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New iMac 27inch screen flickering/tearing/shutoff

453416 Views 4,486 Replies Latest reply: Feb 9, 2010 6:59 AM by Brett L RSS
  • pors Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jan 23, 2010 6:32 AM (in response to citrus101)
    citrus101 wrote:
    I would call it a bad good one. How can you accept the yellow tinge? Maybe I'm to pedantic, but for so much money I expect that the screen is neither flickering nor showing a yellow tinge. I could never accept it.


    I understand your point of view (and do accept it), but I must admit that I would never have seen it, when there weren't other people reporting about it. As I use an excellent external Eizo display for image editing I still can live with the yellow tinge. But it might be that I'll ask for an exchange of the LCD panel once the flickering issue is solved for sure. Otherwise I would be afraid of getting a bad and flickering display as replacement unit.
    iMac 27 i5, Mac OS X (10.6.2), 1st iMac: 946 (flickering), replaced by iMac 950 (so far flicker free)
  • citrus101 Level 2 Level 2 (235 points)
    Currently Being Moderated
    Jan 23, 2010 6:51 AM (in response to pors)
    ... but I must admit that I would never have seen it, when there weren't other people reporting about it.


    ... and rickstervt wrote yesterday:
    "Exactly, I bet most people don't notice. My wife would have never noticed this inconsistent screen had I not pointed it out."

    I've a bad suspicion ... I SMELL A RAT!!!
    iMac 24", Mac OS X (10.6.2), Bootcamp W7
  • pors Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jan 23, 2010 7:45 AM (in response to citrus101)
    citrus101 wrote:
    I've a bad suspicion ... I SMELL A RAT!!!


    And what are you suspicious about in detail?
    iMac 27 i5, Mac OS X (10.6.2), 1st iMac: 946 (flickering), replaced by iMac 950 (so far flicker free)
  • Dino1956 Level 1 Level 1 (40 points)
    Currently Being Moderated
    Jan 23, 2010 7:57 AM (in response to pors)
    pors. How long have you had it for? I had Yellow Tinge on a 21.5 & I almost kept it because I also would have noticed if I had not seen the posts or performed the Gray Bar Test. But 5 days later it started to flicker. So In my case, I had to exchange it. Be on the lookout. Not jinxing you or nothing, but I know mine was Flicker Free for 5 entire days of being used 14 hours a day.
    Mac Mini 1.83 Intel Core 2Duo 2GB Ram, Mac OS X (10.6.2)
  • Warren Beasley Level 1 Level 1 (0 points)
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    Jan 23, 2010 7:58 AM (in response to pors)
    pors wrote:
    . . . I must admit that I would never have seen it, when there weren't other people reporting about it.


    I find it interesting how a number of different people have shared similar sentiments in this thread regarding the infamous yellow tinge.

    In similar fashion, I don't doubt that some of us here would not have even looked for it, had it not been brought to our attention by other posters.

    My point is, if it requires someone else to even tell you that the yellow tinge is there, or may possibly be there, then it must not be that bad, and is perhaps even acceptable for the casual user who is not a demanding graphics artist, for example.

    As I noted a few days ago, checking for the yellow tinge was one of the first things that I did when I received my unit on the 21st of this month. I used the online yellow tinge test, as well as the HTML document that I have here on my hard drive, and as far as I can tell, there is no yellow tinge to any degree.

    Regarding the screen flickering and blackouts, I have just entered my third day of use, and thus far, I have not encountered either problem with my week 51 i7 iMac. This is a BTO with the 2.8 GHz upgrade, 8 GB of RAM upgrade, and 2 TB Hitachi HD upgrade.

    Is it possible that the base units are more susceptible to the various problems that we've been discussing in this forum?. Perhaps the BTO's receive more scrutiny. Just a guess.

    But in balance, I know that I am far from out of the woods yet. I just hope that I'm singing the same song a few weeks from now.

    This machine is absolutely gorgeous, and I've slowly been adding more of my personal apps to it. Yeah, Pazuita, I am weakening.

