does it happen on both battery and plugged in? did you try a different monitor? did you try removing the battery and reinserting? did you try it in safemode? please post the results.
Hi,
Very strange problem, see pictures on imgur: http://imgur.com/a/PRMJ1
I tried disabling either Intel HD Graphics or Nvidia card -- same result, so it seems to be a monitor problem, not a graphics card problem.
Help very appreciated.
On Dell Inspiron 7737 laptop, mid 2014, windows 8.1.

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