Hello, on my laptop (Dell, Inspiron 5559, i5-6200 U, 8Gb Ram), when I close the lid and open it again the screen stays black or like many pixels and sometimes performs a kind of flashing image of milliseconds and I can not do anything, also when it turns off after being inactive, so I have to force it to turn it off which I do not like but it is the only way and turn on again to be able to use it. Does anyone know what can cause it and how to solve it?
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