How To Fix Could Not Connect To JACK Server As Client In Ubuntu 11.10

Ok, there seems to be a bug in jackd or ALSA or PulseAudio. I've been working since yesterday to get it to run and did these:

You need to un-install jackd2 and install jackd1 instead using Synaptic.

Then, install Ardour (686), and remove the Ardour default installation.

Run Audacity.

Launch QjackCtl and click Setup->Interface to hw:0,0 or default (vice-versa).

That's it!