What should I do if the computer closes the lid and then opens it and the screen keeps black

First of all, if your laptop turns off the screen and turns on the hail screen is black, then you can try the following solutions: 1. Adjust the power state of the laptop by pressing the power button on the laptop, try whether the light is changing, if there is so, then you may just enter the laptop into sleep mode, if there is no improvement, we can continue to set up the troubleshooting; 2. Check whether the monitor on the laptop is turned off by you, you can press the button to display the "brightness" on the source chuntong device to check it; 3. Check again whether the graphics card or the display wheel indicator accepts the power supply; 4. Switch to ** station mode, which allows you to turn on the power and still ensure that the system does not lose drive; 5. If there is a possibility of blackboard or driver crash, you need to permanently change the display to VGA mode to update and the driver of the laptop to ensure that the laptop works normally; 6. If none of the above methods work, you may need to replace the power supply or update the monitor so that the laptop can work normally.

It may be a power-off protection, leave it for a while and then turn it on, or pull out the battery and install it again.

Summary. There is a possibility that the problem is caused by the laptop's sleep mode. You can try pressing the power button to boot the laptop and wait for a while to see if it gets back to normal.

If the black screen problem persists, it may be due to an abnormality in the operating system or a hardware failure. It's a good idea to contact professional technical support so they can check and fix the issue.

It is possible that the problem is caused by the laptop's sleep mode. You can try pressing the power button to boot the laptop and wait a few touches before the laptop to see if it gets back to normal. If the black screen problem persists, it may be due to an abnormality in the operating system or a hardware failure.

It's a good idea to contact professional technical support so they can check and fix the issue.

I'm still a little confused, can you be more detailed?

It could be a problem caused by a laptop's sleep pattern. Try pressing the power button to start the notebook and wait for a while to see if it gets back to normal. If the problem persists, it may be an abnormality in the operating system or a hardware failure.

It is recommended to contact professional technical support to check and sell the model restoration.

Hello, dear, I am a life expert uncle, I am happy to answer for you, thank you for your patience and patience, you consulted the pen mu missing notebook after the computer screen is turned off is a black screen to solve the basic method: 1, please try to press the combination of function keys to increase the screen brightness, turn on and off the switch display, to avoid the screen brightness is too low or the computer black screen is not displayed because the screen has been turned off. 2. Press the F2 button when you boot up and enter the BIOS interface to check if it is displayed normally.

1) If the BIOS interface does not display the black screen, it may be a computer hardware problem, please bring the machine to the computer repair service center for testing. (2) If the BIOS interface is displayed normally, please try to restore the default value by pressing the F9 key in the BIOS interface, then press F10 to save and exit, and restart the computer; If it does not work, it may be caused by a system or driver software problem, try to restore or reinstall the system after backing up the data to solve the problem. 3. Connect the external monitor of the notebook, press the key combination to switch the display; (1) If the external monitor is displayed normally, please uninstall the graphics card driver and reinstall it; And make sure you have installed any updates or other programs in the near future?

If so, please uninstall the installed updates and recently installed program software through [Control Panel] - [Programs and Functions]. (2) If the external monitor is not displayed, or you do not have the relevant display equipment for testing, it is recommended that you take the machine to the computer service center for testing and confirmation.