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27", 21.5" iMac Owners, test your screen for yellow tint issue here
- Thread starter tapplox
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Here is a good site to check for dead pixels and yellow tinting:
http://www.imac.squeaked.com/
Click on "test your Imac"
My week 47 I7 is fine (now 18 days). I even had my wife look at the screen for defects and she couldn't see any either. I read on another site that Apple may be replacing graphics cards although I don't know for sure if this has been confirmed. If this is a card issue I wonder if Apple will recall/replace cards on machines built prior to a specific week
?
http://www.imac.squeaked.com/
Click on "test your Imac"
My week 47 I7 is fine (now 18 days). I even had my wife look at the screen for defects and she couldn't see any either. I read on another site that Apple may be replacing graphics cards although I don't know for sure if this has been confirmed. If this is a card issue I wonder if Apple will recall/replace cards on machines built prior to a specific week
?For the first time reported here, Apple has acknowledged that the yellow tinge as an known issue.
Source thread.
Source thread.
week 49 i7 ...
Received my replacement (week 49) and used it for two days. Although it's much better then the previous week 45 machine, this one still have the yellow tinge, especially the lower right corner. I'm going to call Apple asking them to replace the machine or the screen after they fix the issue since it's really pointless to swap it out now.
Received my replacement (week 49) and used it for two days. Although it's much better then the previous week 45 machine, this one still have the yellow tinge, especially the lower right corner. I'm going to call Apple asking them to replace the machine or the screen after they fix the issue since it's really pointless to swap it out now.
Because this is a hardware problem, not a software problem. Were you to take an actual Color Temperature meter, and compare the top and bottom bars, there would be a difference, and a noticeable one. Using software will give you the same numbers because the bars are SUPPOSED to be the same color. The reason they are not is the fault of the display.
Just did the test, I was very happy I had no dead pixels Yeah! but I have the yellow tinge at the bottom......now what? should I call apple? I would hate to get a new machine and then find out I had some dead pixels.
I thought it might be something like that. So the panel is getting the correct information, just interpreting the data incorrectly. I guess the upside is that for those publishing, even though things appear tinged on the screen they are, in fact not tinged.
I supose that also means any remedy will be a hardware replacement and not a driver or software fix.....
Just did the test, I was very happy I had no dead pixels Yeah! but I have the yellow tinge at the bottom......now what? should I call apple? I would hate to get a new machine and then find out I had some dead pixels.
At the time I also have no dead pixels, if my new one has a dead one, I will ask for a new one again...
Just did the test, I was very happy I had no dead pixels Yeah! but I have the yellow tinge at the bottom......now what? should I call apple? I would hate to get a new machine and then find out I had some dead pixels.
You have the same decision I did. I thought I had to Jan. 7th to return mine but after reading apple's return policy it says "on line purchases". I bought mine in the store. So guess I can't return it for a switch as I'm one day past 14. May now call Apple tech and complain. I still worry I'll get another worse than this one. At least this one has no dead pixels.
What's interesting is that I looked at my old 24 inch iMac and noticed really bad yellow tinging in the top left corner. It was actually very severe. I had never noticed this in two years of usage, until I looked for it.
So it would seem that this type of problem has been present since at least the 24" iMac model in 2007.
So it would seem that this type of problem has been present since at least the 24" iMac model in 2007.
Im thinking the displays maybe getting to hot over time, you have a lot of heat packed into a small space. Power supply,gpu,cpu,speakers etc all right there. Funny thing is where all the heat is at the top is fine, its the bottom part for my new machine that has what I call a offwhite look.
Wow!! Thanks. I'm so disappointed in the "yellowish" screen. Just can't bring myself to box it up and go through the routine "again" with no guarantee it will be better. With laptops I'd make them open it and take a peek but haven't done that with Imac. A bit harder to do in a mobbed store.
OK. I'm back from the Apple Store. The 21.5 yellow guy is gone replaced with a new 27". I see no problem with the screen at all. No yellowish tint. Now unless heating up changes that after a few hours this one looks like a winner.
Good for you! You must be one of the few who's managed to get a 27" iMac with no yellow tint. What processor does it have? And (not to jinx), but keep your fingers crossed that the incessant flickering doesn't start!
Good for you! You must be one of the few who's managed to get a 27" iMac with no yellow tint. What processor does it have? And (not to jinx), but keep your fingers crossed that the incessant flickering doesn't start!
3.06 27" Base. No tint. Flickering? Now I should read about that too. Haven't noticed anything.
You're kidding! You haven't heard about the flickering? It's (literally) all over the web. Start here.
Here are some news links for ya...
Computer World
MacLife
MacDailyNews
Our very own MacRumors
AppleInsider
...and the list goes on and on!
