Dolby Vision/Hue Sync Not Working

GUYS I FIXED IT. I MADE AN ACCOUNT JUST TO SHARE.

Anyone reading this, I am sharing after 1 day of excruciating troubleshooting. Few things that are NOT factors: cables (I use fairly generic cables, only one of them is 8K and is not in the chain.)

My setup is ATV4K -> Hue Sync Box -> LG C2 -> (eARC) Sonos Beam

Dolby Vision (60Hz) and Dolby Atmos work, together with Hue Sync.

What I had to do:

1. Swap to port 2 or 4 of the Hue Sync Box if not already using it (higher bandwidth)
2. Hue Sync App go to Sync tab -> Three dots -> Advanced -> Dolby Vision enhanced compatibility and switch it on. It will give a warning about "degraded image" ignore it, it doesn't do anything. Your picture will likely reset, and your TV will show HDR mode. This change set my ATV4K back to a generic HDR mode, not DV and reset most image settings.
3. Sync should now be working correctly, turn it on to verify (duh ofc, as it is basic HDR and not DV)
4. Go back to ATV settings and switch Dolby Vision 60Hz on. It should now keep the sync AND work with DV.
5. Change whatever additional picture/audio settings you want, they don't affect anything.

I have now watched several movies with Dolby Vision + Atmos + Hue Sync all working correctly.

Apparently the "enhanced compatibility" setting used to be called HDMI compatibility (you can see this in older Reddit threads).

You're welcome, Merry Christmas and enjoy <3

I have the new atv 4K going into the Phillips vue sync then to my LG tv. I set the video mode to 4K DV 50Hz and it worked with the sync just fine. 4K DV 60 did not. I hope this helps others.

After a lot of playing around with different configurations, it seemed like playing with the audio format within the AppleTV settings finally fixed the issue for the Hue Sync app to finally show that it was connected and syncing. My final AppleTV configurations are audio format: Auto, Atmos Available. Video Format: 4K Dolby Digital. My setup is, AppleTV > (HDMI cable: premium high /HEC - I think the one that came with the Hue Sync but I don’t recall) > Hue Sync Box > (HDMI cable: AmazonBasic) > TV (Sony) | TV eARC > (HDMI cable: Visio sound bar supplied cable) > Sound Bar (Vizio)

Hope this helps.

I had the same issue just after buying a Hue Sync. The DV video was glitching with a gray snowy screen.

I solved the problem by setting my ATV on 4K DV 60hz and blocking the automatic frequency change upon the content.

Now it perfectly works.

Simply factory reset and erase all settings on the Apple TV then setup again. Leave all connections. All my equipment is plugged into the sync box then to tv. Then from tv earc to receiver earc. Since then Dolby vision has worked flawlessly.

Hi Hero,

you are not alone. I am facing the same issue. It was working before with the Apple TV 4K gen 1.

Since I replaced them with the newer model, the issue exists. The only workaround to get Hue Sync working is to set the video mode from ATV to 4K HD, but 4K Dolby Vision freeze immediately my HUE Sync

Completely reset Apple TV worked for me

I see… the next steps I will try is

• reset the entire ATV video Settings
• change cables and reboot all devices inside the chain to exclude any sort of potential CEC / Handshake issue

I keep you posted

Just another update. Reset of ATV Video settings was not helping at all.

I red some related posts on Reddit and couple of guys seems to have solved it by changing the HDMI cable to a specific one from Belkin. I ordered that for testing right now. Will arrive Wednesday

we will see

I’ve been having this issue for a while. I do not have the 2022 4K, but I have the 2nd generation.

When I first purchased the AppleTV, it worked fine with DV, however, it was broken some way.

I reached out to both Apple and Hue and they both pointed to fingers at each other pretty much, HOWEVER, what was ultimately told to me is that there are different types of DV and if your TV and AppleTV aren’t using the same type, the Sync of DV will ultimately not work.

doesn’t make sense but it sounds like it really is an issue with AppleTV 4K, but the hardware compatibility also isn’t there as Hue Sync Box uses “pass through” tech.

Contact Hue

Hi and good morning.

It took a while as my devices are all inside a Rack.

Unfortunately, the recommended cable was at least in my case not helping at all.

Next step over the weekend is to exchange the ATV with the old ATV 4K which went to another room for testing.

in the meantime I’m running 4K HDR as setting and it works. But DV isn’t