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  • 90. Re: screen flicker using external ACD on new 15" MBP
    P-Akron Level 1 Level 1 (0 points)

    I have a 13" MacBook Pro and my external monitor would constantly flicker on and off while I was working. At first, I believed it was a problem with the input jack on the Macbook, so after much fuss with that, I decided there was another issue.

     

    Eventually, this is what solved my problem - I simply switched the refresh rate on the external monitor from 75 hrtz to 60 and the problem was instantly fixed!

     

    Hope this helps!

  • 91. Re: screen flicker using external ACD on new 15" MBP
    odok Level 1 Level 1 (0 points)

    Exact same symptoms here... New MBA and a philips tv via thunderbolt-hdmi adapter

    I get intermittent flicjer followed every few times by negative green distortion

     

    Ive tried changing refresh rate to 60hz, output from ntsc to PAL

     

    Any thoughts?? Could it be proximity of the laptop, tv and time capsule?

     

    "Same here.

    macbook pro 13, i7, thunderbolt.

    External tv: Philips 32 tv connected through thunderbolt/hdmi is flickering, also screen turns negative-green then automatically returns to normal. Every more-less 15 mins.

    Must mention that Dell external monitor works absolutely perfect.

    I am already updated to the newest fixes through software update.

    hopefully we get soon a fix to this.

    greeky cheers"

  • 92. Re: screen flicker using external ACD on new 15" MBP
    Clovexs Level 1 Level 1 (0 points)

    Sorry to drag up an old topic.

    I'm experiencing this exact problem, and having read through many of the treads I still havn't found a solution.

    If any of you managed to get your problem sorted could you please let me know how?

    I'd really, really appreciate it!!

  • 93. Re: screen flicker using external ACD on new 15" MBP
    christos_gr Level 1 Level 1 (0 points)

    hello Clovexs. What is your operating system (mac os x which version)?

  • 94. Re: screen flicker using external ACD on new 15" MBP
    Clovexs Level 1 Level 1 (0 points)

    Thanks for the quick reply,

    I'm using a late 2011 13" macbook pro, 2.4 GHz, with OS 10.9.2 and a 20" ACD

  • 95. Re: screen flicker using external ACD on new 15" MBP
    christos_gr Level 1 Level 1 (0 points)

    10.9.2 and is still flickering? OMG..

     

    Try changing the refresh rate. Go to apple > system prefrences > displays > select the ACD display and from here try to work either on lower Hz refresh rate or try different values at the ACD resolution.

     

    Where you using the same cable, ACD, mbp before the filckerings came up? Might be a damaged cable or adaptor?

     

    Sometimes before the major update on os x HDMI option, the HDMI transfered audio and video (instead of only video now). Go to system prefrences and check the audio source (and output) if they are at their normal settings while the ACD is connected.

  • 96. Re: screen flicker using external ACD on new 15" MBP
    jisaac1 Level 1 Level 1 (0 points)

    I tried everything but ultimately, it was my video card that went. Gave me a good excuse to jump to the MBPr.

  • 97. Re: screen flicker using external ACD on new 15" MBP
    Clovexs Level 1 Level 1 (0 points)

    The flickering has seemed to die down almost completely, so long as I connect and turn on the MBP and ACD in a certain sequence. So hopefully it keeps working this way, not ideal but at least its usable!!

     

    Thanks for your help and quick responses guys!!

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