[LAU] jack: interface selection has no effect

[Max]

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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

m
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