I have this problem with my Dell Laptop that when I enable the graphic driver it starts showing pixels of line of colors. I attached a photo of my screen to see what happens.
Untitled.png 636.79KB 0 downloads
I have recently changed the graphic chip. when I disable the graphic driver it stops. but I saw that on boot screen there are some noise too. I haven't connected it to an external monitor.
thanks for your help in advance.