    A final note: Guys and gals, if you want to really see your machine shine, download some of the 2560 x 1600 nature wallpapers. I've now got 133 of them on my new iMac, and I have the desktop set to change every 30 minutes. Absolutely wonderful...and inspiring!
    2.8 GHz Quad Core i7 iMac / 8 GB RAM / 2 TB Hard Drive, Mac OS X (10.6.2), (1) Iomega 1 TB eGo USB Drive / (1) Pioneer 111D External DVD Burner
  • citrus101 Level 2 Level 2 (235 points)
    Currently Being Moderated
    Jan 23, 2010 8:01 AM (in response to pors)
    There're some voices here saying, that the problem is not widespread and I really would like to believe that. Well, my bad suspicion is, that there could be lot of people not reporting about the issues, because they don't notice them.
    iMac 24", Mac OS X (10.6.2), Bootcamp W7
  • p.hugo Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jan 23, 2010 8:17 AM (in response to Dino1956)
    Hi guys...
    just to let you know that the shipping has became 3 weeks by today in Italy... Incredible! Apple probably has a big problem with this unlucky iMac. It's definitely a hw issue in my opinion.

    I'll wait for the next iMac generation, next hw upgrade.
    iMac 20" 2.0 GHz, Mac OS X (10.5.6)
  • Dino1956 Level 1 Level 1 (40 points)
    warren, the problem is once you see the Yellow Tinge, you see it ALL the time! And it bugs the **** out of you. On the Gray Bar test, the bottom bar appears a lot lighter & more Faded than the top Bar (if yours has the Yellow on Bottom of Screen like mine did). But I copied & pasted bottom bar directly underneath the top bar. That is when it is obvious.
    [img]http://img.skitch.com/20100123-gwdb5ypqprbgnarrk75wmw2nw.preview.jpg[/img]
    Click for full size - [color=#A7A7A7]Uploaded with plasq's Skitch[/color]
    Mac Mini 1.83 Intel Core 2Duo 2GB Ram, Mac OS X (10.6.2)
  • pors Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jan 23, 2010 8:49 AM (in response to Dino1956)
    Dino1956 wrote:
    pors. How long have you had it for? I had Yellow Tinge on a 21.5 & I almost kept it because I also would have noticed if I had not seen the posts or performed the Gray Bar Test. But 5 days later it started to flicker. So In my case, I had to exchange it. Be on the lookout. Not jinxing you or nothing, but I know mine was Flicker Free for 5 entire days of being used 14 hours a day.


    It was delivered 14. december, so it's flicker free for more than once now (even if I had to admit that I have traveled quite a bit the last weeks and thus not used it every day - maybe every second day in average).

    No doubt, when flickering should appear also on this Mac I won't leave it like that. And when the flickering issue has been solved I might ask Apple for an exchange of the display because of the yellow tinge.
    iMac 27 i5, Mac OS X (10.6.2), 1st iMac: 946 (flickering), replaced by iMac 950 (so far flicker free)
  • Eric Fauque Level 3 Level 3 (985 points)
    Currently Being Moderated
    Jan 23, 2010 8:54 AM (in response to p.hugo)
    p.hugo,

    3 Weeks shipping in north America as well.

    let's hope it's because they found a fix and are applying it to all machines before shipping them
    27" imac C2D, Mac OS X (10.6.2)
  • Brian_1338 Calculating status...
    Currently Being Moderated
    Jan 23, 2010 10:22 AM (in response to pazuita)
    pazuita, I clicked your link, but my browser warned me it contains malware. No thanks. Plus, it looks like it's a link to a tag search, not a specific analyst report. I think you need to try again.

    Plus - we're talking about 27" iMacs, not desktops in general (which consist of a) Mac Pros, b) Mac Minis, c) cheaper and smaller iMacs, and d) 27" iMacs).

    Nothing conservative at all in your speculation, mate!
    Was: iMac i7, Mac OS X (10.6.2)
  • Brian_1338 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jan 23, 2010 10:37 AM (in response to pazuita)
    Plus - let's entertain 865k as an accurate analyst guess, based on a projected growth rate of 19% over the same quarter last year. That means last year's quarter had...

    865 / 1.19 = 727k

    ...desktop units sold. Let's then apply the more aggressive 74% estimate to 727k.

