Anyone get an occasional "flicker" with their 24" LED Cinema Display?

Discussion in 'Mac Accessories' started by WilliamG, Mar 19, 2009.

  1. WilliamG macrumors G3

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    #1
    I can't explain it, except that once in a while, perhaps once a day, I get a very slight flicker from my LED Display when connected to my MacBook Pro. It's not a colour shift like some others have reported, but rather literally a quick flicker like the screen loses power for a sec but only for literally a millisecond...

    Don't suppose anyone else has noticed this? It's not even really an "issue" in terms of using the screen, but just a bit odd, and hopefully not a sign that it will crap out down the line. :(

    Thanks...
     
  2. Icelandr macrumors newbie

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    Nov 20, 2008
    #2
    Now that you mention it . . .yes. It appears to be a change in brightness, but yes, a flicker and annoying enough to ask apple about it. My cinema display is attached to an alum Macbook, and it seems to me, but I may be wrong, that it happens later in the day, as in after it has been "on" for quite a few hours.

    Love the screen, the flicker not so much
     
  3. WilliamG thread starter macrumors G3

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    #3
    I guess I'm not alone... :(
     
  4. WilliamG thread starter macrumors G3

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    #4
    Any update on this? Mine is flickering more often now... :(
     
  5. janericster macrumors newbie

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    Oct 3, 2007
    #5
    I thought my electricity was going haywire!

    Same problem. Bought my 24" display about 3 months ago...had no problems for those 3 months until this past week. Now the display randomly goes black for a second about 3 times a day or more.

    Checked all my connections and reattached the cables so not sure what's going on.
     
  6. geoffreak macrumors 68020

    geoffreak

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    #6
    If you have a problem, take it in to the Apple store. It's not like they will take away your monitor if it is normal, so why are you waiting?
     
  7. apple-ette macrumors member

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    Jul 29, 2009
    #7
    I also have the same issue. I have taken the display to my local Apple Store. Since there is no way for me to make it flicker / black out at will, I had to leave the display with them for "further testing". Hopefully it misbehave for them like it does for me. :D

    I'll try to remember to post an update on what happens.
     
  8. geoffreak macrumors 68020

    geoffreak

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    #8
    The best thing to do if you can't make something misbehave at will is to take a video of it misbehaving;)
    Even if they can't replicate it to fix the problem, they will at least know there is a problem so they can get you a replacement.
     
  9. WilliamG thread starter macrumors G3

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    #9
    I sort-of gave up caring about it on my end. It only happens once every so often, so I'd have to leave a video camera hooked up 24/7. This screen has been working for 8 months just fine otherwise, so... I've gotten over it. :)
     
  10. apple-ette macrumors member

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    #10
    That was the next thing I was going to try (taking a video of it happening), luckily the Apple Store has replaced my display. :) They did not say what they found to be wrong with it. Hopefully the new one is "perfect".
     
  11. sanPietro98 macrumors 6502a

    sanPietro98

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    #11
    Has the new display experienced the flicker? I'm experiencing the same problem and wondering how to proceed.
     
  12. sanPietro98 macrumors 6502a

    sanPietro98

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    #12
  13. WilliamG thread starter macrumors G3

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    #13
    Our issues seem to be related but not exactly the same. My display flashes only for a milisecond, not half a second.
     
  14. sanPietro98 macrumors 6502a

    sanPietro98

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    #14
    I've gotten both a millisecond "flicker" and also a half-second black-out. They might be varying degrees of the same problem.


    What screen resolution setting are you using when you experience this? (I think) I only get the flicker on the 1920x1200 resolution setting. If I reduce it to something smaller it goes away. So I'm wondering if the graphics card/chip can't always keep up with that resolution.
     
  15. WilliamG thread starter macrumors G3

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    #15
    I always run 1920x1200.
     
  16. sk8mash macrumors 6502a

    sk8mash

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    #16
    I have only had my display less than a week, but I have just reduced the brightness and in the last 5 minutes it has probably flickered about 10 times. Anyone else find this?
     
  17. apple-ette macrumors member

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    Jul 29, 2009
    #17
    I have had the replacement display for almost 2 weeks, and so far so good, it has been perfect, no flickers or going black.
     
  18. benborman macrumors member

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    May 28, 2008
    #18
    I just started noticing a 1/2 second blackout today. My display is a refurb - I've had it barely over a week. If this persists I will be contacting Apple...

    Anyone have any idea why this happens?

    See my system setup in my sig...
     
  19. WilliamG thread starter macrumors G3

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    #19
    Honestly? I'd try to ignore it. Mine's done it since I got it last year, and it does it ever so occasionally to this day.
     
  20. sab150 macrumors regular

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    Jul 9, 2009
    #20
    does anyone else get a buzzing? its freaking louder than my macbook pro.. sounds like a power related issue? my last one diddnt do this.. it does however dye down wen it warms up.. opinions>
     
  21. WilliamG thread starter macrumors G3

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    #21
    That doesn't sound normal to me...
     
  22. sab150 macrumors regular

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    Jul 9, 2009
    #22
    thanks, do you have one? and can you test next time its turned on from cold it doesnt do this?

    it sounds like a constant buzzing (that i got from a cheap dimmer lamp) of electricity goes after about 10mins but super annoying
     
  23. WilliamG thread starter macrumors G3

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    #23
    Oh believe me I've used this screen a ton. I hate the buzzing from all CCFL LCDs, so no, this doesn't make a sound.
     
  24. benborman macrumors member

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    May 28, 2008
    #24
    That's probably good advice. I'd hate to exchange it and end up with a different ACD that has backlight bleed like some users have reported, or uneven color tint. Ugh.

    I think I will ignore this unless it starts happening with greater frequency.
     
  25. WilliamG thread starter macrumors G3

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    #25
    You're making the right move. I've seen a lot of these screens with varying issues. Color tinges (one of mine was greenish), lots of dust under the display etc.
     

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