I tried Dolby Atmos files with a nightly build a couple of month ago and they worked for me. I then took a break and now that it is available I installed 10.0.0 for the Pi 4 and noticed that with the (hopefully) same passthrough settings Atmos sound does not reach my receiver. Is it not yet in the stable release (do I need to stay on nightly builds for this to work atm)?
UPDATE
Nevermind.
Started working after inserting cable to hdmi1.
Weird.
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Same here. Testing on RPI4.
Installed latest official v10. Enabled Audio Passthrough (didn't change anything else). Doesn't work. Only Stereo gets to my AVR.
Switched "DTS support" ON and then DTS appeared on my AVR screen. Not DTS-HD.
File is DTS-HD.
Repeated same with latest nightly - same.
Normally my receiver shows either DTS-HD or MULTI CH INPUT on the display.
So is DTS-HD ir audio passthrough officially supported or not?