[LAU] killling zombie jack

Hi Old problem here, decided to try to get to the bottom of this. Normally I start jack from qjackctl and mostly everythings fine. However sometimes "something" makes jack hang and I cannot kill it, so I have to reboot :-( When started proberly from qjackctl the process is called jackd. If I forget to start jack before renoise and renoise is configured to use jack, renoise starts its own jack. This is called jackdbus. It seems I have both "jackd", "jackd2" and "jackd2-firewire" installed, probably because I was testing which one worked better with my new kernel. 1) How can I kill-kill jack when it's hanging? 2) What's the prober way of having two versions of jack installed, making sure I'm *always* using one version as default (specifically, how to make qjackctl and renoise use the same version)? Sorry if this is all too obvious... NB: Running debian jessie + liquorix sid Cheers -- Atte http://atte.dk http://a773.dk