Apple TV picture darkens whilst watching

[InAustralia]

I have an Apple TV 4K, but have been experiencing an occasional issue. Often when watching a show (Netflix, Disney+, Plex), the image will flicker 3 times and then the image shown is noticeably darker than before.

I don't know why this happens. There is no set time after watching when it would happens, no particular shows, no set time, it just seems random.

I did some google searching which suggested tuning off Light sensitivity or Dim Flashing Lights (but these settings were already turned off). I have reviewed my TV and it is not any settings on the TV as the darkening of the screen is only when watching something via the AppleTV.

Any thoughts or suggestions on why the ATV does this or what could be the cause?

 

[aperfectcircle]

Is this happening for all content or is it possibly just Dolby Vision content? What brand of TV are you using? If it’s just Dolby Vision and you’re using a Sony TV, this is a long standing bug where DV on Sony via Apple TV is dark compared to watching the same DV content through native apps on the Sony.

 

[InAustralia]

Is this happening for all content or is it possibly just Dolby Vision content? What brand of TV are you using? If it’s just Dolby Vision and you’re using a Sony TV, this is a long standing bug where DV on Sony via Apple TV is dark compared to watching the same DV content through native apps on the Sony.

I have a Samsung 55" Smart TV (can't recall the model number). The issue happens watching any content (not just Dolby Vision).

 

[aperfectcircle]

I have a Samsung 55" Smart TV (can't recall the model number). The issue happens watching any content (not just Dolby Vision).

Hmm how have you set the display options on the Apple TV? The general rule is to set the Apple TV to 4K SDR then turn on both match content and match frame rate, that way the Apple TV will output to match the content you’re watching.

You could try setting the Apple TV to 4K SDR and then have content and frame rate matching off - that will force SDR output and at least allow you to see if the issue still occurs which would then suggest its possibly an issue with HDR output.

 

[InAustralia]

Hmm how have you set the display options on the Apple TV? The general rule is to set the Apple TV to 4K SDR then turn on both match content and match frame rate, that way the Apple TV will output to match the content you’re watching.

You could try setting the Apple TV to 4K SDR and then have content and frame rate matching off - that will force SDR output and at least allow you to see if the issue still occurs which would then suggest its possibly an issue with HDR output.

Thanks for the assistance, I currently use 4K HDR and already had content and frame rate matching turned off, but I will switch to SDR and see if that does anything.