsa, portaudio and jack.

Thanks for your help. Peter