Question 1: Why does the laptop screen suddenly go black with only sound? There are many possible reasons for a black screen on a laptop. Below I will tell you from the simple to the more complex that you can judge according to the situation:

1. The pseudo-black screen phenomenon means that the backlight system of the screen is broken. You can use a flashlight to take a picture. Check the screen. If you can vaguely see the image without backlight, this is a pseudo-black screen fault. If possible, you can connect an external monitor to check. The pseudo-black screen LCD is caused by the lamp high-voltage board or the screen cable. The LED problem is Malfunctions in the mainboard signal power supply, screen cables, and screens require detailed inspection before repair.

2. If the sound you are talking about refers to the system music or the sound of the movie you played, it means that the main function of the motherboard is still working. Problems with the screen or screen cables can cause a black screen. You can move it. Try it with the screen cable. To determine whether it is a screen problem, you need an external monitor to assist in the judgment, or most accurately, you need to disassemble and replace the screen cable to test.

3. The graphics card chip is faulty. If you have had a crash, blue screen or blurry screen before, the graphics card chip is most likely to be faulty. This requires professional equipment and technology to repair. 4. You can force shutdown and then try again. If the display shows up and you can enter the system, it may be a simple system problem. If you continue to use it, if it still occurs in the future, it is a hardware failure. Any laptop problems can be solved.

Question 2: The computer has sound but a black screen. Let me talk about a possibility I have seen.

Are you playing larger games or watching high-definition movies, which burn the graphics card?

It may be that the temperature of your graphics card is too high and it automatically stops running to protect the graphics card from being burned out. After a minute or two, the temperature of the graphics card drops and it will work again, and you can see the picture by then.

If the graphics card is not good, don’t turn the effect too high.

Question 3: When pressing the power button on the laptop, there is a black screen but there is sound. What is the problem? Check the screen cable of the laptop. It may be caused by poor screen cable contact. The worst result is that there is a problem with the graphics card. You shut down the computer. Do not turn on the computer immediately for a while. Let it cool down for half an hour and then take a look.

Question 4: Why is the screen black when the laptop is turned on and there is a beeping sound? This beeping sound is usually a problem with the memory module. , you take out the memory stick, wipe the gold finger of the memory stick with glue, and try inserting it into another memory slot. If it doesn't work, try changing to a new memory stick. If it doesn't work, it may not be the memory. If there is any problem with the article, you need to take it to a professional place for testing.

Question 5: Why is the computer screen always black but there is sound? The reasons are as follows:

1. If the monitor is damaged, you can send the monitor to a repair shop for repair. If it is still within the scope of the warranty, call the computer after-sales office for repair.

2. The graphics card should be loose or in poor contact. Press the host interface of the signal cable with your hand, or open the case and re-plug and unplug the graphics card.

Question 6: There is a black screen and an alarm sound after the notebook is turned on. The graphics card and CPU of the notebook do not have high-power independent fans. It is best to go to the after-sales service for your problem. I don’t think it has burned out yet. It is a temperature protection function. The relationship forcibly prevents you from turning on the phone. Today's hardware has a self-protecting temperature. When it reaches that temperature, it is forced to shut down immediately. It is probably a problem with the graphics card. Go to the after-sales service and check it out

Question 7: How to solve the problem of black screen and only sound when playing video in all players of the laptop? Uninstall the graphics card driver of the laptop and try reinstalling it with the original driver, which is the one that came with the laptop when you bought it. Try it. If it doesn't work, ask someone to reinstall the system. It should be caused by something updated or conflicting. Thank you!

Question 8: Why does the computer screen suddenly go black after being used for a long time, but there is sound? What should I do? This situation is generally caused by system software, memory, and hard disk.

1 The computer is accidentally installed with malware, or malicious programs are generated while surfing the Internet. It is recommended to use 360 ??Guard, Kingsoft Guard and other software to clean up the garbage and kill the malware, which may solve the problem. If it doesn't work, reinstalling and restoring the system can solve the problems caused by the software.

2 If you cannot enter the system, you can go to the system selection after booting and press f8 to select the last known correct configuration (which can solve errors caused by incorrect driver installation) and safe mode with network connection (after entering There is a network, and then use 360 ??software to get it), it may be able to be repaired.

3. Click the start menu to run and enter cmd, press Enter, and enter at the command prompt.

for %1 in (%windir%\system32\*.dll) do regsvr32.exe / s %1 and press Enter. Then let him run it to completion, and it should be possible to solve it.

4 Recently, the computer has been infected with viruses, unstable software has been installed, etc. It is recommended to do a full anti-virus, uninstall the software that caused the problem, and reinstall other versions, which may solve the problem. If it still doesn't work, just reinstall the system. ok.

5. There is dust in the memory module inside the computer case. Open the case, remove the memory module, clean the memory gold finger, and put it back again, and it may be ok. (Cqjiangyong summarized that old computers often have such problems) 6. If the computer has been used for a long time and the memory is broken, if you buy parallel-imported memory, or if multiple memories are used together and are incompatible, etc., it is recommended to replace the memory to solve the problem.

7 After using the computer for a long time, the hard disk becomes damaged. Repartitioning and installing the system can repair the logical bad sectors, but if it still does not work, then it is time to replace the hard disk. Changing the hard disk can solve the problem.

It can only be repaired

The following methods are for your reference:

baike.baidu/view/401137

Question 9: Why The computer screen suddenly blacked out and made a harsh sound.

Question 10: My laptop suddenly blacked out when I was using it, but there was sound. The sound was always there but could not be displayed. Generally speaking, it was the graphics card. The problem may be that important files in the graphics card driver are damaged. Therefore, download new driver files, that is, update the graphics card driver. It is recommended to use Driver Life. Driver Wizard can easily mess up your driver; another problem is that you The memory module is loose. The loose memory module will also affect your monitor. Check whether your memory module is plugged in tightly