My tv supports HDR and Dolby Vision but during the test it’s stating my TV doesn’t support it. Any help?

I have OLED65C7P with firmware 03.60.15. Oddly we don't have update to 03.60.16. Besides the point my ATV 4K is in HDMI 1 and i have no issues with Dolby at 60 HZ. Did have to enable deep black under HDMI settings. But honestly it seems more of an issue with ATV than your cable or TV itself. Have you tried to play some demo on LG TV itself to test dolby? LG Netflix or Amazon app?

Sam,

There should be a firmware update available. I had the same issue until I updated it.

Having the same issues.

Have the 2017 Vizio M-series however I’m using a Panasonic VSX-1131, 4k HDR works but DV only when connected directly into the TV.

I miss the good old days of 1080p and as long as you had an HDMI cable you were good to go lol

@Loki, what is your total HDMI distance you're using?

Have you tried using the 25 ft cable and skipping the AVR? Also is your cable an Active HDMI cable?

On Samsungs it's "Turn on HDMI UHD Color", on LGs "HDMI ULTRA HD", on Vizios "HDMI Color Subsampling"

Having this problem with Marantz SR7011 AVR and Sony A1E. Finally adjust the video setting on A4K to 4K UGD 30Hz and it worked, but not ideal. 4K UHD 60Hz works great plugged directly into A1E, so it's the AVR. Calling Marantz tech support in the morn.

Hey sorry, but your tv doesn't support Dolby Vision at 60hz

The x900e doesn’t support Dolby Vision, and I think that’s the format that the atv4k uses.

Winston Churchill, Yes there is: Search result for ultra high speed hdmi - Monoprice.com and it makes all the difference in the world with the use of many sources.

I have the Sony xbr900e TV well as a Yamaha 683 Receiver - Apple TV switches to HDR flawlessly when plugged directly, but there should be no reason the AVR can't pass the HDR through (all brand new HDMI cables). hmm

I have the latest Panasonic 4k UHD TV, linked via a Yamaha AV amp. The amp says it passes through Dolby Vision and HDR, but Apple TV won't recognise it as such. When I plug it into the TV directly is automatically switched to HDR, when into the amp it downgrades to 4k with no HDR. Hugely frustrating as other devices output HDR via the amp fine. I wish there was some kind of manual override!

I have the same problem with a brand new 2017 Vizio M-series, and a Denon AVR-S930H. If I plug the ATV directly into the TV, I can turn on Dolby Vision no problem. But using the exact same HDMI cables, as soon as I add the Denon, 4k60 Dolby Vision refuses to work. Same with 4:2:2 subsampling.

Wanted to share my setup and frustrations.

TV1: LG OLED 65" C7

TV2: Samsung 49" MU8000 (I know that Samsung doesn't support Dolby Vision but see my issues below)

Receiver: Denon AVR-S920

Cables I've tried already:

1. With LG: In-wall 60' Monoprice Cabernet Ultra Series Active High Speed HDMI Cable - 4K @ 24Hz, 10.2Gbps, 24AWG, YUV 4:2:0, CL2, 60ft, Black (50' it's rated at18 gbps and then drops, I didn't notice that before I put it in the wall)
2. With LG: 1' Monoprice Ultra Slim Series High Speed HDMI Cable - 4K @ 24Hz, 10.2Gbps, 36AWG, YUV 4:2:0, 1.5ft, Black
3. With LG: 5' Sure-Fire High Speed
4. With Samsung: 15' Monoprice Select Active Series High Speed HDMI Cable - 4K @ 24Hz, 10.2Gbps, 28AWG, 15ft, Black
5. With Samsung: In-wall 40' Aurum Hi-Speed (10.2 gbps)

Overall, I can't get Dolby Vision to work properly unless I directly connect with the short 1' cable to my LG OLED. But even then, I had moments of an unstable connection. Good news is that I have 4K HDR @ 60 HZ working fine over the 60' cable whether or not I connect directly to the TV or thru my Denon Receiver (with a 1' monoprice cable between the ATV and Receiver). I did run double 50' CAT6 to the TV from my AV closet so hopefully I can leverage that connection as I'm not able to swap out the 60' HDMI anymore. If anyone knows a good way to connect this I'd love recommendations.

As for the Samsung TV, I'm having issues getting any stable connection, regardless of quality/framerate. Can't figure out why the Samsung and ATV won't cooperate. I've connected the ATV to a friend's Samsung 4K HDR set and it works fine with a 5' cable (can't recall the brand or specs). I guess it's my sub-par cables.

I'll report back once I confirm that my firmware is updated on all devices and my UHD/HDR settings are turned on (which I'm almost certain I already did).

It also fixed my Xbox One X issue. I had an issue when I would turn on 4:2:2 chroma. Once I switched the cable, gone. Turned on 4:2:2 and forza 7 works perfectly in 4K and HDR10.