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Jan Sampermans

Q: New iMac 27inch screen flickering/tearing/shutoff

I have been experiencing some problems with the all new iMac 27inch display.
At non-fixed intervals i will get one of the following:

Screen distortion/flicker somewhere random in the screen (feels like it is more in the lower part) that looks like a horizontal bar of about 2-3inches just popping in and out of the screen.

Screen will go completely black for a second and then come back on. Sometimes 2-3 times in a row.

Somebody else already made some video-clips about these problems, I am experiencing exactly the same behaviour.

http://www.youtube.com/watch?v=SjOxlxVz5Os
http://gallery.me.com/larzy#100025

Just to not that in the course of writing this post my screen has flickered 13 times and has gone black 2 times.

iMac 27inch 3Ghz 4GB 1TB ATI 4670, Mac OS X (10.6.1)

Posted on Oct 27, 2009 3:56 AM

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Q: New iMac 27inch screen flickering/tearing/shutoff

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  • by star-fish,

    star-fish star-fish Jan 29, 2010 3:17 PM in response to Warren Beasley
    Level 2 (195 points)
    Jan 29, 2010 3:17 PM in response to Warren Beasley
    Warren Beasley wrote:
    Hello Star-fish,

    I too would be most appreciative if you could better explain what you mean by "a work email". Are you saying that your employer distributed this email to all of their employees, or are you saying that Apple sent you this message at your work email address?

    As I said in my previous message, the fact that the message states "Unfortunately multiple machines remain affected including machines we have repaired or replaced", it is contradictory to the contents of the alleged Apple internal memo that is on the Gizmodo site.

    Again I ask, if Apple knows that the repairs haven't worked -- and screen replacement has been one of the repairs -- then why plan for a wide-scale panel replacement in three weeks? Is it just a placebo to placate people?

    Personally, I have my doubts regarding the authenticity of the email message that you shared, because some of the grammar is incorrect, and I can't picture a professional company like Apple sending out an email with such mistakes in it. I am specifically referring to phrases like "Apple have indicated" and "Apple are working on". Obviously, being as Apple is an entity, it should be "Apple HAS indicated" and "Apple IS working on".

    If it really is a letter from Apple, they had better give their employees some English lessons.


    It is an email from an Apple reseller.

    I thought that about the Gizmodo thing too, but on second reading the Gizmodo one is referring to the yellow tinge, wheereas my email refers to the flicker.

    That's your choice whether to believe it or not. Maybe you should wait three weeks and see what happens. It
    may be woth noting that this email was sent by a UK company, so whether this is European policy, UK policy
    or Apple-wide policy, I have no idea.

    As I said, it's not an email Apple has sent out. Unfortunately in my company there is a policy of
    referring to a company in the plural because they think it sounds more familiar and refers to the people behind
    the company rather than an impersonal front. And no, I don't agree with it either.

    And if anyone is passively-aggressively suggesting I'm a troll - why would I have posted tons of messages
    trying to help people out to then suddenly do a complete 360?
  • by citrus101,

    citrus101 citrus101 Jan 29, 2010 3:20 PM in response to Ettore dn
    Level 2 (235 points)
    Jan 29, 2010 3:20 PM in response to Ettore dn
    Don't forget about delivery delays.


    Ciao Ettore, you're right, this could be the cause.
  • by jdaluz,

    jdaluz jdaluz Jan 29, 2010 4:10 PM in response to Eric Fauque
    Level 1 (0 points)
    Jan 29, 2010 4:10 PM in response to Eric Fauque
    Hello,

    It's been two weeks since I got the LCD panel and v-sync cable replaced on my 27" iMac -- I posted my experiences here when I got it back. It is completely problem-free at this point. I had the flicker/blackout issue happening every couple of hours or so before so I am pretty confident that the problem was solved by the repair. I did not have any of the other issues reported by forum posters including the yellow screen.

    The very best of luck to others awaiting a resolution to their iMac problems!

    Joe daLuz
  • by pazuita,

    pazuita pazuita Jan 29, 2010 4:11 PM in response to Warren Beasley
    Level 1 (20 points)
    Jan 29, 2010 4:11 PM in response to Warren Beasley
    Warren:

    I fully understand your point, I simply disagree with you.

    I did not accuse any one specific person of intentionally lying. Had I done so, yes, you would be right, I should provide some substantial information to back up that claim. What I did was make a general statement that is true and correct.

    Surely you are not claiming that no one on this forum has ever spread misinformation, intentionally or otherwise.

