I wonder if I can ask for some help here? I can only get my Apple TV and 2020 LG OLED55CX5LB to enable Dolby Vision if I connect the Apple TV to the HDMI 1 port. If I use the HDMI 2 (eArc) port the signal only be recognised as HDR.
I am using the same cable to both ports, and I deep colour mode is on for both HDMI ports. Is there something I am doing wrong?
This is important to me because I want to route the Apple TV via my Denon AVR X6700H using eArc to the HDMI 2 eArc port. Again, like with my Apple TV, if I connect the Denon to HDMI 2 eArc, it says only standard 4K HDR is available. Dolby Vision is only available on HDMI 1. Same cable to both ports.