Anyone who uses a computer or a computer understands the meaning of this "white screen", but there are also a few people who use computers that do not know enough about this white screen. How can a normal computer produce a white screen? Is the quality of the screen or the graphics card damaged? Will it happen if the LCD screen and the motherboard connection line are not contacted frequently? Why do some notebooks occasionally white screen? How can we determine the meaning of the white screen? With these questions, the author will give a detailed answer to the meaning of the white screen and the killer who produced it.
First of all, the white screen is our term in the maintenance industry. The boot lamp can be lit, the screen is blank and the boot screen is not displayed, but the sound of entering WINDOWS can be heard. Everyone needs to know what is considered a white screen and whether the white screen is connected to the graphics card during use. Just connect the computer and the PC monitor to see if the monitor display is normal (generally, there is a port for an external PC monitor at the back of the computer).
If the PC monitor display and the notebook screen [link|https://0gadget.com/laptop-display-is-not-working/|display] are both white, the possibility of damage to the graphics card is higher. The graphics card of the notebook computer is divided into two groups of synchronous signal output, one for the LCD screen and the other for the display port, so the best way to test whether it is connected to the graphics card is to connect the PC monitor.
Today, the customer sent for repairs to Lenovo's LEGEND S300, which failed to turn on the white screen. According to the customer's understanding, the screen will flicker occasionally. When the flicker is severe, the flicker will be eliminated by restarting the computer. I feel that it does not affect the operation so I have not paid attention to it.
But one day when I turned it on again, the screen went blank and I only heard the sound of entering WINDOWS. I suspected that it was the contact problem. reference.