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Elfanger

macrumors newbie
Nov 17, 2012
7
0
Thanks.

I will return my iPad 4 and get a mini then.

I just noticed this issue whilst watching some anime on my iPad 4.
 

Candykwan

macrumors newbie
Nov 3, 2012
23
0
I am dutch and usually watch movies with dutch subtitles on it. But this new batman film unfortunatelly comes without subs so i watch it without subs.
I can understand that when you have bright subs going on and off in your screen, it could affect the screen brightness or gamma or whatever. But, forinstance, in this batman movie there is a scene in which batman is dancing and talking with a girl. During the dancing the brightness of gamma (or whatever) is flickering on and off. One second black is really nice black, the other second all the blacks in the screen is lighted. It flickers on and off and there is not anything in the scene that is making it flickering. It looks like the brightness or gamma is triggering by something else then what is happening in what you see in the movie. It almost looks like it is random.

The over saturated home screen what you get to see is something you see for 2-3 seconds directly after the app is closed. It has nothing to do about the filmingdevice he is using to film the homescreen. I see it too, with my own eyes.

is it the auto brightness feature? I've had that happening to me so I turned the auto brightness off and never had that problem again...
 

JP2012

macrumors newbie
Mar 22, 2012
11
0
No, te auto brightness is one of the first things i turn off when i buy a new idevice.
 

tazdevl

macrumors regular
Jul 6, 2010
231
145
Make sure the genius' report it to apple. I think this is a software bug. May want to also provide feedback directly to apple here:

http://www.apple.com/feedback/
 

i4t4fun

macrumors newbie
Nov 17, 2012
8
0
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!

e.g. if you go to this website on your iPad 4 to view The Dark Knight Rises trailer...

http://trailers.apple.com/trailers/wb/thedarkknightrises/

Tap on Trailer 4:

At 13 seconds into the trailer...

Here is a screenshot of where it happens most noticeably.

photo-49.png


Test Method:

The EASIEST way for you guys/girls to test this to simply PAUSE the video at 13 seconds, (make sure the video is FULL SCREEN and that the controls are HIDDEN) and simply watch your backlight change after 3-5 seconds. When the backlight dumps down, you can hit the Home button and now look at your messed up icons! After a few seconds, your Home screen icons will go back to normal (the FaceTime icon especially looks terrible until then). Make sure the video is full-screen!

I'm not sure what's going on here, but it literally makes it impossible to watch movies with dark scenes on the new iPad 4. The backlight switching brightness is incredibly distracting, and an issue simply not present on the iPad 3.

I'm now heading back to the Apple Store with this second iPad. Is this something Apple can fix? I'm not sure. There's some very aggressive contrast management going on here it appears. But it doesn't work.

Call me a sad panda.

*edit*

Easiest method for testing is max backlight in a dimly-lit room. It's easy to see the backlight changing this way.

Here is an EXPOSURE-LOCKED video from my iPhone 5 showing the contrast/backlight pumping. This happens ALL the time when watching a video with dark scenes.

CLICK THE BELOW IMAGE TO WATCH THE VIDEO:

[url=http://i10.photobucket.com/albums/a127/wgrose/th_581676D4-C812-4C65-9A5A-8557765FF204-6914-000003767E664414.jpg]Image[/URL]

And here's the byproduct of closing a video when the screen is black. Again the exposure is LOCKED. You can see how the contrast is all blown out until it calms back down. This below video is NOT a major complaint, but is happening due to the issue above.

[url=http://i10.photobucket.com/albums/a127/wgrose/th_FF073B0B-D8CC-40C3-9A39-4D9E86DF20B6-6914-00000376AC4C5718.jpg]Image[/URL]

Yup, currently experiencing the same thing. I'm on my 3rd iPad and not only am i experiencing this, but I've also got dust particles as well as backlight bleeding. These are especially visible when at about 40%-50% brightness. Has anyone recently exchanged their iPad and received a perfect display with no flaws yet? I hope manufacturing process has improved, I'm going to exchange my iPad yet again...=(
 

WilliamG

macrumors G4
Original poster
Mar 29, 2008
10,008
3,894
Seattle
Yup, currently experiencing the same thing. I'm on my 3rd iPad and not only am i experiencing this, but I've also got dust particles as well as backlight bleeding. These are especially visible when at about 40%-50% brightness. Has anyone recently exchanged their iPad and received a perfect display with no flaws yet? I hope manufacturing process has improved, I'm going to exchange my iPad yet again...=(

Dust under the screen is unfortunate. I've seen that on numerous occasions with iPads (and older iPhones like the 3G/3GS which didn't have fused displays). I'd say if you don't notice the dust under normal usage, don't worry about it. If you do, exchange it.

You can exchange your iPad for the dust issue, but the replacement will still have this video-playback issue until Apple (hopefully) releases a software fix for it.
 

i4t4fun

macrumors newbie
Nov 17, 2012
8
0
Dust under the screen is unfortunate. I've seen that on numerous occasions with iPads (and older iPhones like the 3G/3GS which didn't have fused displays). I'd say if you don't notice the dust under normal usage, don't worry about it. If you do, exchange it.

