Re: Cannot set -C and -P devices using qjackctl

[Paul Davis <paul@xxxxxxxxxxxxxxxxxxxxx>]

On Tue, Jul 10, 2012 at 4:05 PM, James Harkins <jamshark70@xxxxxxxxx> wrote:

At Tue, 10 Jul 2012 16:02:37 -0400,

Paul Davis wrote:
>
> On Tue, Jul 10, 2012 at 3:58 PM, James Harkins <jamshark70@xxxxxxxxx> wrote:
>
>     OK... I am having a really strange problem with qjackctl. Ubuntu 12.04, Jack 1.9.8, qjackctl
>     0.3.8.
>
>     I've chosen my USB audio interface for capture and playback -- .jackdrc looks like this:
>
>     /usr/bin/jackd -P70 -dalsa -r44100 -p1024 -n2 -D -Chw:1 -Phw:1,0
>
> this is pointless. there is no difference between this and -d hw:1

Well, that's how qjackctl sets it up. Perhaps that's a bug or enhancement request for qjackctl: to optimize the command line if -C and -P are the same.

But I don't believe this is relevant to the problem at hand, which is preventing me from using my USB box.

no, but you shouldn't be using the input + output device selectors at all, ideally. these were a bad idea that are useful in only a very few limited circumstances.

you should be selecting the device for JACK to use from the "interface" selector at the upper right of the setup dialog's options panel.

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