Randomly occuring black dots/bars in screen - Lenovo laptop

  1.    08 Nov 2016 #1

    Randomly occuring black dots/bars in screen - Lenovo laptop

    Dear Tenforums users,

    I have recently encountered problems or rather peculiarities with my relatively new Lenovo laptop;
    whenever I'm working on it and switch to another tab, there is a chance of random black stripes and dots occuring in the screen. Not (yet) to the extend that I cannot work on it and when I switch tabs again they are gone from the previous tab.

    Screenshots of the problem:

    Click image for larger version. 

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    Click image for larger version. 

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    I am just wondering what might be the cause and if I should be worrying myself about future defects. (especially since my warranty is till february 2017)

    Thank you all for your time!


      My ComputerSystem Spec

  2.    15 Nov 2016 #2

    Bump. Do I need to provide more information/data?

    I am really anxious about this occurence... I really hope that somebody knows more about this kind of things and can help me in this matter.
      My ComputerSystem Spec


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