GPU is dying or Monitor (lcd)

This started recently after i moved out my tv (plasma) and i saw diagonal lines on my monitor when i move my head left-right. I have driver issue which chrashes on google chrome but its normal in game.The diagonal lines are box shaped and they are happening in game and on desktop.Googling i saw that it could be bad monitor but when i power up monitor the logo loads normaly without that diagonal lines. I tried vga dvi connector ,tried to change frequency from 60hz to 50hz and no hope. But when i installed the latest amd crimson i lost my 75hz option which my monitor supports. Soo if anyone has idea freely post it.

PS. My brother see's vertical lines but i see diagonal. Weird.

Monitor is asus vw228n.
Gpu r7 250x.

Regards by Robert.
 
Okay i was wrong about my answer UP.... I've tested monitor on Laptop and works fine. I was kinda in hurry ..... Excuse me for that.Now in this pictures you will see that lines:

9zun8m.jpg

That square line.
 


Yes i physically moved the tv out and then i started noticing, but i assume that was before but because of brightness of my tv i couldnt see that before.And that squares that you see are on whole screen.(I was kinda busy soo im slow with answering.