Dear Bob,
Am 03.04.2017 um 19:22 schrieb Bob van der Poel:
Ummm, gotta ask ... what dialog? I don't want to
turn hijack a thread ... but I use Ubuntu (and PulseAudio). Would love a dialog to get
jack going.
Note: I'm using a German localization, and I'll translate the menu items, but they
might actually be named differently.
start 'pavucontrol' (maybe you have to install it first: sudo apt-get install
pavucontrol)
then the most right menu should be "Configuration" .
There you you should see your sound cards.
Choose the one you would like to use within jack, go the profile menu, where you can
select between "stereo, 5.1, ..".
The last option is "off". Once you choose that, pulseaudio releases it and it
can be used by jack.
You still have to choose that sound card within e.g. qjacktctl as the desired sound card.
That's all I had to do.
Good luck,
best regards,
Peter