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Do you have a yellow tint on you iMac 24"?

  • Yes I have it.

    Votes: 49 20.8%
  • Yes I still have it after one or more replacements.

    Votes: 11 4.7%
  • I had hit, but not after I got a replacement.

    Votes: 1 0.4%
  • No I don't have this issue.

    Votes: 175 74.2%

  • Total voters
    236
Interesting. I just did the same thing but my screen looks exactly the same.
Might it be a placebo effect on your part perhaps? Would you mind taking a photo?

Here's there the old mac (country desktop background, 4778) and the new iMac (fish background, 4790). Let me know what you think. It's not "perfect" but much closer. Less yellow tint on the right side. The pictures don't do enough, it's much more apparent in person.
 

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Your poll, although young and small in numbers, is confirming what we already knew: (1) some see a problem they cannot accept; (2) some see the problem and it does not interfere with what they want to do with their computer, so no big deal; (3) some do not see any problem and wonder why we're complaining. I've given up on the 24" display after three tries. Apple Support accepted my dissatisfaction and worked to satisfy me. I believe they would have continued to send me replacement after replacement. We who are dissatisfied, cannot go and inspect every 24" display to prove we are correct and that there is a wide-spread problem. Neither can we visit each satisfied user and demonstrate the problem to them until they see it too. We are beginning to say "I am right and you (or your eyes) are wrong". Apple will not recall these displays, just look at the poll results. May I suggest each of us take advantage of Apple's efforts to satisfy us. They will replace a unit that is unsatisfactory; they will try to repair it; they will refund your money; or, they will allow you to choose an alternative. I too am dissappointed, but there will be new Macs coming, and there are alternatives to address this problem at the other end of your telephone.
 
When I first turned on my iMac AL 24" I noticed the screen was a lot yellower (if that's a word) than I was used to. It definitely didn't look like any Mac I'd used before. I did some searching and noticed people were saying to use the Adobe RGB (1998) profile. That seemed a bit weird to me so I jumped on Apple.com and found a post about gamma correction that mentioned using 2.2 gamma and the D65 color point. So I tried this and now my iMac looks the same as every other Mac I've used before.
 
Let me know what you think. It's not "perfect" but much closer. Less yellow tint on the right side. The pictures don't do enough, it's much more apparent in person.

Yeah it looks better. Barely noticeable in that picture. How does it look with a solid background?

I cannot seem to make it better in any way on my computer. I've really tried everything now.

I regret not calling Apple today. But I hope it's not too late to call them about it on monday (got it wednesday).
 
When I first turned on my iMac AL 24" I noticed the screen was a lot yellower (if that's a word) than I was used to. It definitely didn't look like any Mac I'd used before. I did some searching and noticed people were saying to use the Adobe RGB (1998) profile. That seemed a bit weird to me so I jumped on Apple.com and found a post about gamma correction that mentioned using 2.2 gamma and the D65 color point. So I tried this and now my iMac looks the same as every other Mac I've used before.

The problem we are having is that it's a lot more yellow towards the middle of the screen. If the yellow tint had been consistent across the whole screen it wouldn't be such a problem. But if I calibrate it so that the middle is white, then the rest of the screen becomes even bluer.
The color shifts are really annoying when working with solid colors. Or even when web browsing.
 
Your poll, although young and small in numbers, is confirming what we already knew: (1) some see a problem they cannot accept; (2) some see the problem and it does not interfere with what they want to do with their computer, so no big deal; (3) some do not see any problem and wonder why we're complaining.

So you are basically saying that you think the 70% does have the problem but doesn't see it?
It would seem odd to me that so many cannot see it. Because it's right there all the time unless I watch a movie or something.

It seems impossible to get a clear answer. If this is something all units have or if it's "just" 30-40% of them. It's interesting that one person has reported that he has replaced it and gotten a good screen.

I don't have an Apple store nearby so I haven't been able to check out any others than the two I've had.
 
These are the exact same defects that exist on the Apple 23" Cinema Displays since they were introduced several years ago: Fading colors and yellowing along the edges with uneven backlighting.

Don't plan on convincing Apple to fix it, they've ignored all the 23" ACD owners for years without even ackowledging the defects, let alone fixing them. Unfortunately, it's always hit-or-miss when it comes to Apple displays. Consider yourself very lucky if you get one that actually works as advertised, they are rare.
 
These are the exact same defects that exist on the Apple 23" Cinema Displays since they were introduced several years ago: Fading colors and yellowing along the edges with uneven backlighting.

I wonder if they have some kind of long term contract with LG-Philips? Why else would they continue buying such crappy panels from them?

