Also having this with a new Sonos Arc and Samsung 55" Frame. Sonos Arc works with e-arc disabled and reports "Dolby Atmos" / "Dolby Atmos (DD+)" when watching Prime Video Jack Ryan. Should I be expecting "Dolby Atmos TrueHD"? BUT every third time I turn on the TV I get either no sound or one/off again sound and have to reboot both TV an soundbar. Sounds like both just don't play nice togeher. They are both completely fine and work great - Arc on its own or with other TVs and the Frame works fine on its own. Sounds like both Samsung and Sonos might have some work to do here? The sound is incredible when it does work.
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