Comment 79 for bug 1834771

Apologies Uriel Tunn for not getting back to you on your message #74.
I must not have received the email notification at the time.

Anyway, i tried what you suggested and no luck...

e4310:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: 92HD81B1X5 Analog [92HD81B1X5 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
e4310:~$ card=0
e4310:~$ dev=7
e4310:~$ pulseaudio --kill
e4310:~$ sudo rm $HOME/.config/pulse/*
e4310:~$ sleep 2
e4310:~$ wait
e4310:~$ pulseaudio --start
e4310:~$ pacmd load-module module-alsa-sink device=hw:$card,$dev
e4310:~$ pacmd set-default-sink alsa_output.hw_${card}_${dev}
Sink alsa_output.hw_0_7 does not exist.
e4310:~$ pacmd set-sink-volume alsa_output.hw_${card}_${dev} 35000
No sink found by this name or index.

Tried with the latest Ubuntu 22.04 and Fedora 36 and same situation,
HDMI is not recognised for sound, but getting pictures is fine -> so nothing wrong with the HDMI cable to the monitor.
Thankfully I've just connected a set of external speakers using the 3.5mm jack and just accepted sound across hdmi will not work with kernel later than 4.15.