Many new Linux users are apparently trying out Renoise and jack aswell but they are not really familiar with Jack concepts and possibly arising problems on the setup phase. Some sort of tutorial for this would be really helpful here. How to get Renoise running with jack, how to handle problems and how to use Jack.
Dave Phillips’ JACK article in the Linux Pro Magazine is really good (although probably a bit dated because it’s from June 2006): Knowing JACK (PDF 370K)