About the boot white screen that I said last time

Regarding the situation I didn't know last time, there are several cases of white screen, and I will analyze it for you. If it is a host problem that causes a white screen, there will be two situations: one is the white screen when the boot progress is displayed normally, and the other is the white screen when the graphics card or connection cable is sent to the display, but the display does not receive it or the signal is incomplete, resulting in a white screen (but this situation almost does not occur, I have not encountered it, but I have heard others mention it). The other is the monitor itself, and this possibility is relatively high, you can use the following steps to determine if it is a problem with the monitor.

The computer doesn't move,Turn on the monitor directly,See if it's a display of no signal or something or a white screen as soon as it's turned on,If it's a white screen, you can be sure that it's definitely your monitor's problem,Otherwise, it's good (because the display driver board sometimes causes a white screen, but the possibility is relatively small)。 Otherwise, you have a more direct way to directly change the machine to the TV to try, or find someone else to borrow one to try, and the more direct is to call the computer repairer to diagnose. ps ：

Don't ask me why I'm so clear, I'm not going to tell you I'm a computer fixer.

The white screen is no signal, and the motherboard and the screen are connected by a screen cable. To confirm that the screen cable is good, the next step is to confirm whether the circuit of the screen and the motherboard is aging electronic parts.

The white screen when turned on, or the people who use the computer understand the meaning of this "white screen", but there are also a few people who use the computer who do not know enough about the white screen. Is it the quality of the screen or the graphics card is damaged? Will it occur if the LCD screen is not in good contact with the motherboard cable frequently?

Why do some laptops occasionally have white screens? How can we determine the meaning of the white screen hand?

With these questions, the author will give a detailed answer to the meaning of the white screen and the ** that produces the white screen. First of all, the white screen is our term in the maintenance industry, the boot light can be lit, the screen is blank and the boot screen is not displayed, but the sound of entering windows can be heard.

In the process of use, you need to know how to count the white screen, whether the white screen is connected to the graphics card, as long as the computer and the PC monitor are connected to the boot to see if the display of the monitor is normal (generally there is an external PC monitor port behind the computer). If the PC monitor display and the laptop screen display are both white, then the possibility of damage to the graphics card is relatively high. The graphics card of the laptop is divided into two sets of synchronous signal output, one for the LCD screen and the other for the display port, so the best test method for whether it is connected to the graphics card is to connect it to the PC monitor.

Today, the customer sent the Lenovo Zhaoyang (Legend) S300 for repair, and its faulty boot white screen. According to the customer's understanding, the screen will flicker occasionally, and when the flickering is bad, the computer flashes when it is restarted, and it is excluded, and it is not too much to affect the operation, so it has been ignored. But one day, when I turned on the computer again, the screen was blank, and I only heard the sound of entering Windows, and I wondered what the problem was.