No HDMI audio output

[Brian J. Murrell]

I have my (new) computer connected to an HDMI monitor that has audio
output but I don't see any devices for that audio on the monitor in
pavucontrol.

On my old computer I did see these HDMI outputs for this monitor.

Is it expected that any HDMI monitor with audio output should present
HDMI outputs with Pipewire or is this conditional on certain hardware
capabilities of the video hardware in the PC?  If yes, how can I
determine if my PC has required hardware to utilize audio on HDMI?

I'm really not sure what kind of information would be helpful here but
here is what lspci says about my video hardware:

00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)

Is there anything else useful I can provide to help get to the bottom
of this?

Cheers,
b.

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