"We can't ship junk. That's not who we are." - Steve Jobs

Now the rest of this computer is excellent in terms of quality. I'm really impressed by it. So how can they just not care about one of the most important parts of it? The thing you rest your eyes on all the time.
 
It seems to me that this color being taken from two separate photos could result in the effect shown. You need to take the samples from the same photo.

Ok, I took ONE photo this time, with three finder windows in different parts of the screen, one on the extreme left, one in the middle and one at the bottom. And then I put them side by side. So this has nothing to do with being separate photos.

tricolore.png
 
Looking at the 3 photos above all I can say is OUCH!

My iMac while it suffered the gamma correction defaults being borked definitely doesn't do that.

I really hope you can get this fixed.
 
Ok, I took ONE photo this time, with three finder windows in different parts of the screen, one on the extreme left, one in the middle and one at the bottom. And then I put them side by side. So this has nothing to do with being separate photos.

tricolore.png

Yeh, thats pretty dramatic my new 24" iMac does not look anything like that.
 
I really hope you can get this fixed.

Yeah, well, I have decided that I will call Apple tomorrow and get a replacement. And I will continue getting at least 5 replacements if I don't get a good one. After that I will reconsider my options.

I really don't want to give up on the iMac since it's such a perfect computer for me. But I really cannot live with this display.
 
Yeh, thats pretty dramatic my new 24" iMac does not look anything like that.

Would you mind taking a photo of it with a solid gray background? I have yet to see a 24" iMac without this issue, seeing one would at least give me some hope.
 
Would you mind taking a photo of it with a solid gray background? I have yet to see a 24" iMac without this issue, seeing one would at least give me some hope.

There is a blue section showing up on the left I don't know if that is a reflection or what but I have never noticed it except in this picture. The photograph also exaggerates the darker spots in the corners of the screen. Also I forgot to turn the brightness back up and I have never run the hardware check or calibrated in any way.

The photo certainly looks worse then I can see in person. I will try again tonight when there isn't sunlight coming in the window from the right.
 

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The left side of my screen has a blue tint while the right side has a yellowish tint. If I flash my eyes really quick, my screen turns green!
 
There is a blue section showing up on the left I don't know if that is a reflection or what but I have never noticed it except in this picture. The photograph also exaggerates the darker spots in the corners of the screen. Also I forgot to turn the brightness back up and I have never run the hardware check or calibrated in any way.

Well I see you have the same issue :( that didn't give me much hope. But thank you for the effort.

I called Apple today and they agreed to send me another replacement, but I'm afraid the new one will look just like this one. I think it's odd that they said they never heard about the problem. Either they just deny it or the average buyer just don't notice it.

However if this is a problem on every iMac I don't think that they would agree to send me a replacement. They would probably just tell me to accept it or to get a refund.
It has to cost them a lot of money to replace these machines all the time. And I don't want to cause them any problems. I just feels that this screen is sub standard, and it's not on par with the quality I expect from Apple. And it is a real issue for those like me who work with design.
 
Well I see you have the same issue :( that didn't give me much hope. But thank you for the effort.

I called Apple today and they agreed to send me another replacement, but I'm afraid the new one will look just like this one. I think it's odd that they said they never heard about the problem. Either they just deny it or the average buyer just don't notice it.

However if this is a problem on every iMac I don't think that they would agree to send me a replacement. They would probably just tell me to accept it or to get a refund.
It has to cost them a lot of money to replace these machines all the time. And I don't want to cause them any problems. I just feels that this screen is sub standard, and it's not on par with the quality I expect from Apple. And it is a real issue for those like me who work with design.

I can certainly see the problems in the photo but I still can't see it on my screen. I work with color all the time, so I was assuming that for this reason I would be able to spot this problem as you do, but I can't. Then again I was working on a much worse monitor on the 17" G4 iMac and had no problems. I have never depended on my eye for color matching. If exact hues are expected I stick with color codes or HEX numbers.
 
After working with mine for days I can still see there is a slight brightness variation on the left side. I borrowed a light meter from work to see if it was just my eyes playing tricks on me, but the meter didn't prove that. I'm not sure what the meter was measuring in (it wasn't f-stops), but with white at full brightness the left side would get around 30, while the right side got around 25. I noticed less variations with darker colors, like black was 1-2 on the left and 2-3 on the right.

I also ran this test on my 20" cinema display and the numbers jumped between 12-13 on a grey background on the WHOLE screen. So, at this point my 5 year old 20" cinema display is much more consistent.

I do notice that my iMac display looks better when it's powered up for a little while though.

