Blue tint on 27" iMac Wakeup

Discussion in 'iMac' started by Ryvius, Apr 22, 2010.

  1. Ryvius macrumors member

    May 4, 2004
    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.

    Has anyone else experienced this problem? Any ideas or tips on resolving?

    I'm stumped.
  2. raysfan81 macrumors 6502a


    Oct 6, 2009
    North Carolina
    I'm guessing its a GPU problem. My xbox 360 started turning blue while I was playing and then eventually there was no signal from the GPU so I'm guessing its a similar issue, but I'm not sure. Good luck.
  3. mtnDewFTW macrumors 6502a

    Oct 26, 2009
    San Francisco, CA
    I've had that same problem with my old one, and my replacement.
    It's not really a issue. Actually it only seems that way to you because of the color shift.
    When I wake mine up from sleep, the screen is REALLY bright yellow and then goes to normal. And it may seen blueish, but that might just be the stuff on your desktop.

    I have no idea what this may be, but it's not bothering me since I'm not seeing anything wrong with the machine in general.
    But if I had to guess, it would be the screen warming up, since they use LED screens the warmup is different than LCD which goes from dark to normal slowly.

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