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Dave,

wpctl is part of WirePlumber (.) Is the associated d?mon running? ()

The ArchWiki—usually an excellent vade mecum— offers some advice on device renaming at . However, there is also a warning at the top of section 2 () that

This article or section is out of date. Reason: WirePlumber's configuration format is changing

which is a tad worrying. It quotes a reference which explains that the format is changing from LUA to JSON. () If you're still with me, the good news is that section ArchWiki 2.1 starts off by talking about “PipeWire-flavored JSON objects”, but then talks of LUA. So that wiki, until updated, is probably best thought of as providing inspiration. More accurately, the wiki describes, AFAICT, WirePlumber version 0.4. The blog describes what WirePlumber version 0.5 will look like, with some very useful looking hints along the way. (N.B. No-one said that this would be easy, now did they?)

Personally, I've not experimented with this, but expect to have to shortly when installing Ubuntu 24.04.1 on a local test machine. One might note that the change to PipeWire came from Debian 12 (bookworm) upon which Ubuntu 24.04 is largely based, and of course so is LMDE 6, as noted at .

It looks like a learning experience for both of us. At least pavucontrol now offers in-built loopbacks, labelled Audio Pro (or is it Pro Audio?), a definite improvement from setting them up by hand, as it were.

73, I feel your pain—be grateful it's not OSS!

Robin, G8DQX

P.S. Technically Ubuntu is based on Debian Sid, in turn based at the moment on Debian bookworm, should one be overly pedantic.

I found that the entry in ~/.Profile that specified "pactl load-module module-device-manager" (added by myself to enable device renaming under LMDE5) was not loading that module, as it presumably does not exist under the new OS.? It was also preventing the command line tools such as pactl and wpctl from connecting to their associated "servers"? (Timeouts etc from the command line.)