I run kodi on a Intel Nuc.
The audio output is configured so kodi decodes audio streams and output 4.1 channels, through the HDMI output. All was working fine until last week. I shutdown everything before I left, and when I returned and restarted everything, no audio at all.
I checked to see if it was an amplifier problem, but, no, it was kodi not sending anything. I upgraded LibreElec (8.2.4 -> 8.2.5), and after reboot, audio worked again. I though a param was lost during the shutdown or so...
But last night, I tried to play a multi-channel movie (DTS): no sound! If I configure the output to limit to 2 channels, it works. But as soon as I have more than 2 channels, nothing. I tried to re-enable the audio passthru: same, no audio when playing the movie (I see the PCM label blinking on the amplifier, saying there is a stream missing or problem). But all works fine on music, or with UI sounds (2 channels only). I tried to change a lot of params, without any success.
Any idea what happens? Software? Hardware? I'm puzzled...