[ubuntu-studio-users] Pulse and Jack

[Kaj Ailomaa]

On Tue, May 6, 2014, at 01:28 PM, Mac wrote:
> I have a script that does a bunch of connections when I start Jack via
> Qjackctl.
> 
> It connects various things like calf plugins, zita meters/xovers, etc.
> and
> my AF12 into a tri-amp system.
> 
> I figured this out under AV Studio, then moved it to UDS 12.04.
> 
> The other day I built a system with UBS 14.04.
> 
> The script still works, but...
> 
> By default when Qjackctl starts jack it auto-magically connects the Pulse
> output to the first two channels on my AF12.
> 
> Then my script adds my desired connections, except I don't want to two
> connections mentioned above.
> 
> I don't remember if I actually figured out how to stop the connection
> previously.
> Or, if it does it differently in 14.04
> 

One difference should be that before PA would autoconnect to all the
outputs of the audio IF. Now, it only connects to two by default.
In /etc/pulse/default.pa:

load-module module-jackdbus-detect channels=2

If you'd rather not have the sink and source loaded by default (and
automatically connect), you can just comment out that whole section,
like so:

# .ifexists module-jackdbus-detect.so
# .nofail
# load-module module-jackdbus-detect channels=2
# .fail
# .endif

> In any case I have also not been able to find enough info on the web to
> get
> me to the point where I can even find where the auto-magic connection is
> happening (and thus figure out how to stop it).
> 
> Help an addled old mind. Thanks. ;)
> 
> Regards,
> Mac
> -- 
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