Early 2011 MacBook Pro 13" external screen problems

Discussion in 'MacBook Pro' started by Pavia, Apr 16, 2011.

  1. Pavia macrumors regular

    Joined:
    Jan 22, 2010
    #1
    Hey guys.

    So I received my MacBook Pro 13" a few days ago.
    I started using my external monitor, because I wanted to watch some movies.
    I am currently experiencing some strange problems.
    Sometimes, the screen flicks. Sometimes it makes small grey dots around the screen. And sometimes, it even turns off the monitor for a second.
    Also, I run my MacBook Pro in clampshell mode, and sometimes when I wake it up, it goes to sleep right after entering password.

    Here's a video. I didn't touch anything except my iPhone during this one minute clip.
    http://www.youtube.com/watch?v=2-Z-86cEiT8

    Here is a clip of the external monitor, when there's a dark background:
    http://www.youtube.com/watch?v=gS96ZdUcarA

    I am using the following items:
    Mini display port to HDMI cable (Black one, unaware of the brand)
    HDMI to HDMI cable (1M)
    LG Flatron W2361V monitor (Set to 1080p)
    All of the cables are firmly plugged in.

    The monitor turned off and on 4 times while writing this. As well as several flicks.
     
  2. chituan macrumors newbie

    Joined:
    Oct 5, 2008
    #2
    I got exactly the same problem with my MBP 13 2011 and LG E2260V. I used to use mini-display port to display port adaptor and display port to DVI cable. The problem is fixed by using mini-display port to DVI adaptor and single link DVI to DVI cable.
    Definitely problem with Mac and thunderbolt port since both methods work fine under window 7.
     
  3. Pavia thread starter macrumors regular

    Joined:
    Jan 22, 2010
    #3
    Mine's working fine again, no flickering, no black outs... Strange!
     
  4. FOX160 macrumors regular

    Joined:
    Mar 2, 2011
    #4
    This has been reported before. I believe there is an software update
    on the Apple web site to cure this problem.
     

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