DanRyb

Q: 24" LED Display with 2011 15" MPB

Hey all,

I've had this 24" LED Cinema Display since it came out and have been using it with a 2010 MBP until now - I upgraded to a 2011 15" MPD (2.3 Core i7 with high-rest matte display) and now with this new MPD, I intermittently get the 24" LED display turning all black before going back to showing my display. It's happening pretty often. Is anyone else experiencing anything similar?

MacBook Pro, Mac OS X (10.6.6)

Posted on Feb 26, 2011 1:01 PM

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Q: 24" LED Display with 2011 15" MPB

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  • by Zebs,

    Zebs Zebs Mar 22, 2011 8:53 AM in response to DanRyb
    Level 1 (0 points)
    Mar 22, 2011 8:53 AM in response to DanRyb
    I can confirm this is still happening after 10.6.7!
    I should say it happens a lot less often. For me it was constant blackouts, like 5 in a row every 20 min, and it would cause the fan on my display to go extremely fast for a second; and now its much less, like one every hour. I will call Apple Care to make sure they know the issue is still present. At least or me it did get a little better; but it is by no means solved!
  • by TJCacher,

    TJCacher TJCacher Mar 22, 2011 10:33 AM in response to DanRyb
    Level 1 (5 points)
    Mar 22, 2011 10:33 AM in response to DanRyb
    Same as most others - applied 10.6.7 to my 17" early 2011 MBP, and still have the jittery behavior several times per minute on my 24" ACD. Seems like it doesn't really get going until after the monitor warms up.

    Still works just fine with my early 2009 17" MBP, running 10.6.7 as well.
  • by [LiQuID],

    [LiQuID] [LiQuID] Mar 22, 2011 3:25 PM in response to DanRyb
    Level 1 (0 points)
    Mar 22, 2011 3:25 PM in response to DanRyb
    10.6.7 had no effect for me, same blackouts continue every few min.
  • by leesilberkleit,

    leesilberkleit leesilberkleit Mar 22, 2011 10:25 PM in response to DanRyb
    Level 1 (0 points)
    Mar 22, 2011 10:25 PM in response to DanRyb
    !0.6.7 MBP 2011 15 2.0

    Not many blackouts today but all of the sudden the screen became a mosaic of all the open windows. Unplugging and then plugging Thuderbolt connector fixed it. Hope Apple is taking notice of this.......
  • by manomendip,

    manomendip manomendip Mar 23, 2011 1:18 AM in response to leesilberkleit
    Level 1 (0 points)
    Mar 23, 2011 1:18 AM in response to leesilberkleit
    Just to add to thread
    I have same issue
    Not fixed with 10.6.7 update
    flickering very rare though - 3 times per day
    blackout likewise rare 5 times per day
    neither lasts more than a couple of seconds
    so perhaps 30 secs of interruption per day.
    Would prefer it to be fixed though!
  • by Os,

    Os Os Mar 23, 2011 1:57 AM in response to manomendip
    Level 1 (15 points)
    Mar 23, 2011 1:57 AM in response to manomendip
    Blackouts not fixed by 10.6.7 for me.
  • by greubeuld,

    greubeuld greubeuld Mar 23, 2011 2:13 AM in response to DanRyb
    Level 1 (0 points)
    Mar 23, 2011 2:13 AM in response to DanRyb
    Hi,

    I used to have a very similar issue with my late 2008 unibody macbook (first model with displayport coincidentally).

    After a lots of months of tinkering, it appeared (and this is just guesswork) that the external display refresh rate was not properly detected, therefore the screen was trying to correct but would sometimes be out of sync.

    There is an utility that allows to specify an arbitrary setting (SwitchResX) that fixed this for me.

    Not saying this is the same issue, just thinking this is worth checking. Sorry if this been said before.

