Re: USB audio hotplug

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On Mon, 9 Mar 2020, Jacek Konieczny wrote:

On 07.03.2020 15:35, Mac wrote:
I have used UbuntuStudio for quite a while. And, when IO plug in a USB audio device it magically appears on the port list (for example in Carla).

> I find myself attempting to set up a Debian 10 system and would like the same to happen.

It is the 'autojack' script from the UbuntuStudio Controls package that does this magic. Maybe it is possible to install that package in Debian, or you could just try to update and install that script manually.

You can either remove Cadence which, because it does the same kinds of things, does not work at the same time. Or you can hack autojack to remove most of it's funtionality except the part that monitors the system dbus for USB audio device plugin events and runs zita-ajbridge to connect it to jackd that Cadence has already run. Or create your own script that does this.

That is only if using zita-ajbridge does what you want. It will not change the jack master to the USB device when it is plugged in unless the whole of studio-controls is used. As far as that goes, this second option is the better of the two options in my opinion.

Note that if you only use the utilities Cadence ships with and not Cadence itself... and never run Cadence.... feel free to hack the Studio-controls package to remove the part that does not allow the two to be installed together or unpack the thing with an archive manager and install the bits you want manually. However, it is unlikely the author of either package will support that kind of use. :)

It should be possible to run cadence and Studio-controls together if Studio-controls was to detect Cadence as being used and stayed out of it's way mostly. But that has not been done (and is not likely).

--
Len Ovens
www.ovenwerks.net
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