[LAU] jack: interface selection has no effect

[Len Ovens]

On Sat, 9 Aug 2014, Max wrote:

> selecting a different interface in qjackctl has no effect.  i can't
> use the external soundcard, because jack stays always with the
> internal one.
> any ideas what causes this symptom?
>
> i am running pulse on top of jack like this:
> http://trac.jackaudio.org/wiki/WalkThrough/User/PulseOnJack

That is the hardest way to do it. qjackctl expects (as installed) to use 
jackdbus. If you wish to use qjackctl with jackd you have to turn dbus off 
in the qjackctl settings. However, if jackd is started externally and not 
from qjackctl you will still not be able to stop jackd.

The only reason to do things this way is that you are using jackd1, if you 
are using jackd2, and you have dbus running in the session anyway, then 
run jackdbus. If you wish to run it from the command line use jack_control 
start. If you start it with qjackctl first with the settings you want, 
that will be enough, other wise you will have to learn how to set 
parameters with jack_control. There is no man page so try jack_control 
--help


--
Len Ovens
www.ovenwerks.net