White line screen sometimes?

Discussion in 'OS X Mavericks (10.9)' started by Dirtyharrydev, Sep 5, 2013.

  1. Dirtyharrydev, Sep 5, 2013
    Last edited: Sep 5, 2013

    Dirtyharrydev macrumors member

    Aug 5, 2013
    Hi guys,
    I have a little problem, I did buy a Macbook Air mid 2013 11 inch CTO 8GB of ram for like 2 months ago.
    I have only used Mavericks on it so I don't know if it's Mavericks or HW problem.
    I did update from ML to Mavericks.

    Some times like when I open a folder from the dock, I use "Grind" as view option.
    I can get a little white line at the screen, the line do pop-up at the place there the folder shows but it disappear right away.
    It's not on the hardware it looks like that the line is in the software / Video.

    I did test Apples HW Diagnostic and it do not show any kind of error codes so I guess that it's not a HW problem?

    Can it bee because of that I did update from ML to Mavericks and that I did not do a clean install? Or is it simply a bug in Mavericks?

    I know that I can install ML and try, but the recover partion is Mavericks and it 'll take time to re-install ML so I wanted to ask you first.

    So what do you think?

    Edit: I have tried PRAM reset now, option+cmd+p+r in startup.
    But still I'm wondering what you think, is it a HW error?
    And I don't know if it did fix the problem or not.
  2. nyolc8 macrumors regular

    Jul 20, 2012
    if the line is on a screenshot too, then it's 99.99999% software problem.
  3. Dirtyharrydev thread starter macrumors member

    Aug 5, 2013
    The line is not all over the screen, it's just on the spot where the grind from the folder was.

    It popups the. Disappers when the folder goes down.


    Ok, but it goes so fast so I never gets the chance to take a screenshot.

    It have happend 3-5 times in two month so.

    Is cmd+shift+3 for the hole screen right?
  4. w0lf macrumors 65816


    Feb 16, 2013
    Yes it is.
  5. Dirtyharrydev thread starter macrumors member

    Aug 5, 2013
    I have downgraded to ML, pram and smc reset and now It seems that the problem is gone.

    I guess that it was a bugg
  6. Dirtyharrydev thread starter macrumors member

    Aug 5, 2013
    Insted of white line the screen are lagging some times in ml.

    According to console it's something with the dock img thing.

    So yes its a bugg
  7. mynameis321 macrumors member

    Oct 15, 2013
    I'm having this problem with my 2 day fresh out the box 2013 13" Air, I've just noticed it when I swipe from a full screen app to the left. I don't know what grind is, and i'm not on Mavericks

    Is this a hardware fault?

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