    I simply made a general statement that some on here are guilty of doing so. I simply leave it up to each of you to determine who it is. I have no obligation to go further. I am not a moderator here, and I do all I can to avoid personal attacks that only drag this thread off topic, as you and I are doing now.

    We are all aware of that fact. Not everyone on here is honest, but sometimes it is just a matter of interpretation.

    The act of questioning someones statement is in itself an accusation, which you yourself have done on several occasions.

    Your methods are simply more covert than mine. What I state blatantly, in general, you do specifically, in a gray area.

    I am just trying to point out the fact that not all of the information contained on this thread is accurate, and there are always those among us who will do what they can to confuse the issue.

    Agree with me if you like, or not, that is your choice.

    Divisive......absolutely, separate the good guys from the bad guys. Everyone should be suspicious of everyone else on here, especially those that agree with you.
  • by Warren Beasley,

    Warren Beasley Warren Beasley Jan 29, 2010 4:18 PM in response to jdaluz
    Level 1 (0 points)
    Jan 29, 2010 4:18 PM in response to jdaluz
    jdaluz wrote:
    It's been two weeks since I got the LCD panel and v-sync cable replaced on my 27" iMac -- I posted my experiences here when I got it back. It is completely problem-free at this point. I had the flicker/blackout issue happening every couple of hours or so before so I am pretty confident that the problem was solved by the repair. I did not have any of the other issues reported by forum posters including the yellow screen.


    Great news, Joe!

    I just have one thing to say, and I'll say it BIG:




    !http://anuragbhatia.com/wp-content/uploads/thumbs-up.jpg!

    Message was edited by: Warren Beasley
  • by Warren Beasley,

    Warren Beasley Warren Beasley Jan 29, 2010 4:49 PM in response to pazuita
    Level 1 (0 points)
    Jan 29, 2010 4:49 PM in response to pazuita
    pazuita wrote:
    The act of questioning someones statement is in itself an accusation, which you yourself have done on several occasions.

    Your methods are simply more covert than mine. What I state blatantly, in general, you do specifically, in a gray area.


    Pazuita, this will be my last comment on this issue. If I fail to get my point across, then so be it. I don't wish to drag this on any further.

    In my view, there is a big difference between asking for a further clarification of someone's statement, or asking for the source of someone's information, as I have done, and making statements in which you outright accuse people -- even if only in a general sense -- of posting "half-truths" and "outright lies". Those were your choice of words, and not mine.

    To ask for a clarification isn't accusing anyone of anything, and it is most certainly not attacking their character. It is simply an attempt to get more information, or to better understand a person's viewpoint. It is one thing to question the information, and another to question the person.

    On the other hand, using such strong phrases such as "half-truths" and "outright lies", and directing such phrases to the general body of posters here, most certainly is making accusations.

    I doubt that there are few people in this thread who won't find such phrases both inflammatory, taunting, offensive and lacking respect for fellow posters here. I suspect that the fact that you paint with such a broad brush makes some people uncomfortable here as well.

    In case you have forgotten, Apple's forum policy states in part:

    "Be polite. Everyone should feel comfortable reading Submissions and participating in discussions. Apple will not tolerate flames or other inappropriate statements, material, or links. Most often, a "flame" is simply a statement that is taunting and thus arbitrarily inflammatory. However, this also includes those which are libelous, defamatory, indecent, harmful, harassing, intimidating, threatening, hateful, objectionable, discriminatory, abusive, vulgar, obscene, pornographic, sexually explicit, or offensive in a sexual, racial, cultural, or ethnic context."

    So your choice of accusatory phrases is not polite, they don't make people feel comfortable, they are inflammatory, and they taunt.

    Need I go on?

    I'm done.
  • by Dino1956,

    Dino1956 Dino1956 Jan 29, 2010 5:00 PM in response to Warren Beasley
    Level 1 (41 points)
    Jan 29, 2010 5:00 PM in response to Warren Beasley
    Warren,
    Just to Clarify. there were certain abusive posts in this Thread, many pages before you joined us. They actually made some derogatory statements towards me as well. Just for the Record!
    Dino
  • by edd18r,

    edd18r edd18r Jan 29, 2010 6:47 PM in response to pazuita
    Level 1 (0 points)
    Jan 29, 2010 6:47 PM in response to pazuita
    Pazuita,
    considering this is my second post here Im guessing I'm one of there trolls you are referring to. Take note I am no. Unlike you many of us don't feel the need to post inane and unhelpful comments repetitively.
    Cheers
    ed
  • by Eric Fauque,

