Fix for the gradient issue... (not for graphics pro's)

Discussion in 'iMac' started by CalMin, Dec 23, 2007.

  1. CalMin macrumors 6502a


    Nov 8, 2007
    So, 2 weeks into ownership I'm loving my 24" iMac 2.4. The thing is sweet and a nice upgrade from my G5 2.1ghz 20"

    Only thing is the gradient issue. I have read and read about this and when I look at my screen, yup, it's ever so slightly darker on the right than the left. I'm not sure, so I run a variety of apps. Over the next two days, I noticed it more and more and thought about lugging it over to the Apple store for replacement. The screen is otherwise perfect, no dead pixels, nothing. Just beautiful colors that pop - my photos never looked so good.

    But... there's this gradient thing. And I can't get over it. It's there. I know it's there. I've read about it and the whole internet sees it. And again, my screen is darker on the right than it is on the left.

    So, I get my wife and say to her, "anything you notice about the screen? any imperfections?". She looks at me like I'm crazy and tells me other than a fingerprint smudge on the right, it's the most beautiful computer we've ever owned. I relax.

    But then there's this gradient thing. It must be true, there are posts everywhere. I go to the Apple forums. Again, my screen looks darker on the right than it is on the left. Aaagh!

    So I get two friends and two family members. They don't know about the gradient issue. I offer them a bottle of wine for anyone that can see a fault with my display. They like a drink or two, so this is a real incentive. One of them points to the same fingerprint smudge (I hadn't cleaned it yet). The others tell me it's the most beautiful computer they have ever seen.

    I relax and continue enjoying my computer. I take some more photos. My pictures still "pop" with a depth I didn't get on my G5. If I search and inspect, the gradient issue is there, but if I hadn't read about it, I doubt I'd have ever seen it.

    Bottom Line

    Your mileage may vary, but if you suspect a display issue, ask a friend who hasn't heard about it to inspect it. Don't bias them by telling them what to look for. If they see something, then you have a problem. If they don't notice, then the chances are that it's not a problem worth worrying about. That is, unless you're a graphics pro and your living depends on it. But if you're a graphics pro then a computer with a built-in display shouldn't even be on your shopping list.
  2. tradosaurus macrumors newbie

    Oct 3, 2007
    Take 2 placebo's and call me in the morning if you are still seeing gradient issues. :)
  3. Sun Baked macrumors G5

    Sun Baked

    May 19, 2002
    Maybe we should provide you with a link so you can find dead/stuck pixels.

    Then you have something else to obsess about. :p
  4. synth3tik macrumors 68040


    Oct 11, 2006
    Minneapolis, MN
    iMacs with glossy screens are not for graphics pros
  5. urmel macrumors newbie

    Apr 20, 2007
    Set brightness to maximal!! and use the attached profile. The gradient has (almost) gone...
    Brightness is adjusted to 120 candela what is recommented for photos and stuff

    merry xmas

    Attached Files:

  6. airjuggernaut macrumors 6502a

    Oct 16, 2007
    Gradient has never been an issue for me, (well, just annoyed that it exists, but dosent really bother me much)
    The only issue i have with my iMac is the NOISE. The GOD DAMN Humming that comes out of this thing is driving me nuts. Also, I get random crashes and black screens...but im guessing that has more to do with OSX than the actual hardware,

    But you're right, the issues that seem to bother us everyday are usually only noticeable by us. I have asked my Family members about the Humming, they think I'm crazy, cause they don't hear anything. So it basically boils down to two options.
    Either Return the product, exchange or get the product repaired.
    Enjoy what you have, and ignore the issues.
  7. nout72 macrumors regular


    Dec 27, 2007
    The Netherlands
    Great colorsync profile!!
    It is nearly identical to the result I get when using my own calibration in partnership with the program DarkAdapted (which was necessary to dim the brightness).
    Now I can simply use this profile and no longer need to use DarkAdapted (with the setting "refresh gamma every 1 second", which eats some costly CPU)
    Thanks for sharing this!
  8. wextasy macrumors newbie

    Nov 17, 2007

    I'm a recent PC convert, so I have to ask a stupid question: How do I import this profile? For some reason, I'm having problems figuring this out. Overall I love the mac. I don't think I'll ever be able to use a PC as my primary home system again. I do notice the gradient issue, but the Pros far outweigh the Cons! I love the OS. I'm just having a few minor issues finding where things are, because I'm so used to the MS world. Any help would be appreciated!
  9. nout72 macrumors regular


    Dec 27, 2007
    The Netherlands
    Place the file, in the colorsync Profiles folder of your Library (NOT the system library)

    Disk -> Library -> ColorSync -> Profiles
    Disk -> Users -> your user Folder -> Library -> ColorSync -> Profiles

    Then open System Preferences from the Finder menu -> Displays -> Color and as you can see the new profile is added.
    If not you may want to uncheck "Only show profiles for this screen"
  10. SaSaSushi macrumors 68040


    Aug 8, 2007
    Takamatsu, Japan
    Maybe my eyes are shot but this profile is WAY too dark for me even with the iMac's brightness set to max. It also makes pure white look brownish yellow for my eyes.

    I would offer my own calibrated color profile but I really think people need to run it for themselves since so many variables such as the ambient lighting of the room and the location of windows, etc exist.

    From System Preferences > Display > Color click on the Calibrate button and make sure the Expert Mode check button is clicked. For those who have not done a calibration I recommend they carefully complete each step I think they will end up with a vastly improved display.
  11. wextasy macrumors newbie

    Nov 17, 2007
    Thank You! It is very dark compared to what I was using, but I think I'll try it out for a little while. It might be a easier on the eyes than the one I was using.

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