I had my laptop sitting on my couch last week and long story short, it fell from couch to the floor. I didnt think anything about it and just left it alone. The following night I turned on my laptop and it had different shades of red vertical lines all over the screen, couldnt even see the windows logo or login screen. The next day I powered it on and it came on but runs like it has lag and the colors are off (they look like a negative almost). I need help knowing what I can do or how much it will cost to fix it. I really don't want a new computer. Also when I plug my computer into my tv with an HDMI cord the screen looks fine on the tv but still messed up on the laptop screen! Any advice?
First thing to do is reseat the cable that runs between the mainboard and display panel. If that doesn't fix the problem, it's likely the screen needs to be replaced - that will run about $200 for the part plus labor to install it.