OS X :: 24" IMac Display Suddenly Changed To Max Contrast Or Tint?
Jul 9, 2010
I was plugging along on the internet when I decided to try the spoken commands for the first time. When I opened System Preferences and clicked on the microphone, at that instant my screen flickered and changed in both quality and what appears to be contrast and tint. I tried in vain to correct this by way of the controls for the Display in Sys. Prefs. but to no avail. I would like to know if I have a video problem or a memory problem.
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Jun 28, 2010
I just received my new imac 27, i7 (28-06-2010). I ran the screen test, unfortunately my screen has yellow tint issue. I have ran all updates and firmware within apple update with no luck. Going to call Apple for a replacement!
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Jan 10, 2010
I see all these complaints about i7 iMacs, does the yellow tint affect Core2Duo models? Is the tint an effect of a MB/CPU issue or a display problem?
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Jun 25, 2014
early 2009 Intel iMac 24". OS 10.6.8.Â
Working in Excel today, I was highlighting groups of cells with color when the entire screen suddenly had a pale grey-green tint. Can still see colors beneath, but everything tinted (not just the Excel window, but the entire display). White, of course, is most dramatic. The Dell monitor beside it is fine.Â
I've recalibrated color a half dozen times (have always had to do that to get the Dell and iMac screens as similar as possible). It's impossible to get white on the Mac. Rebooted several times, including hard boot, zapped the PRam, ran Permissions Repair and Disk Repair from the startup CD. Installed Temperature Monitor to see if there's a heat problem, but I could not find normal temp values anywhere on the Web, so that was something of a bust. Temps attached below in case there's an educated set of eyes out there....Â
Ran some online tests, too, for color distortion, dead pixels, that kind of thing, but nothing reveled.Â
I've been all over the Web looking for some guidelines, but most posts at apple and elsewhere seem to focus on later-model iMacs with the yellow lower screen problem when new (It's not that) or panic screens of wild colors, stripes, and the like. This is just a grey-green tint that covers the entire screen, rendering whites grey-green and colors muddy.
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May 29, 2012
There was an electrical storm last night, and it may have fried some things for me, even though everything was on a surge protector.My G5 suddenly has no video. It booted, chimed, and had a white light on the front. I could hear emails coming in, etc. But NO video. I rebooted multiple times, zapped the PRam, and what I'd get is about a half a second of video (grey screen and Apple logo) before the monitor would pop back to black. I swapped in a different monitor I had and rebooted. I then had a normal reboot, but everything on my monitor is tinted blue.I took the old monitor and tried it out hooked up to my iMac and it's definitely dead. Have you ever heard of a video card failing, and everything turns blue?
Info:PowerMac, MacOS X (10.5)
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Feb 19, 2012
My display looks like the contrats is on high, but I don't know how to change it. I've gone through the color calibrations and nothing seems to help.Â
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Jul 4, 2009
Alu 24" 2.4ghz when they first came out with aluminum, got it at the store. since august 07 My imac had a small yellow tint, i noticed, when i got it and it was not worth anyhting screaming about, i also noticed it had bleeding issues ath the bottom and sides. I wanted to return it or trade but i was convinced out of it.
Now i noticed that from left to right their is a prominent yellow tint streaking it's way across and fading around the half way point.It is irritating and sad to see this display on this mac was ok, at first but it is geting slightly worse.I have apple care, can i trade this/replace it at an applestore, or would they need to fix it?
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Sep 30, 2009
The reason I am asking is that I am using a Spyder colorimeter to calibrate my monitor and it is asking me which controls exist on the display:
-brightness
-contrast
-backlight
My thinking is that F1 and F2 control the backlight level and not the "brightness" level, if you get what I mean.
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Sep 27, 2009
So, for some reason when I have a secondary display connected to my Mac Pro, it will sometimes randomly get a yellow tint. Turning it on and off again will fix the problem, but then it'll only be a matter of time until it randomly gets a yellow tint again, usually when the display gets focus.
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May 9, 2012
I have a MacBook and the display is much different and an option that i cannot find on the settings. The display on my screen has a negative view to it. As if you were looking at a picture film. I have all the current updates on it, the hard drive is only months old. I don't know what is wrong with it, if a setting what changed that I can't find or if my computer is messing up?
