Broken 5.1, 6 channels audio, slow video after Kodi 19 upgrade


I recently upgraded to Kodi 19 via OSMC on my rasbperry pi 3. For some movies with 5.1 audio, the sound was not working anymore and the video was lagging/slow.

In the logs I could find errors such as:
[drm:vc4_hdmi_audio_prepare [vc4]] ERROR Not able to map channels to speakers (-22)
ERROR : CActiveAESink::OpenSink - no sink was returned

I just spend one hour trying different settings but it turns out it was just the System / Audio / Number of channels → Set it back to 2.0 that did the trick.

I hope it can help others!

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