Hi
I had the Arc delivered today and went about setting it up. When it comes to choosing the Dolby output on the Xbox I have Dolby Digital or Dolby Atmos. Atmos can’t detect that it’s connected to a suitable receiver which makes sense because my Samsung tv only has arc and not e-arc. That only leaves me with dolby digital which doesn’t carry lossy atmos. It gives me 5.1. Tested with La La Land 4k on atmos soundtrack. TV supports Dolby digital plus which is greyed out when playing.
Thanks