Hi @chester ! Welcome to the balena forums – and thanks for this detailed question!
I am not too familiar with MPV, but from the logs it appears that it is trying to use some components that are failing (SDL, Jack, ALSA). First thing that comes to mind is that maybe you need to install some missing package into your image. In particular, maybe some ALSA-related package is missing. (Or maybe SDL – though the MPV folks suggest to use the SDL audio driver only as a last resort, we should probably try ALSA first).
Other than that, there are a couple of things we do to troubleshoot this:
- Please try adding
-vto the command line you when manually runmpv. This will enable verbose output. - Try running
mpv -ao=helpandmpv --audio-device=help. This will help us to identify which drivers and devices are available. - You can also try to force a different driver, e.g.,
mpv -ao=pulse.
I hope this helps! If you need further assistance, please share your new findings when trying the commands suggested above.
Cheers,
Leandro