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Comment by smileybarry | Hacker News Reader

Speaking of screens, I wonder if they fixed the jelly scroll. It doesn’t bother me that much on my mini, but it would be ridiculous to keep that flaw as-is in the newer gen.

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The real fix would be for them to stop being so stingy with 120hz panels, as long as they keep using 60hz ones they're going to be prone to jelly scrolling in one orientation or the other. With 60hz the best you can hope for is that the orientation you use the most often is the good one this time.

The what?

They are referring to the screen lagging/tearing while scrolling

I'm guessing Apple is using an IPS panel meant for landscape orientation (i.e. the image scans from the top/bottom) in a device mostly used in portrait orientation. This causes rolling shutter distortion when scrolling contents.

It's basically screen tearing, apparently because the top and bottom of the display (or left and right in other orientations) refresh at different rates. iFixit suggests its a controller issue.

> Update, 9/28/2021: In response to our inquiry, Apple has told us that the "jelly scroll" issue on the 6th-generation iPad mini is normal behavior for LCD screens.

> Update, 9/30/2021: An iFixit teardown suggests that the iPad mini's more noticeable scrolling issue is a byproduct of how the display controller is mounted.

https://arstechnica.com/gadgets/2021/09/2021-ipad-mini-suffe...

FWIW, my 5th Gen Mini doesn't have this issue.

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