    (NB the problem went away with later versions of Leopard ans an update to the adapter (came back after an OS update (maybe 10.6.3 ?))
  • by El Presidente,

    El Presidente El Presidente Mar 23, 2011 3:48 AM in response to DanRyb
    Level 2 (415 points)
    Mar 23, 2011 3:48 AM in response to DanRyb
    I hope Apple realizes that this is still an issue and haven't checked it off as fixed...cos it's not.
  • by WylyQuimby,

    WylyQuimby WylyQuimby Mar 23, 2011 2:06 PM in response to DanRyb
    Level 1 (5 points)
    Mar 23, 2011 2:06 PM in response to DanRyb
    The 10.6.7 update seems to have improved things for me. I got one flicker this morning, but otherwise smooth sailing. Almost there anyway.
  • by jacblinde,

    jacblinde jacblinde Mar 23, 2011 2:36 PM in response to DanRyb
    Level 1 (0 points)
    Mar 23, 2011 2:36 PM in response to DanRyb
    Hi,

    I received my new MBP 13" i7 five days ago. My previous computer was a 2008 MBP 15" coupled with an 24" ACD, and I had the black screen irregularly, approximatively three or four times per day.

    But now, with the early 2011 MBP, things are coming to be crazy: the black blink occurred often, until two times per second! This morning, the screen became a mosaic, with the dock on the upper side of the screen. I made a screen copy and this copy was normal, i.e. the problem is in the display and not in the macbook. Just after, I unplugged the display port and replugged it: and all was right during several hours… Another curious thing: when I unplug the power cord, my MBP falls in a sleepy way…

    I've had a contact with AppleCare, but they have no idea.
  • by RTJjr,

    RTJjr RTJjr Mar 23, 2011 5:52 PM in response to WylyQuimby
    Level 1 (0 points)
    Mar 23, 2011 5:52 PM in response to WylyQuimby
    The 10.6.7 update also seems to have improved things for me.

    A few closely spaced brief blackouts and one flicker this morning just after I woke MBP from sleep. Nothing more thereafter rest of the day despite a variety of sometimes CPU demanding tasks.
  • by Kyle O'Bannon,

    Kyle O'Bannon Kyle O'Bannon Mar 23, 2011 9:42 PM in response to WylyQuimby
    Level 1 (25 points)
    Mar 23, 2011 9:42 PM in response to WylyQuimby
    Yep, I agree. I was initially worried once I noticed a blackout and a couple graphical glitches within an hour after installing the 10.6.7 update. It has been a couple days now and I haven't noticed any issues. So, at least Apple is on the right track.
  • by Kyle O'Bannon,

    Kyle O'Bannon Kyle O'Bannon Mar 23, 2011 10:00 PM in response to Kyle O'Bannon
    Level 1 (25 points)
    Mar 23, 2011 10:00 PM in response to Kyle O'Bannon
    Mother Hubbard! I must've jinxed myself. I just noticed the familiar graphical glitch. Still, it's a much less frequent occurrence. So, there's that.
  • by leesilberkleit,

    leesilberkleit leesilberkleit Mar 24, 2011 10:42 AM in response to DanRyb
    Level 1 (0 points)
    Mar 24, 2011 10:42 AM in response to DanRyb
    Yikes too!!

    This morning had like 6 blackout blinks in less than 10 minutes. Last night had none in two hours.....

    Then I though maybe the display connector was loose.... pulled it plugged it back in and bath screens were black (backlight was on, on the MBP)> Had to do a power on reset to get running again......

    This morning I was running Chrome to check it out. I will try with no chrome for a while (may matter.... might not).....

    24" is under AC and if this doesn't get better in a reasonable time Apple and I will have to have a serious talk.......
  • by DanRyb,

    DanRyb DanRyb Mar 24, 2011 11:39 AM in response to leesilberkleit
    Level 1 (10 points)
    Mar 24, 2011 11:39 AM in response to leesilberkleit
    Add me back to the list! The night I applied the 10.6.7 update, I didn't have ANY flickering issues with my ACD. The very next day, and ever since, I still get them, pretty frequently still. Hoping Apple still sees this thread and realizes it is not resolved.
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