On 28/03/2020 23:37, Lorne Tyndale wrote:
  Mike,
 Several of the Jack2 packages are compiled with dbus enabled.  This
 shouldn't be a problem, but on some systems dbus doesn't get started
 unless you are running X.  I've run into this on Ubuntu/Debian systems
 quite a bit.  Jack doesn't actually need X to run, it is possible to
 compile it without dbus.
 Sometimes work around this and run jackd2 by doing a dbus-launch to get
 the dbus daemon started.  An alternate is to try Jack1 as you've
 indicated.
 Admittedly for a few reasons I often prefer Jack2, but for what you're
 doing it really doesn't matter which you use.
 
I went jack1 and it now seems to work, I was using jack1 elsewhere.
I had not realized apt install jack (maybe jackd) did not install what I 
wanted!
Thanks!
-- 
Mike Phillips
Coast FM.