    727k * 1.74 = 1,265k

    So that means potentially 1,265k desktop Macs sold last quarter. That means that, for the 27" iMac to have sold over a million units, Apple would have had to sell less than 265k Mac Pros, Mac Minis, and 21.5" iMacs combined. Doesn't really seem likely.

    Oh, but wait - the 74% estimate doesn't actually cover all desktop units - it only covers iMacs:

    http://www.computerworld.com/s/article/9142432/Apples_iMac_sales_jump_74_inU.S.

    So 74% needs to get applied to a basis considerably less than 727k. Oh, and also from that article:

    +"...sales of the less-expensive 21.5-in. iMacs were greater than those of the pricier 27-in. version...+"

    So not only is our basis for 27" iMacs less than 727k, but it's at least HALF of 727k (ignoring all the other desktop Macs that constitute the 727k):

    (727 / 2) * 1.74 = 632k

    That means a ceiling of 632k 27" iMacs sold, at the very most. That's also assuming zero Mac Minis or Mac Pros were sold. That's also ignoring the incredible supply / delivery issues that have plagued Apple, the fact that they weren't even available during all of October / November, etc.

    Based on the above numbers & reports, I'd guess maybe 100-150k 27" iMacs were sold Oct - Dec last year.
    Was: iMac i7, Mac OS X (10.6.2)
  • kgofswg Calculating status...
    Ok, so my screen flickering has started to become more frequent today (it only happened a few times previously while working in Photoshop), so I just called Apple to set up a replacement and the supervisor told me that they are VERY aware of the problem and are not doing replacements at this time. Only REFUNDS because they "know" it's a firmware update issue. The estimated time they are expecting the firmware update to be available is in 15-20 days (hence the reason the new machines have a 3 week shipping delay). The supervisor said that if the new firmware update still doesn't resolve the problem and it turns out it's also a hardware issue, that a replacement will be issued. He was pretty sure of himself that it was only a firmware issue...but we all know how that goes!!

    -Steve
    Los Angeles, CA
    i5, Mac OS X (10.6.2)
  • Dino1956 Level 1 Level 1 (40 points)
    Currently Being Moderated
    Jan 23, 2010 11:49 AM (in response to kgofswg)
    Steve, it's amazing how many conflicting stories we are hearing from everyone that calls . Now there back to the Firmware Update. Last I heard, it was a Hardware issue. It would make every one on this thread very happy if it could be permanently corrected with firmware. Did the rep say it would fix the Flicker on the 21.5 " iMacs with the NVidia Card? Last time around, they excluded the 21.5 as if it never had a flicker issue, which is not the case. Me & a couple other folks on here are living proof. *The 21.5" NVidia has Screen Flicker & Yellow tinge!!* Maybe if someone sees that in Bold, they'll notice us little guys & read it. I hop your Rep knew what he was talking about. Thanks for the info.
    Dino
    Mac Mini 1.83 Intel Core 2Duo 2GB Ram, Mac OS X (10.6.2)
  • pazuita Level 1 Level 1 (20 points)
    Currently Being Moderated
    Jan 23, 2010 11:49 AM (in response to Brian_1338)
    Ignore the link if you wish, I figured as much.

    The link is valid, there is no malware.

    http://computerworld.com.ph/tag/imac/

    The link is to an article published by Computer World, and the analysts it quotes are Brian Marshall, of BroadPoint AmTech, and Stephen Baker of NPD.

    You asked for it, I provided it.

    You are perfectly within your rights to argue with the professional analysts, they are not always correct, but given the option of their opinion, and yours, I'm afraid that you come out on the short end of the stick.

    My posts have consistently mentioned the "new models" which includes the 21.5's as well as the 27's, not the Mac Pro's or the MacMini's.

    The 21.5 was the best selling desktop in the US in October, prior to the availability of the 27's.

    100 to 150,000 27"ers sold is just plain ridiculous, but, stick by that if you choose.
    i7 iMac, Mac OS X (10.6.2), Apple/AppleIIC/AppleIIE/AppleIIGS/Mac+/RevBiMac/1GhzG4/Dual3.06(Deceased)/i7

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