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db2431

macrumors regular
Sep 13, 2007
173
1
Have it on mine too, it's very distracting for me and noticeable on dark scenes, and even happens when hard coded yellow subtitles appear on dark scenes, very strange.
 

Max(IT)

Suspended
Dec 8, 2009
8,551
1,662
Italy
The second issue is related to the first issue. If you have the second issue, you 100% have the first (whether you see it or not).

Dude my eyes are working perfectly (my job requires two accurate checks per year) :)

If I say: mine isn't flickering in the dark, I mean IT DOESN'T FLICKER.
 

WilliamG

macrumors G4
Original poster
Mar 29, 2008
10,008
3,894
Seattle
Dude my eyes are working perfectly (my job requires two accurate checks per year) :)

If I say: mine isn't flickering in the dark, I mean IT DOESN'T FLICKER.

And I'm telling you when the gamma/brightness is changing, you're just not seeing it. The only reason you see the home screen looking wonky is because the gamma/brightness has changed IN the movie and then you exit out and the home screen needs time to adjust itself back. So, as I said, you're just not seeing it. :)

Consider yourself lucky!
 

matttye

macrumors 601
Mar 25, 2009
4,957
32
Lincoln, England
How many would be acceptable to you for me to sample? 100? Well, 100 out of more than a million isn't really a good sample, either.

All I have is what I have. And yes, I still believe this affects all iPad 4 devices. But I'd be happy to be proven wrong. :)

It's your job to prove that it affects all iPad 4 devices; not anyone else's job to prove it doesn't.

Otherwise people could just make ridiculous claims like "my iPad 4 has wings, prove me wrong!!"
 

Max(IT)

Suspended
Dec 8, 2009
8,551
1,662
Italy
And I'm telling you when the gamma/brightness is changing, you're just not seeing it. The only reason you see the home screen looking wonky is because the gamma/brightness has changed IN the movie and then you exit out and the home screen needs time to adjust itself back. So, as I said, you're just not seeing it. :)

Consider yourself lucky!
The gamma/brightness IS changed during video playing, for sure.
What I'm saying is that IS NOT CONTINUOUSLY CHANGING DURING VIDEO PLAYING, at least on mine.
 

AppleMacFinder

macrumors 6502a
Dec 7, 2009
796
152
So I've tested this and repeated it on two different iPad 4s from two different Apple Stores.

Here is the issue:

I use Plex and Air Video to stream video from my home server. Nothing too strange about that. I also watch trailers in Safari. Nothing too strange about that, either.

However, I've noticed that during videos where there are dark scenes, the iPad 4 backlight is constantly "pumping" itself up, and then dimming back down. It's unbelievably distracting. Even stranger, if the backlight dims itself down and at that point you close the app/Safari, the entire home screen looks completely over-saturated until it, too, gradually brings its backlight level back up.

I know I'm probably not doing a great describing this. This also happens when viewing videos in Safari.

Test for yourself!

I have noticed completely the same problem with mine. Returned it immediately.
Tried to exchange it first, but I tested three of them, and all were "defective" - so, I took money instead.
Guess, this issue is pretty widespread. The rule "Never buy the 1st gen" seems correct.

Maybe, the problem is somehow related with "people eyes refresh rate" :D
Seriously, our eyes are not the same. Maybe, that is why some people see the problem, while some people not.
 
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AppleMacFinder

macrumors 6502a
Dec 7, 2009
796
152
1st gen??? What is 1st gen about the ipad 4? The display? the innards?
He meant... uh... never buy the first generation of the iPad 4. :D He'll have to skip the first generation of iPad 5, too, sadly. :p
The thing that makes it 1st gen is LG Retina Display - earlier, it was Samsung.
You probably know, there are IR problems in MBP Retina with LG Retina Display.
Apple's switch from Samsung to LG is definitely not a switch for better quality:
as you see, Samsung Displays are much better than LG. That is just politics. :(
 

prism

macrumors 65816
Dec 6, 2006
1,066
393
The thing that makes it 1st gen is LG Retina Display - earlier, it was Samsung.
You probably know, there are IR problems in MBP Retina with LG Retina Display.
Apple's switch from Samsung to LG is definitely not a switch for better quality:
as you see, Samsung Displays are much better than LG. That is just politics. :(

So you are assuming two things:
1. This is the first time that LG is producing retina displays for the iPad
2. iPad 3 was sourced 100% from Samsung
Proof?
 

Speedy Gonzalez

macrumors regular
Jun 12, 2012
153
10
Alligator Bayou
This is not a hardware issue my first iPad4 had the issue and the screen was all yellow I went to exchange it for a large capacity iPad and this one has the same issue but the screen is perfectly white that means there is more than one screen brand on the iPad maybe sharp maybe LG or they can still be shipping samsung screen for all I know

stop returning iPads to apple this is only a software issue
 

jmgregory1

macrumors 68040
So this one particular video is causing a particular issue. Not that it's un-important, but I'm just not sure how many times I'd want to watch the same trailer. I assume that the issue goes away at some point? I bet there are all sorts of problems you could find if you tried all sorts of things looking for problems.

