So this is the manual for the X800M2 on Sony's site. Do you think since there is only On or Off and not an Auto setting it means that DV won't Auto Detect?
From manual: [Dolby Vision Output][On]: Output 4K/Dolby Vision signals via 4K/Dolby Vision-compatible devices.[Off]: Automatically outputs HDR signals when you connect any 4K/HDR or 4K/Dolby Vision-compatible equipment.
Marantz SR7012, LG OLED55C7P, Sony UBP X800
Anthem MCA 525, Panamax M-5400
Kef R5, R2c, Paradigm MilleaniaOne Surrounds/Rear Heights
Kef Q150 Front Heights, HSU Research VTF-2 MK4 dual subs