Windows 10: cannot extend and duplicate to second monitor & cant adjust brightness

  1.    01 Aug 2015 #1

    cannot extend and duplicate to second monitor & cant adjust brightness


    hi everyone

    when i press win+p then click duplicate or extend it doesn't work. i tried connecting my laptop to my samsung tv via hdmi cable, it does not detect my laptop. and also i cannot adjust the brightness of my laptop. your help will be very much appreciated.
      My ComputerSystem Spec

  2.    01 Aug 2015 #2

    This might be caused by faulty cable or you are not using the correct connection setting on your TV.
      My ComputerSystem Spec


 

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