I believe this is a problem was all the 24" AL iMacs, just some people don't notice it. Apple is gracious enough to send replacement after replacement, but I feel that getting a completely uniform screen is just not possible. But this is only my guess.
 
No problem here

I'm generally pretty sensitive to things like this, and can say pretty conclusively that there's no yellow patch, colour variation or darkening on one side. I've tried with a solid background of various greys, the only thing it shows up is the slightly uneven back lighting right in the corners.

I calibrated it pretty much as soon as i got it (with the display prefs tool, nothing fancy) and have it set on full brightness.

One thing with the photos - the camera will probably pick up colour differences that aren't really there, or exaggerate ones that are but that you wouldn't even see with your eyes. If the photo shows something you're actually seeing, fine, but don't assume that it's a fault just because the photo looks wrong :)
 
I'm generally pretty sensitive to things like this, and can say pretty conclusively that there's no yellow patch, colour variation or darkening on one side. I've tried with a solid background of various greys, the only thing it shows up is the slightly uneven back lighting right in the corners.

So... do you want to trade iMacs with me? ;)

One thing with the photos - the camera will probably pick up colour differences that aren't really there, or exaggerate ones that are but that you wouldn't even see with your eyes. If the photo shows something you're actually seeing, fine, but don't assume that it's a fault just because the photo looks wrong :)

Yeah, it might be that the camera exaggerates it in some pictures. But I compared my experience with the images and in my case most of them show exactly what I'm seeing with my own eyes.
I somewhat feel like a spoiled brat for complaining about this, but I worked hard for my computer and I've waited a long time for the new model, and I can't help but to feel disappointed. I can take slight variations in colors, but this isn't slight variations to my eyes.

Would you mind taking a photo of your screen as well? Give me some hope man! :)
 
I'm generally pretty sensitive to things like this, and can say pretty conclusively that there's no yellow patch, colour variation or darkening on one side. I've tried with a solid background of various greys, the only thing it shows up is the slightly uneven back lighting right in the corners.

Ditto here. Slight dimming in the corners. No tinting anywhere on the screen. I'm actually very happy with my 24" display.
 
Yeah, well, I have decided that I will call Apple tomorrow and get a replacement. And I will continue getting at least 5 replacements if I don't get a good one. After that I will reconsider my options.

I really don't want to give up on the iMac since it's such a perfect computer for me. But I really cannot live with this display.

I hope it works out for you as my iMac doesn't at all exude those color changes as yours does.
One note, companies including Apple will not continue to give you as many replacements as it takes until you are satisfied. At a point your will be offered your money back.

I know this because I had a faulty 30" cinema display. Hundreds of pixels kept showing up after being on for 15 minutes. The Apple store exchanged it 3 times and the same issue occurred right in their store. They wouldn't open another one, they offered my money back and I took it.
 
One note, companies including Apple will not continue to give you as many replacements as it takes until you are satisfied. At a point your will be offered your money back.

No I probably won't ask Apple Store for another replacement. I think they have done a lot already.
In that case I'll probably ask for a refund and buy it someplace else. I would just have to give up on the 500GB HDD.

I will however, document the issue and send a report to them. I think that they deserve to know that many people does have problems with the screens and what the problem is.
Not sure if they will care (they don't seem to care much about the ACD issues), but it sure doesn't hurt.
No company wants to have unsatisfied costumers.
 
No I probably won't ask Apple Store for another replacement. I think they have done a lot already.
In that case I'll probably ask for a refund and buy it someplace else. I would just have to give up on the 500GB HDD.

I don't think buying "it" someplace else will get you the one you are after. I think you should buy something else like a lower end or refurb Mac Pro and any decent LCD display.
 
I don't think buying "it" someplace else will get you the one you are after. I think you should buy something else like a lower end or refurb Mac Pro and any decent LCD display.

Well, I can't believe that it would be impossible to find an iMac without this issue. Sure, one guy over at the apple discussion forum got 14 replacements before he found one that was good enough. But that just had to be bad luck.
Can't believe that Apple agreed to all those replacements though.

Everything else about the iMac is perfect for me. Actually, it's the kind of computer I've been wanting for the past 10 years. So I'd really rather not go down the Mac Pro route. It's pretty much the last resort.

Also, it's pretty much impossible to get refurbed Macs in Sweden. Apple Store has a page for them but there's never any for sale. And a low speced Mac Pro with a decent screen costs almost twice when the iMac costs. It would take a while to save up for that unless I get a contract with some rich client.

So the option for me would probably be buying a used one that I know doesn't have the issue.

But lets hope that the replacement turns out fine.
 
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