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kplavery33

macrumors newbie
Original poster
Sep 22, 2017
11
3
Wisconsin
So I noticed that every so often while watching my AppleTV on my 4K Vizio TV I get this green pixel looking screen and then it goes away. Wondering what it could be. I have my AppleTV going through my Onkyo receiver to the TV. I also have my XBOX going the same way and there is no green flicker. So I am thinking its either a HDMI cable or the AppleTV. Thoughts?
 

400

macrumors 6502a
Sep 12, 2015
760
319
Wales
Do the cheap first.
Swap cables, between the worker and suspect device. Feed the Apple TV direct for a while and see if it is the amp.

Try another TV input.

(Edit, one is assuming you are using the correct cables for 4k and that the xbox is providing a 4k signal).
 
Last edited:

kurticus

macrumors newbie
Jan 8, 2016
21
4
Chicago
I had a similar issue right after I got my first Apple TV 4K with my 65" Sony 4K HDR TV. Fixed the issue by replacing the HDMI cable with a better quality one.
 

Miggymacdaddy

macrumors newbie
Jul 24, 2022
1
0
which hdmi cable did you change out? The one connected to Apple TV to receiver or tv to receiver? I’m also having issues with my Apple 4K tv (1st gen 4K)
 
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