thomas skellund wrote: You don't need qjackctl's patchbay - a simple shell script will suffice. There's jack_connect, jack_lsp and jack_disconnect. a simple example looks like this: -=-=-=-=-=-=-=-=- #!/bin/bash # re-start jackd killall jackd && sleep 1 sh ~/.jackdrc & sleep 3 # wait until jackd has started jack_lsp >/dev/null || (echo "could not start jackd"; exit;) #start jack client apps. eg: jack_metro -b 80 & # connect ports sleep 1 # wait until clients are ready jack_connect 'metro:80_bpm' 'system:playback_1' jack_connect 'metro:80_bpm' 'system:playback_2' # echo "running." while true; do # restart this script if a client dies jack_lsp | grep metro || exec $0 sleep 5 done -=-=-=-=-=-=-=-=- Of course the error checking can become smarter, ie. only re-start the app that has quit instead of the whole jackd and re-run the jack_connect part.. YMMV. have fun, robin