Can't get HDMI audio working Ubuntu 22.04

[dwstix86]

Hi I have a Radeon RX Vega connected via HDMI to my Sony TV, but cannot get any audio working. I'm running Ubuntu 22.04. I've tried editing grub and adding the intel_iommu=on,etc line in and restarted, no change. The audio settings seem to have the correct output device, radeon HDMI (there are only 2 to choose from the other is the SPDIF which is not selected). Please advise!

Thanks.

[MAFoElffen]

Have you ran

alsamixer

...and ensured that it is not muted?

That is often overlooked there.

[dwstix86]

None of the outputs are muted in alsamixer, but none of them are showing hdmi as an output? Only spdif

[MAFoElffen]

If you run the UbuntuForums 'system-info' script in detailed mode by appending a "-d" startup option... It will run in detailed mode and supply you with a very detailed sound/audio section of the report.

Select the upload option and post the URL of the pastebin so we can look and see what is going on.

[dwstix86]

Link to log file: https://termbin.com/xhh0

Thanks for your time, much appreciated

[MAFoElffen]

I am seeing all the HDMI sound devices shown...

Ensure that when you go to Settings > Ouput > Output Device... That it is set to "Digital Output ()S/PDIF).

If that is set and there is still no sound, then I see you Linux Boot Line set to "quiet splash". Open file /etc/default/grub, with sudo permissions and change the line

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

to

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1"

Save. Exit. Then in terminal

sudo update-grub

If either of those does not work, then please post the output of

pactl list short sinks

[dwstix86]

My audio output gives me to options: "HDMI / Display port 6 - Vega 10 HDMI audio" and "digital output SPDIF", the sound doesn't work with either one.

[dwstix86]

I changed the grub line, still no audio no matter which output device i select.

I tried pactl, the audio initially shows as "suspended" so i tried killall and then the HDMI shows as "idle" but once i start playing a media file, it shows as "running" but no audio!

=*(***

[dwstix86]

i thought maaayyybe it was those dbus error messages so I did sudo apt install dbus-x11 which got rid of the error messages....but alas no audio. =*(***

[dwstix86]

Any suggestions? Were you able to view the attachments ok?