Gradient issue

Discussion in 'iMac' started by mifka, Jan 25, 2008.

  1. mifka macrumors member

    mifka

    Joined:
    Dec 21, 2007
    Location:
    Moldova
    #1
    Hi! I have left-->right gradient issue on my 24" iMac.
    If someone can, please post your photos with issue.
    Do you bother about this or you just don't look at this as an issue?
    Thanks.
     
  2. nout72 macrumors regular

    nout72

    Joined:
    Dec 27, 2007
    Location:
    The Netherlands
    #2
    Please, just search this forum or google.
    There are numerous threads about this subject...with all due respect it is getting pretty annoying.
     
  3. Leon Kowalski macrumors 6502a

    Leon Kowalski

    Joined:
    Sep 20, 2007
    Location:
    Gondwanaland Reunification Front HQ
    #4
    [​IMG]

    MAX:MIN brightness ratio = 2.5 : 1 (+/- 0.2) -- or about 1.3 f-stops.

    More photos and technical details here:

    http://picasaweb.google.com/TheLooby

    LK
     
  4. czachorski macrumors 6502a

    czachorski

    Joined:
    Sep 24, 2007
    #5
    If your machine looks anything like Leons, take it back immediately. You should not have to put up with 2.5x brightness variation from an iMac.
     
  5. fluidedge macrumors 65816

    fluidedge

    Joined:
    Nov 1, 2007
    #6
    you've all got me worried now.

    I have a slight gradient problem, well i call it slight, others might say it was a 'bad case', i have had my imac 1 week now, and i have to say i don't notice the gradient issue at all during the day when i'm working. When i watch a DVD it is fine, i don't notice it. I only ever see it when i go looking for it; putting a solid colour b/g and looking at the screen from all angles.

    I really could take it back and get it exchanged, but i've spent all week installing software and setting up my computer settings and i'm not sure i can be bothered to go through all that again. And what's to say i won't get one that is just as bad, or worse!?

    What should i do?

    Also, can we PLEASE make a sticky at the top of the forum on the gradient issue so people know how to look for it and what to do if they have it. Do i contact a mod to have them set up a sticky?
     
  6. kanga macrumors newbie

    Joined:
    Jan 21, 2008
    Location:
    London
    #7
    I was in exactly your predicament fluidedge - bought one last weekend with a slight gradient problem.

    I decided to return it today after showing it to several friends - they all noticed the gradient. It didn't look quite as bad as in Leon's picture, but as others have reported getting perfect screens I didn't want to settle for anything less.

    When I took it back to the store they opened up another for me to look at - it had the same problem. I think I'm going to wait until after they next get speedbumped (hopefully with updated graphics cards) to see if there are fewer reported problems by then.
     
  7. fluidedge macrumors 65816

    fluidedge

    Joined:
    Nov 1, 2007
    #8
    looking at that photo, i think mine is as bad as that. I've just had a second opinion and while they didn't spot it straight away, once we had our eyes adjusted to it we could spot every example we threw at it.

    Sigh

    I'm quite upset about this now. It's going to have to go back i think. I can see it as plain as anything now i'm writing this. I'm annoyed at myself too for not spotting it sooner!

    I live about 20 miles away from an apple store - i bought it online, will it be ok to take it back there? Do you think i should phone up Apple in the morning and speak to someone about it first or just turn up at an Apple store 'all fire and brimstone' ;) (i'll be very nice actually, it doesn't pay to get angry with shop staff! - Maybe they'll throw in a freebie - 2.8GHz upgrade :p!?)

    What's the process for uninstalling everything? Do i just put the OS install disks in and follow the instructions for a clean install of leopard?
     
  8. nout72 macrumors regular

    nout72

    Joined:
    Dec 27, 2007
    Location:
    The Netherlands
    #10
    Hmmm, my apologies, I thought there were already enough threads about the gradient issue (and not exclusively on this forum)
    I must have been wrong...:confused:
     
  9. Leon Kowalski macrumors 6502a

    Leon Kowalski

    Joined:
    Sep 20, 2007
    Location:
    Gondwanaland Reunification Front HQ
    #11
    Just boot from the install disks, select a language, open Disk Utility.app
    (under "Utilities" on the menu bar), and erase the drive -- after selecting
    the "zero-fill" Security Option.

    Don't bother to reload anything. Apple won't reuse a customer-installed OS;
    they'll do their own re-imaging before repairing/reselling it.

    LK
     

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