What is the reason for the indirect black screen of the computer?

There is a problem with the hardware you are connected to, such as audio, headphones, USB flash drive, etc., and if you can't read it all of a sudden, the screen will go black

CPU fan to see if it's bad.

1. If the screen is black when running a specific program, please try to uninstall the program and reinstall it, or install it in a different version.

2. Enter the safe mode, and confirm whether there is a black screen in the safe mode? If the security mode is normal, it is usually caused by software conflicts, please check whether there are any recent system optimizations and software installation operations, and you can uninstall the recently installed updates and program software through [Control Panel] - [Programs and Functions].

4. Check whether the computer has been installed with memory or other hardware? If so, please remove the additional memory and other hardware before turning on the computer to confirm.

5. If it still doesn't work, it is recommended to back up the data and try to restore or reinstall the system.

6. If you still can't solve the problem through the above methods, please bring the machine to the service center for testing.

First of all, we can try to restart the computer, after trying to restart to no avail, we can check whether the data cable connected to the computer host is plugged in and rebooted to no avail, we know that there is a problem with the computer, it is determined by both hardware or software, the screen flickering, it may be due to the graphics card or the display screen is damaged, the next step is to teach you to distinguish between the two situations. The first thing to teach you is the self-repair method of the software, right-click "This PC", open the task management to find the graphics card, detect the driver, use the driver software to detect and update.

1. Viruses in the computer.

If the computer has a short purchase period and you can hear the sound of the fan turning when you turn it on, you can see the English letters that detect the computer hardware on the screen during the boot process, and the black screen will be black when it is booted to the system desktop, which is generally caused by viruses in the computer.

Solution: Redo the system directly to repair, if there is important digital data saved in the C drive or desktop, you can export it through Win PE.

2. Memory failure.

If in the process of booting, you can hear the computer fan turning, and the indicator light flashes normally, but you just can't enter the system, then it may be that the memory is faulty, and when the finger side of the memory card is oxidized, dusty, loose, incompatible, etc., it will cause the computer to fail to boot normally or the screen will be black.

Solution: You can use an eraser, brush, hair dryer, etc., to clean or deoxidize the laptop, and then reinstall it again, and the computer can return to normal.

Third, the problem of wiring.

This kind of failure rarely occurs, you must know that the display screen of the laptop is separated from the body part, in order to make it easy to carry, most laptops are folded style, if there is a problem with the cable connecting the display and the motherboard, then it will cause the laptop to be black when the display is turned on.

However, to make one thing clear, this kind of black screen refers to the screen without any display, and the black screen after booting on is two different concepts.

Solution: Generally, this kind of fault occurs, individual users are unable to solve it by themselves, if the laptop is in the after-sales warranty period, it is recommended to go to the after-sales maintenance point for maintenance.

Digression: Under normal circumstances, the most common reasons for the black screen of a laptop are those reasons. However, it is important to emphasize here that laptops are made up of multiple parts, each of which has a corresponding wiring connection, and if you want to determine the problem yourself, you need to know a basic order.

The laptop's power supply is provided by a matching transformer, which is connected to the motherboard and then from the motherboard to other hardware.

The approximate order is the power supply motherboard display, while the laptop has no screen display after it is turned on, which also follows this order. The computer does not power on after pressing the power button, which is a situation; After pressing the power supply, the motherboard fan is powered on, but the display does not light up, which is the second case; After pressing the power supply, the computer fan rotates, the indicator flashes normally, and the display screen is bright, but it finally stays in the black screen state, which is the third situation, only by "the laptop boots on the black screen and no display", it is difficult to directly judge the problem.

When the laptop is in use, there will be an indirect black screen, which is caused by the failure of the system itself, so it is best to detect it and reinstall the system in time at this time, so as to achieve a more stable and smooth effective use.

Black screen caused by broken laptop hardware: The most common and critical hardware that can cause a black screen is the power supply, LCD monitor, memory module, hard disk, and motherboard. First of all, check the power supply to see if the laptop battery has power and whether the power plug is plugged in, this only needs to see if the power indicator is on, if there is no external power supply, plug it in with an external power supply first.

,This situation occurs on the laptop,Mainly because you use the cycle for a long time,And often do not shut down,You should shut down properly,Or use this sleep state,So that you can avoid this phenomenon,And,It is necessary to kill viruses regularly。

If the laptop has an intermittent black screen, it may be that the graphics card or power supply is broken, or the graphics card driver needs to be upgraded, so it is recommended that you take it to the notebook after-sales department for testing and repair.

This is because you set it to hibernate, and if you don't use it, it will automatically go into hibernation.

It's likely that something is wrong with the system!

It is the standby of the laptop you set, such as 20 minutes out of ten, it will automatically go black, if you want to modify, click on the battery has option, there are instructions in town. How long does it take for your computer to turn black.

1. First, check the connection line between the computer and the monitor.

Check the interface between the cable and the host graphics card, whether it is plugged in tightly, whether there is a loose hall, and then check the interface of the cable and the display, whether it is plugged in tightly, and if possible, you can replace the cable to test whether the interface of the cable is worn and loose, resulting in intermittent black screen.

2. Check the adapter.

Some computers use VGA and other adapters, you can use a fan to blow the adapter, whether it is because the adapter has dust that causes bad contact and a black screen, and then consider whether the adapter is compatible with the computer graphics card.

3. Switch the display.

If you have two monitors at hand, you can try to change one monitor to see if it is caused by a bad screen on the monitor screen, or whether it is a problem with the monitor that causes the intermittent black screen.

4. Detect the graphics card.

Open the case, if your computer is chained with integrated graphics, this step can be ignored, because the integrated graphics card is basically not good or bad.

If it is a discrete graphics card, unplug the graphics card, wipe the gold finger with toilet paper and then plug it in, and determine whether it is a black screen caused by poor contact of the graphics card by reinserting and unplugging the graphics card.

5. Graphics card switching.

Check whether the computer has dual graphics cards, if the computer has both integrated graphics card and discrete graphics card, unplug the discrete graphics card, connect the integrated graphics card, and determine whether it is due to the intermittent black screen of the computer caused by the damage of the discrete graphics card.