mohsman

Q: 27" display turns black, back to Mac, flickers, then back to display

I'm working on 27" display. It randomly goes blank, tool bar and window switches to Mac for a few seconds. It flickers off (blue) and on several times, then things switch back to display. Sometimes display resolution has changed, sometimes not. No pattern I can discern. Did it twice while typing this. May not do it for another 30 minutes or so

MacBook Pro15", Mac OS X (10.6.5)

Posted on Feb 25, 2011 7:21 AM

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Q: 27" display turns black, back to Mac, flickers, then back to display

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  • by mjz12956,

    mjz12956 mjz12956 Mar 3, 2011 9:23 AM in response to mohsman
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    Mar 3, 2011 9:23 AM in response to mohsman
    Having the exact issue. Periodically the screen goes blank for a second or two and then returns back to normal. Any idea what causes this?? Happened several time this morning, but not all of yesterday.
  • by cdvanars,

    cdvanars cdvanars Mar 5, 2011 11:31 AM in response to mohsman
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    Mar 5, 2011 11:31 AM in response to mohsman
    I'm having the same issue. I just installed a Radeon 5870 card hooked to two 27" LED displays and I've found that the display that has the most video activity (say watching a movie, or playing a game) will flicker on and off, show lines, and then hang up the entire computer at random. This same thing happens when booted into Windows also, which makes me think it is the card.

    Any ideas?
  • by nfeddema,

    nfeddema nfeddema May 20, 2011 10:02 AM in response to cdvanars
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    May 20, 2011 10:02 AM in response to cdvanars

    Having the same problem with a brand new mac and the thunderbolt port.  Apple seems to be ignoring this and hoping it will go away -_-

  • by mshoe,

    mshoe mshoe Jul 6, 2011 7:50 PM in response to mohsman
    Level 1 (0 points)
    Jul 6, 2011 7:50 PM in response to mohsman

    Same problem here. Brand new 2011 MacBookPro 17" and the 27" Cinema Display with the display port. The display goes black for about .5 secs, then comes back on. It is sporadic but happens multiple (30) times per hour.

     

    The display worked fine with my old MBP 2010 with display port, so obviously this is a Thunderbolt issue.

     

    Firmware update please?!