    Eric Fauque Eric Fauque Jan 29, 2010 8:31 PM in response to jdaluz
    Level 3 (989 points)
    Photos for Mac
    Jan 29, 2010 8:31 PM in response to jdaluz
    Jdaluz,

    Thanks for the update!
  • by surabayjim,

    surabayjim surabayjim Jan 29, 2010 9:55 PM in response to star-fish
    Level 1 (0 points)
    Jan 29, 2010 9:55 PM in response to star-fish
    This email fits in with my experience. I brought my very sporadically flickering iMac to an Apple store and was told that they would not repair the unit right now, and I was kindly asked to wait until contacted by Apple directly in the next few weeks as the engineers are working on a solution.
  • by Warren Beasley,

    Warren Beasley Warren Beasley Jan 29, 2010 11:04 PM in response to star-fish
    Level 1 (0 points)
    Jan 29, 2010 11:04 PM in response to star-fish
    star-fish wrote:
    It is an email from an Apple reseller.


    As I said, it's not an email Apple has sent out . . .


    Hello again Star-fish,

    Thanks for taking the time to clear up the confusion that some of us were having regarding the origin of the email message.

    Regarding the the email message itself, as you said, time will certainly reveal the truthfulness of -- or lack thereof -- the issues that are discussed in it.

    We will be entering the fourth month of these controversies in another day. That is far too long in my view.

    We all simply want resolution to our iMac problems once and for all.

    We expect it; we demand it; and we certainly paid enough for it.
  • by pazuita,

    pazuita pazuita Jan 29, 2010 11:05 PM in response to Warren Beasley
    Level 1 (20 points)
    Jan 29, 2010 11:05 PM in response to Warren Beasley
    Warren:

    I am glad to see that this is your final post on the subject, i will make it mine as well.

    We are not going to agree, that is clear.

    I will only add that if you had been with this thread from it's early days, my statements would be far more clear to you.

    If you truly want a clarification of my remarks, then simply read some of the earlier posts.

    As Dino pointed out, he was one of several who was the target of inane, and unwarranted remarks on this thread.

    To give name to the trolls only adds to their substance, and only gives them reason to continue their actions. I for one, do not intend to do that, and try not to respond to them directly, no matter what they post. That is not always easy.

    It's a very simple rule to follow.

    Don't feed the trolls.
  • by HiFiRobbie,

    HiFiRobbie HiFiRobbie Jan 30, 2010 12:34 AM in response to pazuita
    Level 1 (0 points)
    Jan 30, 2010 12:34 AM in response to pazuita
    SSOOOOOoooooo....

    How 'bout them new iMacs huh?

    Just an update on mine.

    I was called yesterday by the techs to say that they are replacing the display in my i5 and I shouod have it back on Monday.

    My fingers are firmly crossed!!!
  • by Warren Beasley,

    Warren Beasley Warren Beasley Jan 30, 2010 12:56 AM in response to Dino1956
    Level 1 (0 points)
    Jan 30, 2010 12:56 AM in response to Dino1956
    Dino1956 wrote:
    Warren,
    Just to Clarify. there were certain abusive posts in this Thread, many pages before you joined us. They actually made some derogatory statements towards me as well. Just for the Record!


    Hello again Dino,

    Just so you know, and as I believe I may have mentioned before, prior to making my first post in this thread on November 28th, I read through every single prior post, beginning with the very first one. Being as I immediately subscribed to this thread, I have received, and read, every single message that has arrived in my in-box.

    My point is, while I may not remember everything -- and who could with so many entries in this thread -- I am aware of everything that has been going on, and everything that has been said, in this thread. I am also aware of the modus operandi that some people use in this thread. I find some of it comical, and some of it annoying after a while, because the motivations of such people are so easy to read.

    Anyway, would I be correct to assume that you are referring to the fact that, for a time, you were personally feeling like some people might be laughing behind your back, because of your insistence that using Onyx was curing the flicker problem?

    BTW, as I write this, I have now completed my first nine days without experiencing a single flicker or blackout on this, my very first iMac.

    Thus far, my problems appear to be limited to a few dead screen pixels -- as well as some dead iSight pixels -- and the slight yellow tinge which extends from the lower right corner of my screen.
  • by sparkie1984,

    sparkie1984 sparkie1984 Jan 30, 2010 2:34 AM in response to Warren Beasley
    Level 1 (0 points)
    Jan 30, 2010 2:34 AM in response to Warren Beasley
    I believe dino is pointing to the fact that pazuita was accusing him amonst others including me of being said trolls.
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