Info:
MacBook
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Dec 8, 2014
Where and how I adjust contrast on a 2008 iMac? That would support the calibration of the monitor.
Info:
iMac (20-inch Early 2008), OS X Yosemite (10.10)
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Dec 16, 2009
Picked up a used mac mini from eBay to use as a HTPC. This is my first mac.
When hooked up to a TV the display has a blue tint to it. I have tried the 2 TVs in my house, both have the same result. It's so blue its not usable. When hooked up to a 20" 1440x900 reg monitor it looks fine.
Using DVI:HDMI cable & 1/8" audio
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Nov 24, 2009
HiI'm gonna purchase the 27" iMac but I'm curious about an aspect of monitors I've never considered. The iMac has a contrast ratio of 1000:1. When I look at ads for TVs, whether it's LCDs or plasmas, the contrast ratios are significantly greater. Can the contrast ratios of TVs be compared directly to computer monitors? Is for example the 1000:1 on the iMac exactly equivalent to a 1000:1 specification on a TV?
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Jan 10, 2011
I have no idea what happened but somehow the function of some of the keys on the top row on my Macbook Pro keyboard changed. For instance the dashboard key does nothing while the F12 key now shows the dashboard, F11 shows the desktop while F9 does what F3 did before etc.
I'm certain no fluids were spilt on the keys.
After I restarted and tried to change them back to the default function in the system preferences window, nothing happened.
How can I restore the defaults?
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Mar 18, 2012
All of a sudden when I open Safari, it opens to the full screen and the tool bar on top doesn't show unless i click somewhere around the google search box. Then it appears and I can click on diagonal arrows that shrink it to about a quarter of the size vertically. Then I can click out of it by clicking on the red x on the left hand corner.
Info:Mac OS X (10.7)
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Dec 6, 2014
Suddenly my Disk Utility changed to Danish and the paper/pencil/ruler icon is in it's place. How can I change my Disk Utility back to English?
Noticed this after a back-up last night. How can I change my DU back to English? I can't use it for repair permissions, partitions etc. because I don't read Danish.
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Sep 20, 2009
I have a 23" apple mac cinema display (matt version) which seems to be suffering from a slight yellowish tint on the left hand side, it also seems to go slightly brighter that side as well, apart from that the screen is fine.
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Jul 24, 2010
Hey guys! So just a few days ago, I received my iMac, and boy do I love it. A definite upgrade and improvement from my old Acer Aspire 3680.
But despite this, I have noticed that my iMac does have a slight yellowish tint at the bottom to corners. I just arrived at my desk, and the login window (I keep a password lock) had a slight yellowish tint when I woke up my iMac from sleep . I then noticed that the bottom two corners had a slight yellow tint to them. I verified this via the MacRumors Forum post, and I was able to find it out by making my desktop background white. Again, it may not seem noticeable at first, but if you examine it closely, it becomes apparent.
I've already called my local Apple store and one of them said that don't know about this issue (?) and that they could schedule an appointment for me. I declined because I have to have me parents take me and I'm pretty sure that I can't handle the load of carrying a 20lbs. computer w/o dropping it (yikes!).
So here's the big question, should I go to my local Apple store or call the Apple hotline when it's open (currently closed at the time of this thread)? I don't want to sound like a lunatic or someone that just wants to get a better iMac for free. Again, it's slight, but considering that I do movie editing and Photoshop work
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Sep 23, 2010
Now this is my first ever Mac after being dragged into the Apple world by my iPhone and iPad. I love it, everything is a joy to use and i've been surprised at how quickly I have adapted to the world of Mac.
Anyway when I got it home on the day I noticed a spec of dust under the glass. Called Best Buy but surprise, surprise they had sold out of the model I had. No biggie I thought, I will get it looked at one day.
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Nov 27, 2010
So I took the hefty plunge and purchased the 27" i5 from a local Apple Retail Store, believing that Apple would have finally resolved the yellow-tint issue from over a year ago, or at least it would appear in much less iMacs as it has sorta died down on the forums.
Anyways, opened it last night, and continued copying over files to it today, only to notice that it has a slight yellow-tint issue towards the bottom 1/3 of display.
I've already made a genius bar appointment......I even purchased Apple Care on it, so the total was around 2.5k, and I'm hoping for them to allow a swap for another brand new unit? Is this likely, or will they just simply wave me off to a repair or refurb route. After dumping so much $ on it, and even purchasing Apple Care, I wouldn't be satisfied for anything but a straight exchange to a new unit.
