I can see the same thing here.
No HDMI device can be found in the output devices list,
My trace from the control center shows that the HDMI ports are
unavailable, this would be why ...
>>>>>>>>>>>>>>>>>>
SET PROFILES HDMI / DisplayPort 3
create_ui_device_from_port, direction 1
description HDMI / DisplayPort 3
origin Built-in Audio
port available 0
SET PROFILES HDMI / DisplayPort 2
create_ui_device_from_port, direction 1
description HDMI / DisplayPort 2
origin Built-in Audio
port available 0
SET PROFILES HDMI / DisplayPort
create_ui_device_from_port, direction 1
description HDMI / DisplayPort
origin Built-in Audio
port available 0
SET PROFILES Microphone
create_ui_device_from_port, direction 0
description Microphone
origin Built-in Audio
port available 0
** Tags added: soundnua
** Changed in: gnome-control-center (Ubuntu)
Importance: Undecided => Medium
** Changed in: gnome-control-center (Ubuntu)
Assignee: (unassigned) => Conor Curran (cjcurran)
** Changed in: gnome-control-center (Ubuntu)
Assignee: Conor Curran (cjcurran) => David Henningsson (diwic)
** Changed in: gnome-control-center (Ubuntu)
Status: Confirmed => Triaged
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https://bugs.launchpad.net/bugs/961286
Title:
HDMI audio device detected by the system but not listed in Sound
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