I just hooked my 820 into my system (LG C7, Onkyo TX-RZ810 w/ATMOS speakers enabled), and already have an issue with NetFlix.
When I select a know Dolby Vision and ATMOS movie ("Bright") in the NetFlix app on my LG TV, it displays as both DV and ATMOS as long as the receiver is powered off or HDMI cable disconnected. If I start the movie, and then power on the receiver, The Onkyo will process and play ATMOS audio. Even if I select a different movie ("Roma") without disconnecting/shutting off the receiver, the new movie will also play Dolby ATMOS. I've come to accept this quirk of the LG/Onkyo handshake issue, as long as I get ATMOS audio.
((EDIT: Firmware update on ONKYO receiver seems to have corrected the NetFlix app. It now displays both Dolby Vision and ATMOS in the menu selection, and receiver switches to ATMOS correctly. The firmware was already updated to the latest version according to the software checker on the other two devices.))
However, I CANNOT get ATMOS to work from the 820 NetFlix app, with any combination of connections. Dolby Vision is fine.
I have tried connecting the HDMI VIDEO OUT to the LG HDMI 1, and HDMI AUDIO out to the ONKYO. I have tried disconnecting the HDMI AUDIO, and using only the LG Audio pass-through. I've tried connecting the VIDEO out directly to the receiver, and then passing the video to the LG TV.
I've changed various HDMI and AUDIO setting in the 820, and nothing seems to work. I currently have Bitstream selected for both Dolby Audio and DTS/DTS-hd, with BD-Video Secondary Audio turned OFF.
It this another shortcoming of the NetFlix app on the 820? Or, is this some combination of settings in the 820?
Anybody have an Onkyo RZ-series receiver connected to an 820 that does pass ATMOS from NetFlix? (I have no ATMOS disks yet to test with.)
It's not a deal breaker. I can continue to use the LG app. I was just hoping everything would work out of the box.
As an aside I have this question - Why is "ROMA" streaming in Dolby Vision? 12-bit black and white?