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Q: 24 inch LED cinema Display momentarily goes black

I have a 24inch LED Cinema Display attached to the mini-display port of a ATI Radeon HD 4870, with a 23inch Cinema Display attached to the other port. The 23 inch is fine but the 24 inch display every so often goes BLACK for a second or two. I thought it was the display and had it replaced but it's happening with the replacement. Perhaps the video card, or even the mini-display port on the card? Anyone having this issue or have any ideas? I appreciate your help.

2 x 2.26 GHz Quad-Core Intel Xeon, Mac OS X (10.5.7), 8GB ram

Posted on Jun 25, 2009 3:23 AM

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Q: 24 inch LED cinema Display momentarily goes black

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  • by waltmorton,

    waltmorton waltmorton Jan 26, 2011 9:03 AM in response to waltmorton
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    Jan 26, 2011 9:03 AM in response to waltmorton
    Several days have passed since I wrapped my cable in RF shielding material. No flickering so far. Maybe this is a solution -- at least for some -- fingers remain crossed.
  • by Yk2kc7bAa,

    Yk2kc7bAa Yk2kc7bAa Feb 8, 2011 2:42 PM in response to waltmorton
    Level 1 (0 points)
    Feb 8, 2011 2:42 PM in response to waltmorton
    I also have the flicker / all-out fail on the 24" LED. I suspect that my USB headphones might have something to do with it, even when engaged via the laptop. Downgrading the headphones to the mini-jack on the laptop eliminates flicker altogether. No headphones at all and I still get the random 2-second flickering or total outage requiring power cycling the display and reconnecting all-in-one cabling.

    Monitor is at work and is less than a year old. Have already had one logic board replacement from the Apple Store, that helped for about a month. I'd prefer to RMA this terrible inconvenience at this point.
  • by Sherlock1965,

    Sherlock1965 Sherlock1965 Feb 9, 2011 12:35 PM in response to Motionworks
    Level 1 (0 points)
    Feb 9, 2011 12:35 PM in response to Motionworks
    At last my cinema display is fixed !

    Took it into my friendly Apple store in Manchester UK, they tested it, could replicate the intermittent flickering black screen and replaced the entire LED panel inside the screen at a cost of over £400 on warranty, (even though 3 months out of warranty). All fixed now and very happy indeed.

    I suggest that many of the proposed solutions on this forum including replacing leads etc are a waste of time - respectfully.
  • by leesilberkleit,

    leesilberkleit leesilberkleit Mar 27, 2011 6:17 PM in response to Sherlock1965
    Level 1 (0 points)
    Mar 27, 2011 6:17 PM in response to Sherlock1965
    Friendly bump to this
  • by Thorsten Geissler,

    Thorsten Geissler Thorsten Geissler Mar 31, 2011 12:30 PM in response to Motionworks
    Level 1 (5 points)
    Mar 31, 2011 12:30 PM in response to Motionworks
    My 24 inch Apple LED cinema Display momentarily goes black even after 10.6.7 update. The display is connected to my new 15 inch MBP i7. Talked to "Genius" @ the Apple store in my town. No help, no solution provided. Any ideas? I am kinda frustrated with Apple to be honest.
  • by Thorsten Geissler,

    Thorsten Geissler Thorsten Geissler May 7, 2011 3:30 PM in response to Mario Rasch
    Level 1 (5 points)
    May 7, 2011 3:30 PM in response to Mario Rasch

    I agree. Talked to AppleCare. Solved nothing. Ridiculous!! I about had it with Apple. It's annoying me and I am g etting really upset. I applied the latest patches and updated the firmware on 2011 MBP (13 inch). Nothing changed. LED cinema display still goes black momentarily. *****!

  • by Thorsten Geissler,

    Thorsten Geissler Thorsten Geissler May 8, 2011 6:25 AM in response to Motionworks
    Level 1 (5 points)
    May 8, 2011 6:25 AM in response to Motionworks

    Update - Turned on my computer at 6:00 AM. my time. Already, went "black" twice within 24 minutes. Can't wait what this glory day will bring. I am thinking about talking to a lawyer about this issue.

