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Is that on the integrated on discrete GPU when you see those symptoms?

how would i be able to tell?
sorry for the noob question

Another thing is that, when i use the print screen command, the lines aren't visible, it just comes up normally, that's why i've used my phone for the photo. The lines are permanent, they just come and go intermittently
 
how would i be able to tell?
sorry for the noob question

Another thing is that, when i use the print screen command, the lines aren't visible, it just comes up normally, that's why i've used my phone for the photo. The lines are permanent, they just come and go intermittently

most likely a display problem then
 
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