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"Wobbly" page when scrolling in safari with iPad 3

I've noticed a very strange "issue" with the scrolling on my iPad 3, It looks a little "wobbly" with quick up and down scrolling on a web page. It's like the left side is slightly lagging behind the right.


Anyone else have this "issue"? I haven't heard anything about this.

Posted on Mar 17, 2012 9:20 AM

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Posted on Mar 17, 2012 1:27 PM

I noticed the same issue, though only when scrolling in portrait mode. I don't see the distortion during landscape scrolling. My question would be whether all iPads have this glitch, or only some?

23 replies

Mar 17, 2012 9:26 PM in response to sbojeevets

I noticed it on an iPad at the Apple Store. I was scrolling through photos horizontally in landscape mode when I noticed the vertical edges of the photos became slightly tilted. It is as if the top of the photo could not catch up with the bottom. In Portrait mode, when swiping through app pages, icons seemed to stretch in when moving in one direction, and compress in the other.


I did not try another iPad and therefore cannot say if it is a common issue. iPad 2 does not have this issue.


My sister could see it (barely) after I told her. My niece couldn't. Therfore It is possible that some people are more sensitive to this phenomenon than others, just like some people can see the "rainbow effect" on DLP projectors whereas others cannot.


I'll check it out on another ipad when I have a chance to go to the Apple Store again.

Mar 18, 2012 12:45 PM in response to sbojeevets

I just noticed that I can see my iPhone 4 doing the same thing. I never noticed it until I saw it on the new iPad.


I started playing PC games back in the '90's. Actually, I wrote some stupid games on the Tandy 64 in the '80's, but let's not go there. On PC games, you fight this battle of vertical synchonization vs. frame rates. You either have high frame rates or good vertical sync, but not both. I think the high pixel count and prominence of straight edges allows us to see an effect that resembles Vsync both off and on. It's a mix. You either have stuttering frames or tearing frames. To be perfectly honest, I think we're seeing a perfect blending of the two. I'll check iPads at the Apple store, but I bet it's normal.


We need to be happy with this cutting edge technology and move on. It's hardware and software limitations, not hardware defects.

Mar 18, 2012 1:03 PM in response to Duncan Shinn

Well, there we have it. It's normal.


We either had a.) page tearing, b.) frame stuttering, or c.) what we got. I'm happy with what we got. I don't see it in games and I don't read while scrolling, so who cares.


Somewhere there are Apple engineers who had to balance it all: frame rates versus vsync. I think they did a good job of dealing with what they were given. Now, if we could just get the iOS programmers up to the same level.

Mar 18, 2012 3:08 PM in response to Tony Lau

Correction to my own post ... I confirm that it can happen on the iPad 2 also. However, it happens in fewer situations, and when it happens it is less obvious ... Blurriness during fast scrolling seems to have masked it to a degree also, making it even less visible. I cannot recall if there is blurriness during fast scrolling on the iPad 3.

"Wobbly" page when scrolling in safari with iPad 3

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