Also, will they allow me to open it up right there and check to see that it doesn't have any display issues as well?
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Jun 12, 2010
I have read the many many threads on the Yellow Tint issue although i am concerned about buying a 27" i5 Imac as i've been saving for a while. I'd be really disappointed if i end up with a screeen with the yellow tint issue.
What i would like advice on is the following:-
Has the reason behind the yellow tint issue been found and has it been resolved?
Would waiting for the next updated Imacs be a better option as i am not in a major hurry to buy my imac although i would prefer to buy it sooner rather than later considering the time i have been saving.
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Apr 22, 2010
I have a 27" iMac purchased last January. Every time the computer wakes up, the display activates with normal coloring but after a second "shifts" into a different color profile with a blue'ish tint.
All software updates have been applied. I've reformatted the computer twice since the initial purchase. Problem persists.
I'm well aware of the yellow tinge problem with 27' iMacs, but based on my research of past posts the blue color shift has only been a problem with Macbooks.
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Jun 27, 2010
I hate to complain but this just sucks. After dealing with multiple repairs with my 24" iMac, I got a 27" as a replacement. I always keep my iMac just a bit over half brightness. I have the same problem again! why the same issue is occurring and what should I tell apple if they can't fix it!
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Aug 13, 2008
So I got a brand new iMac 5 days ago and I connected my dell 24" (2407) to it.. I seem to have a yellowish tint.. I tried to calibrate it and it still seems to have it on there... On my pc the dell has a perfect screen.. Yesterday I go to turn on my new iMac and it wouldn't turn on.. I kept on pressing the power button and it wouldn't turn on.. So I unplugged the power cable and put it back in and nope didn't work... so at this point i am upset i pressed it really hard and it turned on.. So i turned it off and pressed the button again and it seems like it is working again, but why would it do that in the 1st place??
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Aug 6, 2009
I have a 15'' iMac G4 with 800 MHZ processor and 768 mb ram. I woke it from sleep one day when suddenly everything had a violent pink tint to it. I had no idea what to do. I've replugged-in the video cable, messed with Colorsync, blew dust from the internal monitor port. I don't know what to do!!
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Apr 10, 2012
I have a mac pro 2x2.66 intel I'm running os x 10.4.11 (i know i'm going to wipe and install soon) I have a 27" apple led connected with the atlong dp400Â first, the issue doesn't seem to be hardware related and is user specific.Â
I have two user accounts. I have been using the monitor and converter for a few months now and it's fine.
A couple of days ago, i logged into user1 (screen res is set to 2560) then I logged into user2 (the res was set to 1920) and user2 was fine as usual. I decided to change the resolution to 2560 and the screen flashed but instead of taking me back to the desktop, it logged me out and when i tried to log back in, it hangs while loading the finder. actually, it logs me out once and then the second time, just hangs. it opens a few finder windows that I had open but doesn't load any desktop icons and then, just hangs.Â
I can log into my user1 account and even another that I made for guests but never use... I just can't log into user2 now. I have been googling and couldn't find the exact problem but i tried some solutions to things that sound similar. Because it seems to be user specific... By logging in with Terminal, i was able to move some preferences out of the users preferences folder and try to restart. plists like; [URL]
but it hasn't worked... I'm hoping I'll be able to get into this account, as i have some info I need to export before i wipe this machine and reinstall. and getting access would be the least troublesome way...Â
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Oct 8, 2009
so before my uncle from china buys a macbook. I just want to make sure for him that during the new mac registration process we can choose chinese language right? And if we do choose it all of the osx will be displayed in chinese? What about the software we install like office or something?
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Apr 9, 2012
I am on a Mac G4 and just installed 10.5.8. I the System Preferences I selected Display and changed the display from 60 hz to 24. Now I get no display. Is there a way to revert back, or access the terminal to change the monitor back so it displays? I know I could reload but that takes a couple of hours.
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May 1, 2012
My daughter was playing with my computer and some how changed the color settings. Everything now looks like it is highlighted
Info:
Mac Pro
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Aug 28, 2014
Screen blurry - toddler started typing on keyboard and changed settings
Info:
MacBook, Mac OS X (10.6.8)
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