If you, on the other hand, happen to have problems like this occur every day at points where it was effecting your work (school or professional), then I'd say it's worth noting and expecting a fix from Apple. If it's not, then just move on.
 

robertosh

macrumors 65816
Mar 2, 2011
1,142
967
Switzerland
yes, i confirm that i see the red spot too :)

photo-49.png
 

kodeman53

macrumors 65816
May 4, 2012
1,091
1
If you, on the other hand, happen to have problems like this occur every day at points where it was effecting your work (school or professional), then I'd say it's worth noting and expecting a fix from Apple. If it's not, then just move on.
'Just move on?' :eek:

There are far too many people on MR whose lives and self worth consist primarily of spending hours looking for esoteric 'defects' with Apple products then starting threads about their discoveries. Asking them to 'just move on' is like asking them to stop breathing.
 

WilliamG

macrumors G4
Original poster
Mar 29, 2008
10,008
3,894
Seattle
So this one particular video is causing a particular issue. Not that it's un-important, but I'm just not sure how many times I'd want to watch the same trailer. I assume that the issue goes away at some point? I bet there are all sorts of problems you could find if you tried all sorts of things looking for problems.

If you, on the other hand, happen to have problems like this occur every day at points where it was effecting your work (school or professional), then I'd say it's worth noting and expecting a fix from Apple. If it's not, then just move on.

'Just move on?' :eek:

There are far too many people on MR whose lives and self worth consist primarily of spending hours looking for esoteric 'defects' with Apple products then starting threads about their discoveries. Asking them to 'just move on' is like asking them to stop breathing.

There are also far too many people who don't bother to read threads/posts clearly, and then berate some of us for whatever it is they believe we're being "crazed" or "obsessive" about. :rolleyes:
 

AzN1337c0d3r

macrumors 6502
Sep 13, 2010
448
2
This "effect" will clearly be a problem with videos that have many dark to bright or bright to dark transitions.

Just because your use case doesn't experience this effect doesn't mean that Apple should just ignore everyone who does experience this issue.
 

jmgregory1

macrumors 68040
I'm all for posting what has been noticed by you or anyone on here - good or bad. I understand you want your product to be perfect, but once you let Apple know what you were noticing, I'm not sure what else you can do.

And I'm just not one to push the idea of telling people to do a certain set of things in order to "see the problem". It's similar to those doing the "light bleed" test - where you only notice the "problem" under a certain circumstance that may never naturally occur.
 

AppleMacFinder

macrumors 6502a
Dec 7, 2009
796
152
On step 5 of the teardown they state "Apple often relies on multiple suppliers for a single component, meaning there are quite likely other LCD manufacturers lurking inside other iPad 4s"

I haven't insisted on that all 100% are manufactured by LG now.
Instead, I meant the majority of displays. Because of this major shift to LG (a political move in my opinion),
a lot of Apple products have imperfect Retina displays. Really, LG Retina displays taste like they are 1st gen.
Thus, the Apple products which contain them are sort of 1st gen as well.
 

StanJefferson

macrumors newbie
Nov 15, 2012
6
0
So if it doesn't affect work or school you are not allowed to take issue with an apple product? What if the wifi runs at a snails pace, are we allowed to complain then? How about if all the colours on the screen become inverted for no reason? I like how I'm being told wether something is an issue or not by people who say theirs isn't doing it. How about if you drop yours on the floor and crack the screen, do remember to get in touch with me so I can tell you it's not an issue and to stop moaning about it because mines fine.

----------

The fact that it only does it on some video players (the actual video doesn't matter to me, it happens to be noticeable on almost all videos and I noticed it way before finding this thread, that's why I'm here), means it must be a software problem. It may only be affecting certain devices because it may only affect certain display manufacturers and those with no problem may just have a screen that's not affected. In my opinion (and I may be wrong but whatever, at least I'm trying to do something constructive here), it could be something to do with the display driver because when you screenshot for example when exiting the video and your display is washed out, the screenshot is fine so whatever is being output by the o/s is correct and the display settings are messing it up.

----------

'Just move on?' :eek:

There are far too many people on MR whose lives and self worth consist primarily of spending hours looking for esoteric 'defects' with Apple products then starting threads about their discoveries. Asking them to 'just move on' is like asking them to stop breathing.

Yes, that's all I do I'm afraid, hang around here looking for things to moan about. Oh, wait a minute, I've only just signed up because of this one problem and have never had cause to complain about an apple product before? Well, we can probably just ignore that, best not let facts get in the way of criticising people who complain about a problem they've obviously just made up! I mean, if you personally don't have this issue then it can't possibly exist can it!


Also, for those people who are saying its a perception issue rather than device issue, how do you explain the fact that my other ipad which is sitting next to it doesn't do it and when I asked my mate to 'spot the difference' if you will he instantly noticed what was happening on my ipad 4 but not happening on my ipad 3, using the same video at the same time in the same app.

I believe people when they say that they don't have this issue with their device, I just wish they could extend the same courtesy to me when I say I do.
 
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dohspc

macrumors 6502
Jun 7, 2008
449
773
Plano, TX
I noticed this the other day on my 4th gen as well when exiting back to the home screen. Everything was washed out but returned to normal quickly. Hopefully a software fix will resolve.
 

abeotechnologie

macrumors newbie
Nov 21, 2012
4
1
London
Err..

is this not because you are hovering over the sensor, thus changing the amount of ambient light. The iPad seems to try and be doing it's job and with the light changing it's just trying to match accordingly?

Or am I missing something?
 

StanJefferson

macrumors newbie
Nov 15, 2012
6
0
is this not because you are hovering over the sensor, thus changing the amount of ambient light. The iPad seems to try and be doing it's job and with the light changing it's just trying to match accordingly?

Or am I missing something?

Yes, the part where more than on person said that turning off the ambient light sensor doesn't affect this issue.
 
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