  • by scouse59,

    scouse59 scouse59 May 9, 2011 7:41 AM in response to Thorsten Geissler
    Level 1 (0 points)
    May 9, 2011 7:41 AM in response to Thorsten Geissler

    My 24 inch display now sits behind a samsung monitor. It is now a very expensive webcam.

  • by Michael Vallance,

    Michael Vallance Michael Vallance May 24, 2011 5:30 PM in response to Motionworks
    Level 1 (81 points)
    Desktops
    May 24, 2011 5:30 PM in response to Motionworks

    After 8 frustrating months and 3 returns, Apple has replaced my 24 inch monitor with a new , larger one. No extra fee. I bought AppleCare too.

    Michael

  • by Rmusictrax,

    Rmusictrax Rmusictrax Nov 16, 2011 5:28 PM in response to Motionworks
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    Nov 16, 2011 5:28 PM in response to Motionworks

    My 24 inch LED cinema display which I use with my Macbook pro went black a few days ago for no apparent reason. I just came back from the Apple Store with the infamous 10% rebate card and a huge door stopper, or a huge usb hub..... whatever. I'm not impressed. Apple monitors are 3 times the price and who would think of taking an extended warranty on something like that, in all my years i've never had a monitor go black on me, ever, except this overpriced piece of made in china *****.

     

    After being a hardcore Apple fan for years, my infatuation of the Apple brand has been deflated quite a bit tonight. I've come back to reality. Apple products are no better than any other and are NOT worth the asking price. Its all a figment of the imagination made possible by marketing.

    My advice, buy a less expensive monitor from another company. At least if something goes wrong you won"t have overpaid for it. You can buy a 27" Samsung monitor which looks incrediblbly good for 1/3 of the price.

     

    My 2 cents.

  • by harold_c,

    harold_c harold_c Dec 26, 2011 1:55 PM in response to Motionworks
    Level 1 (0 points)
    Dec 26, 2011 1:55 PM in response to Motionworks

    I finally encountered this problem with my 24" ACD today after 2 years of trouble free usage. I was using the MacBook Pro seperately and then came to plug the monitor back in and it started happening.

     

    I briefly read about the RF interference and seperated the display port cable from the USB hard drive cable and it has gone away! No need to wrap the cable, just make sure it's not running along anything that carries power, like a USB HD.

     

    HTH.

  • by AtomMan,

    AtomMan AtomMan Jan 8, 2012 5:56 PM in response to Motionworks
    Level 1 (0 points)
    Jan 8, 2012 5:56 PM in response to Motionworks

    Apple made a firmware updated available for the 24" Cinema Display in early October. I've had the same problem for a couple of years, but after the tech at the Genius Bar ran the update last week, the problem seems to have been resolved. It's an issue with the mini-display port and the cable for the monitor. Go to an Apple Store or call Apple Care (this update is not something that will show up automatically when you run software update).

  • by Hans P,

    Hans P Hans P Jan 14, 2012 12:42 PM in response to Motionworks
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    Jan 14, 2012 12:42 PM in response to Motionworks

    Here's the firmware update.

    Works for thunderbolt macs with 24' LED.

    Just installed it, so far so good

    http://support.apple.com/kb/TS4045?viewlocale=en_US

  • by manny.r,

    manny.r manny.r Mar 2, 2012 10:30 AM in response to Motionworks
    Level 1 (0 points)
    Mar 2, 2012 10:30 AM in response to Motionworks

    it's happening to me WITH TWO DIFFERENT DISPLAYS AND MACBOOK PROs

     

    http://youtu.be/3Aqo24JaZ8U

  • by Hans P,

    Hans P Hans P Mar 2, 2012 12:37 PM in response to manny.r
    Level 1 (0 points)
    Mar 2, 2012 12:37 PM in response to manny.r

    So, get the firmware update

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