I have tried to restart my computer, but it is still there. Usually a green line would suggest there is an issue with the laptop ribbon cable or display adapter. ... if you only get lines on the laptop display and not the external monitor you can rule out the graphics card/memory. Any ideas? I was connecting my laptop to a Smart TV Screen when a horizontal green line appeared on my laptop screen. The Line is at the exact locaton, the top line of the Download Bar. To start give the screen a slight twist. Above is the screen shot of where the line located at. And when i do a print screen, it does not appear on the image. Question laptop screen problem: Laptop Tech Support: 0: May 10, 2020: Solved! I have a HP 250 G5 laptop and a single, thin, green, horizontal line has appeared across the middle of the screen. This appear after I download something with Google Chroom, which Later I shut down the PC directly without Closing that Download Bar at the bottom. The screen is also way dimmer than before. At that point start wiggling the display, move it forward and backwards, see if the lines appear/disappear. If there are vertical or horizontal lines on the screen it could mean that the refresh rate on your display needs to be changed. No prior accident in my laptop happened. Check the video cables. Again much like UDPixel, it has features for both detecting and fixing stuck pixels on your laptop screen. Not too hard to break the screen. Horizontal lines on the screen that show up even during POST or when the logo (HP) appears, could mean a defective LCD. Once my computer loads and i can get to the screen where I type in my password it then freezes. My notebook is relatively new, i bought it a few months ago, and it … If this is the case then you may need to request an RMA. LCD/LED Monitor: 1. So I bought a new screen and the problem seemed to be fixed. However, if you do see vertical lines on your laptop’s screen while you are in its BIOS, the problem … NOTE: The secondary screen (over VGA) works fine, so it's not a GPU problem. Sometimes there is a loose connection and this is the result. Try it with an external monitor to rule out the video card. I rarely see horizontal. This problem is caused by either a faulty graphics card or a loose video cable. I'm here to help you with your problem. On a white background the line is hardly noticeable but any other colour and its visible. yesterday, a fix horizontal green light has sudenly appeared on the screen of my HP notebook. By clicking on the Fix My Screen button, the website will display a fuzzy graphic on the screen that looks like moving static. The problem could be behind the screen … This could also be indicator of an issue with the panel of the display. I am looking for the cheapest way of fixing this (if possible) without replacing the actual screen. Since your laptop’s BIOS is technically not a part of its Operating System, if the problem is software-related, you will not see any vertical lines on your laptop’s screen while you are in the BIOS. Thus, resulting that line to appear on the screen. Leave this to run for … Horizontal lines appeared over the screen making everything pretty much unreadable. Horizontal lines on laptop screen Vertical or horizontal lines running across the screen are very annoying, and they can make the screen unreadable.