FYI, today, I tried installing Elementary OS 7 on the same computer. After the initial installation, HDMI Audio was recognized. However after the second (I think - or 3rd) subsequent system update, HDMI Audio disappeared from the sound settings.
Not sure if this will help you track down what update is causing this?
FYI, today, I tried installing Elementary OS 7 on the same computer. After the initial installation, HDMI Audio was recognized. However after the second (I think - or 3rd) subsequent system update, HDMI Audio disappeared from the sound settings.
Not sure if this will help you track down what update is causing this?
Cheers