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Late 2013 27" iMac, yellow screen issues :(

F

forceroyale

macrumors newbie
Original poster
Oct 9, 2013
14
0
Just wondered if anyone else has had any problems with the new iMacs having the yellow screen problem?

I've just had a replacement 27" delivered which has the same problem as the first - the lower half of the screen has a yellowish tinge which is extremely noticeable. Apple happily replaced the first one, I'm not looking forward to returning another one.

Is it worth trying for a third or should I just get a refund and see what happens with the Macbooks at the end of the month?
 
forceroyale said:
Just wondered if anyone else has had any problems with the new iMacs having the yellow screen problem?

I've just had a replacement 27" delivered which has the same problem as the first - the lower half of the screen has a yellowish tinge which is extremely noticeable. Apple happily replaced the first one, I'm not looking forward to returning another one.

Is it worth trying for a third or should I just get a refund and see what happens with the Macbooks at the end of the month?
Click to expand...

I'd try one more time.

3rd time lucky as they say :)
 
gCloud said:
I'd try one more time.

3rd time lucky as they say :)
Click to expand...

This belongs to the well-known 27'' iMac LG monitor list of problems....nothing new...

Answer to this problem? better Quality Control.

I avoid buying 27'' iMac because of these issues...even if you have got a three-year warranty plan, replacing iMac till you get a good one is not a "happy game"!
 
ioannis2005gr said:
This belongs to the well-known 27'' iMac LG monitor list of problems....nothing new...

Answer to this problem? better Quality Control.

I avoid buying 27'' iMac because of these issues...even if you have got a three-year warranty plan, replacing iMac till you get a good one is not a "happy game"!
Click to expand...

I have last years 27" no yellowing no bleed first time lucky there. I must admit that in the last few years buying apple products has been a lottery, you count yourself luck when you get a good one.
 
gCloud said:
I have last years 27" no yellowing no bleed first time lucky there. I must admit that in the last few years buying apple products has been a lottery, you count yourself luck when you get a good one.
Click to expand...


Your statement is a proof of evidence!

Several iMac customers believe: "there is an acceptable level of risk when you buy an 27'' iMac"...That means, there is a "low risk level" to buy an 27'' iMac with LG monitor...

Do you enjoy to replace "under warranty" iMacs till you get a good one?

I am wondering....


Read this link:

https://forums.macrumors.com/threads/1509571/


there are many others...
 
forceroyale said:
That's 3/3 with yellow screens. I'm done.
Click to expand...

Ok, something is wrong here. I cannot believe you would have 3 out of 3 iMacs with yellow screen. Could there be another reason why you're seeing a yellow screen? Maybe external lighting or something?

I looked at the screen I have and the shade changes slightly depending on the viewing angle. I wouldn't call it yellow though... more like, off white. I think it's pretty normal. Could you post a screen shot?
 
Just returned my BTO and am awaiting a replacement. The bottom 1/3 had a yellow tint, especially in the bottom left corner. I could calibrate to correct a screen that is uniformly off-white, but the change in tint in the screen was driving me nuts and was clearly evident in real use with anything having a white background.
 
bacan1 said:
Just returned my BTO and am awaiting a replacement. The bottom 1/3 had a yellow tint, especially in the bottom left corner. I could calibrate to correct a screen that is uniformly off-white, but the change in tint in the screen was driving me nuts and was clearly evident in real use with anything having a white background.
Click to expand...

I wonder if the OP entire screen or just part of it was yellow? Because as you say you can calibrate it to help but if only part of it is off, something major is wrong.
 
So far my 27" BTO (3.5GHz i7, 32GB RAM, 512GB SSD and 4GB GTX780), no screen issues so far. I might be one of the luckier ones. Still, it was assembled in China (because I'm based in Malaysia).
 
My 2009 27 had slightly off colors on the sides when looked at behind a bright white background, but never got worse and only could be noticed against bright whites.

I just figured it was a part of the screen.

Just ordered a new iMac. Hope all is good!
 
forceroyale said:
That's 3/3 with yellow screens. I'm done.
Click to expand...

Oh man. I know I've stated with the notebooks specifically that some of the newer ones are warmer than the older models, but that shouldn't be the case with imacs, especially not every damn refresh. The uniformity issues are worse, and I'm not sure why they haven't devised some workaround by this point. Someone on here mentioned the issue of adhesives setting. If that is the case, it should be handled at the factory. Imacs are one area where I'm not sure what to suggest to people.
 
yjchua95 said:
So far my 27" BTO (3.5GHz i7, 32GB RAM, 512GB SSD and 4GB GTX780), no screen issues so far. I might be one of the luckier ones. Still, it was assembled in China (because I'm based in Malaysia).
Click to expand...

Interesting. It would be good to know if the point of assembly shows any correlation with the problem. It would rule out manufacturing process as the source of the problem. I'm willing to bet it's the panel itself, not the assembly.

I cannot believe this is actually happening and I've already obsessively checked every inch of the screen I have. I'm one of the lucky ones, too. This is a real bummer and I'm sorry for all who are having this problem.

Is there a way to tell which screen manufacturer build your display?
 
MikeChicago said:
Interesting. It would be good to know if the point of assembly shows any correlation with the problem. It would rule out manufacturing process as the source of the problem. I'm willing to bet it's the panel itself, not the assembly.

I cannot believe this is actually happening and I've already obsessively checked every inch of the screen I have. I'm one of the lucky ones, too. This is a real bummer and I'm sorry for all who are having this problem.

Is there a way to tell which screen manufacturer build your display?
Click to expand...

