Why does the computer screen go black after closing the lid?

This is because of the power management settings, in order to maximize the use of the battery, the default screen is closed and it goes to sleep, and the power button needs to be pressed once to start.

You can modify the settings to close and then standby or take no action by:

Open the Control Panel > Power Options > Advanced tab > There is a power button box under >> When the laptop is closed:1do not take any action; 2.

Standby; 3.Dormancy. When the power button is pressed:

1.do not take any action; 2.Ask me what I'm going to do; 3.

Standby; 4.Dormancy. 5.Shutdown.

The prerequisite for computer hibernation is to enable hibernation by opening the hibernation settings: Control Panel > Power Options > Hibernation tab.

WinXP system hibernation occupies about 1-2G hard disk space, and he writes the data in memory to the temporary space of the hard disk.

Power saving defaults. Because most laptops use batteries. So when you turn off the computer, the machine will automatically adjust the screen to turn off, which can save power and extend screen time.

In general, it will be restored after pressing enter a few times. But there are also some notebooks that have to press the start button once.

The computer goes to sleep and comes back up with a tap of the power button.

In fact, it can be set in the power management scheme, but the default is.

The lid closes and the computer goes to sleep.

By default, the computer will go to sleep after closing the cover, and after you turn it on again, press the power button.

Hello, I'm glad to reply to you, how to deal with the black screen after the laptop is closed1First, we need to figure out what happens when we close our laptop. There are two settings to close the lid, one is standby and the other is not to take action.

2.If it is in standby mode, it is in an energy-saving design. When the laptop closes the lid and then the sock bucket is opened, the screen is black, and the mouse can be moved once during the time period, and the display can be restored if you need to press the power button or power switch on the keyboard for a long time.

3.If you suspect that the grinding fruit is blacked out without taking measures, it may be a problem with the settings, which requires changing the settings in the system. Here we take the win10 system as an example, first we click on the battery icon in the lower right corner to open the battery power option.

4.After opening. We see that there are a lot of settings for the battery here, and we click on the other power settings at the very bottom.

5.Then, a new menu pops up and we select the function on the left to close the lid. 6.

Here we see that there are four places to choose from. We will use the battery and plug in the options below, select "Do not take action", and finally click Save, and it is set. At this time, we can try to close the lid again and open it again, whether there is a black screen.

I hope it will be helpful to you, and you can always find the teacher if you have any other questions in the future. I wish you all the best in your life.

Summary. Hello dear I'm glad to answer for you After the laptop closes, turn on the black screen because the computer has entered sleep mode, and at this time you need to press the power button to wake up the screen, if you want to solve this problem directly, you can also set the sleep mode, or directly change the function of closing the lid, follow the steps below: Set sleep mode steps:

1. Open the laptop, click the [Start] icon in the lower left corner of the computer, and click to open the [Control Panel] in the interface that appears above. 2. After entering the control panel interface, find [Power Options] and click to open the power settings. 3. Next, you will enter the power options interface, on the right side of the interface, you can see that the current selection is [Balance], and on the right side of the balance, there is [Change Plan Settings], click this option.

4. After clicking, you will enter the plan settings interface, find [Change Advanced Power Settings] in the lower left corner and click it. 5. After entering the advanced settings interface, find the [Sleep] function below and click the sleep option. 6. Finally, select [Allow the use of wake-up timer] to [Enable], so that the laptop will not appear black screen when it is opened after closing the lid.

Hello dear I'm glad to answer for you After the laptop is closed, the black screen is turned on because the electric section of the battery has entered sleep mode, and at this time you need to press the power button to wake up the screen, if you want to solve this problem directly, you can also set the sleep mode, or directly change the function of closing the lid, follow the steps below: Set the sleep mode Steps: 1. Open the laptop, click the [Start] grip icon in the lower left corner of the computer, and click to open the [Control Panel] in the interface that appears above.

2. After entering the control panel interface, find [Power Options] and click to open the power settings. 3. Next, you will enter the power options interface, on the right side of the interface, you can see that the current selection is [Balance], and on the right side of the balance, there is [Change Plan Settings], click this option. 4. After clicking, you will enter the plan settings interface, find [Change Advanced Power Settings] in the lower left corner and click it.

5. After entering the advanced settings interface, find the [Sleep] function below and click the sleep option. 6. Select [Allow the use of wake-up timer] to [Enable] after the most crack, so that the laptop will not appear black screen when it is opened after closing the lid.

Directly modify the function of closing the lid of the notebook1, we click [Start] on the desktop and then click the [Control Panel] icon. 2. Click [Electric Alarm Source Option] in the control panel3, click [Select the function of closing the lid] on the left side, 4. Select [Do not take any action] in the [Close the lid] with Lu Zao on the page, so that the black screen will not appear when the lid is closed in the future.

Hello dear <>

The reasons and solutions for turning on the black screen after the laptop is closed are as follows; 1. Zen is not because the computer runs a large game or software when the normal lag, then there is no need to worry, just wait patiently for the computer to recover or open the task manager to close the game or software. 2. The computer automatically cuts off the power supply because the computer is overheated. At this time, it is necessary to pay attention to the heat dissipation of the computer.

Try to use the computer at low temperatures, if it is a laptop, you need to install an old exhaust fan. If the computer has not been dusted for a long time, you can take it to the computer line to clean it once. 3. It is because the computer is infected with a virus.

This is the right thing to do with antivirus software, if it doesn't work, it is recommended to go to a computer or reinstall the system yourself. 4. If it is a desktop computer, it is because the plug connected to the display screen is loose, just check the plug. It's a laptop, and Ken can be caused by static electricity, so you only need to shut down the computer for a while.

None of the above, then it is likely that the display is broken, and it is recommended to go to a repair shop to repair it. I wish you a happy life! Hope mine is helpful to you ha.

Hello, it is a pleasure to serve you. There are several reasons why your laptop has a black screen when it closes and then turns it on: Power management settings ask questions, and some laptops are set by default to automatically go into sleep standby mode when the lid is closed, which saves power and improves battery life.

However, if you don't set it to shoot the year, it may cause a black screen after the computer is turned on. You can go to "Control Panel" - Power Options "- Change Computer Sleep State" to adjust the relevant settings to ensure that the computer can work properly when the lid is closed. Graphics card driver issues, some laptops when closed and then turned on, the graphics card cannot be switched to the discrete graphics card in time, which may cause the display to appear black.

You can try updating the graphics card driver, or adjusting the graphics card switching mode in the BIOS settings. Hardware failure issues, if the black screen issue occurs frequently, it may be caused by a hardware failure. For example, it could be that your laptop's shortcode memory module or hard drive is damaged, or it could be that there is a problem with the power adapter.