AppleTv no Atmos out to Denon AVR (x3800h)
The AppleTV used to work fine on my Pioneer Receiver for Atmos sound. Got a new receiver, Denon avr-x3800h, and while I'm getting great Atmos from my Blu-ray player the best I can do is get 5.1 sound from other sources (Netflix and Amazon Prime for example). Under settings-audio my only choices are auto and 5.1. When 5.1 is chosen then my options are stereo and 5.1.
This has got to be an easy fix and the obvious stuff is covered. The AppleTV is not recognizing the Denon as being Atmos enabled would be my guess. o, any Apple gurus out there know what exactly it is I need to change on my receiver?