Dell U27HM flickering/quarter image/black with smeared colors

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  • cjard
    Member
    • May 2014
    • 14
    • US
    #1

    Dell U27HM flickering/quarter image/black with smeared colors

    Hi all

    Wondering if I could get some insight on a Dell U27HM. First turned it on and the image was completely black. I later realised that if I dragged a window from one monitor to (the broken) other one then smeared colors would appear on the bottom 75% of the screen. After being on for several hours the top part of the screen started flickering showing an image (I have a video of this) and then suddenly the image appeared albeit rather fuzzy in the bottom 75% - image attached - and some hour later it now appears normal

    I do have two of these monitors so a compare/swap diagnosis would be possible, just wondering if anyone has any ideas where to start?
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