Computer monitors, like all components of a computer system, depending on several possible factors: computer input, monitor settings, and the performance of the monitor itself. If you see vertical lines on the screen, it may be caused by one or more of these factors. Sometimes the solution is straightforward, other times fixing vertical lines requires some troubleshooting.
What causes pink and green lines on the Windows screen?
Horizontal or vertical lines on your computer screen can be caused by a variety of problems, from outdated video card drivers to improper video cable connections and faulty ribbon cables. You can go into the BIOS settings to determine if this is a software or hardware problem.