You can exchange your iPad for the dust issue, but the replacement will still have this video-playback issue until Apple (hopefully) releases a software fix for it.

Great thanks for your advice, but what would you say about the backlight bleeding. It's noticeable in a dark room at like medium brightness and with dark or black backgrounds. It appears along the top and bottom of the iPad screen.
 

WilliamG

macrumors G4
Original poster
Mar 29, 2008
10,008
3,894
Seattle
Great thanks for your advice, but what would you say about the backlight bleeding. It's noticeable in a dark room at like medium brightness and with dark or black backgrounds. It appears along the top and bottom of the iPad screen.

A small amount of backlight bleed is likely acceptable. Apple has certainly changed their manufacturing process since iPad 3. I'd seen numerous really bad instances of backlight bleed along the edges, whereas this isn't as big of a deal with iPad 4 (I've seen quite a few). I'm sure it's still possible to have iPad 4s with backlight bleed, so I'd say if it's really obvious you definitely have another reason to exchange yours. The one I currently have in my possession has no backlight bleed at all at reasonable brightness (medium) in a dark room.
 

Stosh68

macrumors newbie
Sep 19, 2012
12
0
No, the problem exists and you don't see it. There's a difference. This affects ALL iPad 4 devices.

You don't know what he sees on his Ipad, so stop acting like you do. Maybe there is a problem, maybe there isn't. You certainly have not looked at every Ipad 4 produced. You don't know if it's hardware or software "issue", you're not in a position to say. You have no idea how many different permutations of hardware there are in Ipad 4's, considering all the different suppliers of various internal components that may or may not be the cause of the "issue" that some people see.

From your very first post your tone was "I KNOW EVERYTHING AND IF YOU DISAGREE WITH ME YOU ARE WRONG AND IF YOU DON'T SEE WHAT I SEE YOU ARE STUPID." From my perspective, all you are doing now is trying to crown yourself as some sort of internet hero and blow up the issue in the hopes you will garner e-fame for some monumental discovery that frankly effects some and bothers few.
 

WilliamG

macrumors G4
Original poster
Mar 29, 2008
10,008
3,894
Seattle
You don't know what he sees on his Ipad, so stop acting like you do. Maybe there is a problem, maybe there isn't. You certainly have not looked at every Ipad 4 produced. You don't know if it's hardware or software "issue", you're not in a position to say. You have no idea how many different permutations of hardware there are in Ipad 4's, considering all the different suppliers of various internal components that may or may not be the cause of the "issue" that some people see.

From your very first post your tone was "I KNOW EVERYTHING AND IF YOU DISAGREE WITH ME YOU ARE WRONG AND IF YOU DON'T SEE WHAT I SEE YOU ARE STUPID." From my perspective, all you are doing now is trying to crown yourself as some sort of internet hero and blow up the issue in the hopes you will garner e-fame for some monumental discovery that frankly effects some and bothers few.

I have no intention of become a "hero" (a hero of what, exactly? For seeing what a lot of other people see?)

There is a problem. How do I know this? Because Apple have been calling me every other day of this week to inform me they're working on it! Unless, of course, the Apple engineers don't know anything about their product. :rolleyes:

I am not one to disagree this intently with people over an opinion. I am, however, one to disagree over simple facts, and this is one of them, and here it is again:

"All iPad 4 devices suffer from this video issue (should I call it "Videogate," hah!?). Whether the individual sees it or not has no bearing on the FACT that ALL iPad 4 devices suffer from this issue."

I honestly don't mind if you disagree with the facts, so feel free to continue to disagree.

:)

FYI, I'm pretty sure this can be fixed in software given that AVPlayer HD doesn't exhibit this problem, and others have reported that the Netflix app has no problem, either. Currently, I have tested Plex, AirVideo, Safari, Apple's Videos App and have confirmed those four to experience the issue.

As soon as I hear some resolution from the engineers at Apple, I'll be sure to post here.
 

Awakener

macrumors 6502
Mar 28, 2011
345
0
If you followed my instructions exactly, you'd be able to replicate it, as I absolutely believe this affects 100% of iPad 4 devices.

Tried multiple iPads and cannot replicate this. Maybe it affects 100% of people sensitive to it? :confused:
 

jonnyb098

macrumors 601
Nov 16, 2010
4,250
6,503
Michigan
I too have noticed the low contrast during video playback on any app that uses apples video decoding. Netflix is fine. I don't think this is a bug It seems like some sort of dynamic contrast or something. However when watching podcasts for example this is obviously not optimal since it completely washes out details in people's faces. Not sure why apple decided to start using this technique.

If this is a bug it's definitely an odd one. Any hardcore video professionals have a take on this?
 

Gritzo

macrumors newbie
Nov 7, 2012
14
0
You don't know what he sees on his Ipad, so stop acting like you do. Maybe there is a problem, maybe there isn't. You certainly have not looked at every Ipad 4 produced.

I reproduced this on every ipad4 display unit I have used in all stores (4bestbuys,1 apple store with 6 units on display)
 
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