Howdy Folks:

Here's a seemingly trivial requirement that has me stymied: I have a Jack 
client (external, built against 0.102.20) where it occasionally makes sense to 
connect an output port to an input on the same client.  QJackCtl happily makes 
the connection; the process callback delivers data as expected, but it's all 
zeros for the connected input port!  I can route the same client output port to 
a physical output (ALSA backend) and hear the expected audio.  Likewise, a 
physical capture port connected to the input on the client receives data from 
the card as expected.  It's only the "loopback" within the same client that 
doesn't want to go.

At first I suspected that the JackPortIsTerminal flag might have some bearing 
on this, but changing this value seems to have no effect.  Am I missing 
something blatantly obvious here, or is this something that is just not within 
the scope of Jack to allow?

Any pointers greatly appreciated.

Cheers!


|-------------------------------------------------------------------------|
| Frederick F. Gleason, Jr. |               Chief Developer               |
|                           |               Paravel Systems               |
|-------------------------------------------------------------------------|
|  ...one of the main causes of the fall of the Roman Empire was that,    |
|  lacking zero, they had no way to indicate successful termination of    |
|  their C programs.                                                      |
|                                            -- Robert Firth              |
|-------------------------------------------------------------------------|

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