Ubuntu 24.04 Audio Passthrough



There are several threads here about Ubuntu and Passthrough, some saying it’s working, some saying it’s not.

I tried to get it running, but no success:
Platform: NanoPc-T6 (Rockchip RK3588, 16GB Ram)
The NanoPC-T6 connects to a Sony AVR which is connected to a LG-TV. Passthrough was working when using different Platform and OS.
OS: Ubuntu 24.04, from Here
Kodi 21.01: self compiled (following this), starting with ‘–audio-backend=pipewire’, in gbw-mode
Pipewire 1.0.7 (upgraded from 1.0.5 which comes with Ubuntu 24)
Wireplumber 0.4.17 (old lua-file-format, with ‘apply_properties = {  [“iec958.codecs”] = “[PCM DTS AC3 MPEG MPEG2-AAC EAC3 TRUEHD DTSHD ]”,’

There is no PulseAudio running, but Pipewire, Pipewire-Pulse and Wireplumber.

What do I see:
– no option ‘Passthrough’ in Settings -> System -> Audio
– Log-File: ‘m_streamTypes     : No passthrough capabilities’

Here is the link to a debug-log-file: kodi.log

What am I missing?
Thanks for your help!