I have dell inspiron 3521 i3 core. I have problem after startup the screen will appear in line network for 1 to 2 minutes. what will be the possible causes for this problem and what will be the possible solution. Please help me
Individual or groups of pixels or a visible line of pixels appears either vertically or horizontally. These dead pixels or lines will not be caused by a video card. The simple test, hook up an external monitor to see if the lines or pixels appear there also. If the lines or pixels do not appear on an external monitor, then the LCD screen most likely bad. Occasionally, dead pixels and lines can be caused by a bad LCD screen ribbon cable. If the dead pixels or lines go away or change positions dependent on the angle of the screen, it could be a damaged LCD screen ribbon cable.