Unable to use HDR on AppleTV 4k through receiver
I have an AppleTV 4k that is connected to a Yamaha RX-V679BL receiver and an LG OLED 4k TV.
I cannot get the AppleTV to work on HDR through the receiver, it does work on SDR.
The AppleTV HDR works if connected direct to the TV.
My 4k UHD BluRay DVD Player displays HDR if run through the receiver to the TV.
I have tried different HDMI cables, updating firmware, different AppleTV apps, and of course rebooting.
This is not an issue with specific HDMI ports on the TV or Yamaha. I have used the same ports and cable as the DVD player to indicate the cable and ports work for HDR.
I do not see any settings on my LD OLED TV or Yamaha that would prevent the AppleTV HDR to work when run through the receiver but allowing HDR on direct connect to the TV.