Dolby Vision Flicker with Apple TV 4K

Confirmed...navigate to 'TrueMotion' within picture settings, select 'User' as mode, and then dial both settings to '0'. No flickers with Netflix Stranger Things 2 on Dolby Vision.

Just adding my voice to this. I had exactly the same issue, and he info on the link above (turn on TruMotion but turn it all the way down to zero) seems to have solved it.

Bit of a duck tape fix but it will do for now!

Thanks!

I have the exact same problem on my brand new C7 65".

The problem disappears when using other sources (non Apple TV), or switching video modes/frequency, so is obviously not a problem with the TV itself (or Apple TV), at least hardware wise (seems to be software/firmware compatibility related)

Looks like a common problem that hopefully will be fixed with a software/firmware update in the [near?] future, especially given how many people are experiencing this issue.

After playing around with the latest tvOS build that supports native format switching I think I found a workaround. Instead setting the resolution to dolby vision 4k 60fps just leave it at HDR 4k 60fps. When playing back dolby vision content from Netflix it will switch to dolby vision mode automatically during playback and it will drop back to HDR when in the menus. The flicker does not happen during playback of dolby vision content.

Hi. I started noticing the EXACT same thing when LG pushed it's WEBOS updated last week. I have a 65" LG model 65SJ8500 and everything was working beautifully fine until LG pushed the update. Now i get that flicker and it's really disappointing.

I walked into the store where I bought the television and, of course, the LG rep is telling me that it's an AppleTV issue. The sales rep actually suggested I try another '4k source, like the LG 4k blu-ray player.'

I am trying a new HDMI input (moved from input 2 to input 3) to see if that helps.

So begins the months of troubleshooting before I ask LG for my money back.

I am experiencing the same issue with a Vizio M75-E1 that supports Dolby Vision. The cable I have passes the Apple TV test and then auto-switches to Dolby Vision after the test. I created a thread about it since most of the threads here are focusing on LG tvs but this is not isolated to LG. It's happening with Vizio too. I think I even saw a thread where it was occurring on Samsung TVs too.

I see people here stating that the Belkin cable Apple recommends for Dolby Vision doesn't even resolve the issue, which is pretty sad.

How has Apple not released a fix for this yet?!

It appears netflix has implemented the automatic picture mode and framerate switching. The flickering does not happening when watching a dolby vision video on netflix. This is probably because netflix is dropping down to 30 or 24fps on the video playback. My guess is this problem is only with 60fps dolby vision mode.

Seeing the exact same here with my LG 86". Very annoying and I don't want to have to enable truemotion to work around this bug. This was not fixed in tvOS 11.2 either.

I also have some DV flickering issues quite often, sometimes every 10 or 20 seconds. Took a slo-mo video and managed to capture a frame. Looks like some of the colours are way off horizontally. Could you confirm this is the same issue you guys are having?

Being in slo-mo the video is quite long, but there are a couple of them in the beginning:

https://youtu.be/0GeZGAySdeY

https://ibb.co/cc2GD6

TV: LG C7

Exact same problem here. I had a legacy Belkin HDMI cable that passed the Dolby Vision test. I saw those (typically red) flickers every few minutes. Tried a newer Belkin cable - but not the one recommended by Apple - and issue was same. I did order the cables Apple suggested, but I'm not sure that will solve it.

I will try the TruMotion = on and set to zero hack mentioned here as well and see if that improves things (after I try the new cables).

Glad I'm not the only one experiencing this!

Hello

I experience the same thing with my LG Oled 55C7 (latest firmware, 04.70.06) an the apple TV 4K in dolby vision 60hz.

I use the Belkin Ultra High Speed 4K HDMI Cable.(LG TV<>Apple TV)

I hope that LG or Apple can fixe this issue with an update.

In regards to the flickering issue, I am having the exact same problem with my new LG OLED65C7P and my ATV4K. I am also experiencing an issue with my SJ9 sound bar in which when I turn on the ATV4K, the TV and the sound bar turn on, but there isn't any audio UNTIL I switch the input from HDMI 1 to something else and then back to HDMI 1. It's extremely frustrating; especially when you have to describe the issue to your guests that want to utilize the TV. Has anybody experienced this as well?

On 11.2.5 I am getting crazy artifacts/flickering even when set to HDR 60HZ, or 50HZ, or 30HZ and not DV. The screen turns purple/static/blue in parts and flickers. I'm even using the stupid Belkin Ultra HD cable that apple recommends for Dolby Vision.
<Edited by Host>

I'm having this same issue. I wasn't seen this before. I don't know what's causing it, Netflix app probably broken after update but it flickers a lot on HDR on my appletv. I tried turning off true motion but I'm still having the same issue.