Through terminal, yes.
Command:
ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///" | xxd -p -r | strings -6
 
MikeChicago said:
Interesting. It would be good to know if the point of assembly shows any correlation with the problem. It would rule out manufacturing process as the source of the problem. I'm willing to bet it's the panel itself, not the assembly.

I cannot believe this is actually happening and I've already obsessively checked every inch of the screen I have. I'm one of the lucky ones, too. This is a real bummer and I'm sorry for all who are having this problem.

Is there a way to tell which screen manufacturer build your display?
Click to expand...

There are many other threads about these issues!
27'' iMac (2012-2013 models) seems to suffer from monitor problems such as IR, ghosting, yellowish, light bleeding etc....this monitor is LG IPS. IPS technology isn't perfect but some customers with older iMac monitors noted that SAMSUNG IPS monitors are more reliable than those manufactured by LG. Besides, as written in another thread, many of these monitor problems occur due to poor quality control in China. APPLE should be more careful and inspect their facilities in China to check if they meet the higher possible standards. I don't like to get a defective product and then, to start replacing it multiple times till I find a "good" one....poor quality process is not a "funny game" for APPLE customers!
 
ioannis2005gr said:
There are many other threads about these issues!
27'' iMac (2012-2013 models) seems to suffer from monitor problems such as IR, ghosting, yellowish, light bleeding etc....this monitor is LG IPS. IPS technology isn't perfect but some customers with older iMac monitors noted that SAMSUNG IPS monitors are more reliable than those manufactured by LG. Besides, as written in another thread, many of these monitor problems occur due to poor quality control in China. APPLE should be more careful and inspect their facilities in China to check if they meet the higher possible standards. I don't like to get a defective product and then, to start replacing it multiple times till I find a "good" one....poor quality process is not a "funny game" for APPLE customers!
Click to expand...

Yeah, I've been reading those comments now. I had no idea the issue was so prevalent. It really seems insane that Apple would allow this problem to continue!

Nevermind, yjchua95 was very helpful in identifying a way to check the manufacturer! Thank you!
 
Ok, something is wrong here. I cannot believe you would have 3 out of 3 iMacs with yellow screen. Could there be another reason why you're seeing a yellow screen? Maybe external lighting or something?
Click to expand...

So that's what I thought, this time I've tried it in three rooms, I took photos of the screen, blurred them in photoshop and upped the levels and it's warmer (https://www.dropbox.com/s/1d92ph7n8009z26/IMG_3040.JPG), I also used an iOS colour meter app and it was consistently about ten points lower on blue levels at the bottom than it was at the top (https://www.dropbox.com/s/22yv8bz9ddokr9a/colormeter.jpg).


What topped it was my wife walked in the door and spotted it immediately, before I'd told her.

I spoke with apple support and they are putting it down to a run of bad luck, the guy I spoke to said he's heard or it happening twice but never three times, they're sending out iMac #4 today, as this is still the best machine for my needs, if it happens a fourth time I'm going to wait until next year, maybe buy an SSD for my MBP to tide me over.
 
My second replacement now has the exact same issue -- yellower on the bottom third of the screen. I just can't deal with a screen that isn't at all uniform in colour. It just looks weird and it will make photo editing really difficult.

Not sure where I go from here. I might just wait for a bit for the Mac Mini to be updated and then get a non-Apple display to go with it, or settle for a 21.5" iMac. I'm leaning towards the first option because I have just lost confidence in Apple's screens.
 
This is so frightening. I am waiting for my iMac to arrive and I've had enough troubles saving for it, ordering it that having to replace it would be a disaster!

Paying so much for a machine that has faulty screens....
 
Please tell me this is not true ? I am waiting for my new iMac 27" to replace my old late 2009 one. I already had nightmares with the screen and got it replaced 3 times; first time yellow tint, 2nd time gray smudges, 3rd time also gray smudges and shadows after 4 months of the last replacement and it all came back.

I decided to give the new iMac a try and looking at the new design, I thought they re-engineered it due the tons of screen replacement they had to deal with previously! Check Apple forums, every thread is like 150+ page.

Now seriously, if this happens with the new iMacs I'm gonna return it back for a full refund and this is going to be my last Apple device. I already spent $3780 on this machine so far and I'm not printing money.
 
You guys need to understand the laws of averages and the paranoia coupled with irrational OCD of Macrumors users. Don't be scared. Wait for your iMac and enjoy using it. You have around a 95% chance of not having issues. 70% of statistics are made up on the spot and 80% of all people know that. More seriously, being afraid of what you read on forums like these and taking the small sample set as an indication of anything is not going to get you anywhere in life.
 
I have the same problem as forceroyale and even used the same colour meter to get similar results. My guess this is quite common, just that some notice it more than others but I'll live with it as it's not that bad and I can't be bothered with the hassle of replacing it and probably getting one with the same or other issues. Nothing is perfect especially with these screens. My 30" ACD had even worse colour variations.
 
So iMac #4 arrived and it has the same problem, out of the box the screen had been calibrated a lot warmer than the others so I thought maybe that was making it worse, but alas now it's calibrated it's quite obvious.

Interestingly this screen has a problem I haven't seen before, as well as being warmer the backlight is a lot brighter at the top than the bottom - the whites are dull in comparison, not just yellower.

So is this a run of bad luck? Probably not, I'm beginning to believe the new iMacs are just like this, I'm a designer so I tend to notice it as it would effect the ability to do my job, whereas others would either not notice or choose to overlook it.

I'm open to suggestions as to what to do with my money now...

Here's a photo in case you don't believe me, those two safari windows are showing the same website footer
 

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