Hello David! Did you try starting just fluidsynth like this: fluidsynth -a jack -j [-r samplerate] soundfont_file aconnect soundcard-port fluid-port i.e. aconnect 16 128 or 20 128 try: aconnect -li and aconnect -lo for port lists. Did you update your kernel/JACK lately? uname -r will show the kernel version, if you're unsure. If you got all packages from your distro try to update kernel and JACKD again. If you build your jack and/or kernel yourself, rebuild both. If the fluidsynth fails. Try this: fluidsynth -a jack [-r samplerate] soundfont_file Now you have to connect the jack-ports as well. Do it like this: jack_connect fluidsynth:left system:playback_1 jack_connect fluidsynth:right system:playback_2 Does this work? See the jack-output. If your system starts jack automatically look at your "kernel console" TTY10 (ctrl+alt+F10). If you start JACK yourself look at the terminal/window, where you started jack for error messages. How about your QTractor? Did you build this one yourself. Try to rebuild as well and don't use qjackctl for connecting but use aconnect and jack_connect as well. Look for error messages in the shell, where you ran aconnect/jack_connect, then again check TTY10. If this works, have a look at qjackctl. The old rebuild or update advice applies as well. If all that fails, I'm out of it. Kindest regards Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net the Linux TextBased Studio guide ======= AND MY PERSONAL PAGES AT: ======= http://www.juliencoder.de _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user