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Racineur

macrumors 6502a
Original poster
Jun 11, 2013
577
176
Montréal, Québec
Hello. Bizarre behavior of my ATV 4K (2021). Many times, the image starts blurry for a few seconds then settles for clear. Mostly happens with YT and Prime Video HD videos. ATV is plugged in 2.0 HDMI port with a "supposed" Certified Upgraded HDMI 2.1. TV has 2 HDMI 2.1 ports. Should I connect the ATV in one of these ports? Thanks.
 

conundrumz

macrumors member
Mar 18, 2008
31
9
Arizona
I've had the same problem for months. I have it with DirecTV Streaming. Not all channels. Thought it was my LG OLED but I think it's too erratic to be the TV. Maybe the internet connection?
 

BB1970

macrumors 6502
May 19, 2009
435
1,158
This is just a guess, but I think the blurry image is a downscaled image like something at 480 before the HD “clicks” in. Almost like how a thumbnail is used to convey an image in the cloud, but when you click on it, sometimes there’s a brief blur before it goes to a higher resolution. The servers on Amazon and the like must respond to some identifier saying ”this is an Apple TV, not an iPhone” and switches over. Again, this is just a guess.
 
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Basic75

macrumors 68020
May 17, 2011
2,049
2,400
Europe
This is just a guess, but I think the blurry image is a downscaled image like something at 480 before the HD “clicks” in. Almost like how a thumbnail is used to convey an image in the cloud, but when you click on it, sometimes there’s a brief blur before it goes to a higher resolution. The servers on Amazon and the like must respond to some identifier saying ”this is an Apple TV, not an iPhone” and switches over. Again, this is just a guess.
Just starting small and then ramping up the bitrate and resolution instead of starting with the highest and falling back if the network can't keep up.
 

HDFan

Contributor
Jun 30, 2007
7,175
3,222
Just starting small and then ramping up the bitrate and resolution instead of starting with the highest and falling back if the network can't keep up.

Yep. Scales up as the app senses more available bandwidth.
 
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