How to solve the problem of white line on the laptop screen

A very thin, snow-white line appears on the top of the computer screen. What is wrong? Answer: 1. You can press the del button (the Lenovo laptop presses F2) to enter the bios when the self-test information or the computer brand LOGO appears. Keep this state, and often move the cursor to see if it appears again. If not, heavy Install the graphics card driver. 2. If the above symptoms still occur, it is likely to be a hardware failure. If the computer is used for a long period of time, consider the possibility of screen aging, or the following reasons: First, the screen line is damaged or the contact is not good. Second: The screen itself is damaged. Three: The motherboard has a problem with the power supply to the screen or caused by the soldering of the graphics chip. The above needs to be judged according to the maintenance experience, it is recommended to take over the repair.