After my computer sleeps, how to solve the black screen after waking up?

Causes a black screen after standby.

The main reasons for not being able to wake up are as follows:

1. If there is no external power supply; It may be that the battery is out of charge, just connect it outside.

Just plug it into the power supply.

2. If you can't wake up when connected to the external power supply; The battery can be removed. Then connect an external power supply to power it on.

3. It is possible that the machine has a hardware failure; There are mainly hardware reasons for this; motherboard and motherboard power failure; Or a faulty display. We basically don't judge the failure of this kind of hardware. It can be sent to a professional for overhaul.

Here's the difference between system standby and system hibernation (excerpted from the network):

1. System standby: temporarily stop operating the computer for a period of time, and the computer will enter a power-saving mode when there is no work to do, but it will immediately enter the working state when performing operations such as tapping the keyboard and moving the mouse.

When the system is in standby, the data that is currently running is stored in memory, and the machine only supplies power to the memory, while components such as hard disks, screens, and CPUs stop supplying power. Since the data is stored in fast memory, it is faster to enter the waiting state and wake up. However, this data is stored in memory, and if the power is cut off, the data will be lost.

2. System hibernation: When the computer is not operated for a long time, the computer stops working and turns off the power of most parts, at this time, you need to press wake

up button to wake up the computer and enter the working state.

When the system is hibernating, the computer will save the data that is currently running in the hard disk, and the power supply of the whole machine will be completely stopped. Because data is stored on the hard drive, which is much slower than memory, it is relatively slow to go to sleep and wake up, and you can completely disconnect the power of your computer while you are sleeping.

After the computer sleeps, the CPU is still working at a low frequency, however, the power manager has stopped powering the CPU fan, so after a long time, the CPU is too hot due to heating, resulting in a black screen of crashes.

Solution: Turn on the BIOS and find "PowerManagement".

setup”，“cpufanin

suspend", the default value is "off", change it to "on".

You've set up screen savers and standby status. You right-click on the desktop Properties Screen saver (off select None) Power Management Power Usage Press (always on, turn off all phases and select Never). Advanced (remove all ticks) Sleep (remove the hook which I used to sleep). ok

This is because, after the computer sleeps, the CPU is still working at a low frequency, however, the power manager has stopped supplying power to the CPU fan, so after a long time, the CPU is too hot due to heating, resulting in a black screen of crashes.

Solution: Turn on the BIOS and find "PowerManagement".

setup”，“cpufanin

suspend", the default value is "off", change it to "on".

You've set up screen savers and standby status. You right-click on the desktop Properties Screen saver (off select None) Power Management Power Usage Press (always on, turn off all phases and select Never). Advanced (remove all ticks) Sleep (remove the hook which I used to sleep). ok

It is not recommended to use the sleep function, and many machines will die of sleep.

It is okay to use the monitor to sleep, and it is best not to use the host.

Check the monitor power supply.

When the display is not lit, check whether the power supply of the display is plugged in, if the power switch of the display is a touch switch, when the display is powered on, a slight crackling sound should be heard, and then it can be judged that the switching power supply circuit of the display is good.

Computer generally refers to the computer, computer, commonly known as computer, is a modern electronic computer used for high-speed calculation, can perform numerical calculations, and can also carry out logical calculations, but also has the function of storage memory.

Black screen can't wake up after computer hibernation Solution:Tools Material: Lenovo GeekPro 2020 computer, win10 system.

Method Steps:1. Right-click on this computer and click Manage.

2. Select Device Manager.

3. Network adapter.

4. Double-click the NIC driver.

5. Step 3: Click Power Management and check Allow the computer to turn off this device to save power.

6. Check Allow this device to wake up the computer, and click OK.

The solution to the black screen that cannot be woken up after the computer is asleep

Method. 1. Check the power supply of the display.

When the monitor is not lit, check that the power supply of the monitor is plugged in, if the power switch of the monitor is a tact switch, when the monitor is powered on, a slight sound should be heard"Crackling"sound, at this time, it can be judged that the switching power supply circuit of the display is good.

Then check whether the power switch of the monitor has been turned on, whether the power indicator of the monitor is on, and whether there is one when you approach the monitor screen with your hand and move it slowly"Sizzle"At the same time, the hairs on the hands have the feeling of being sucked up, which indicates that the high-voltage circuit of the display is in normal working condition.

Method. 2. Check the power supply of the host.

When the display is not lit and there is no image display on the black screen (the current display on the market has no signal to send from the host, the screen will have no signal cable connection), first check whether the host power supply is well plugged in, whether the fan of the power supply is rotating normally, and whether the power indicator and hard disk indicator on the host panel are flashing or not, because if the host power supply does not work or the motherboard does not have power supply, the display will not have an image display when it does not receive a signal.

Method. 3. Check the data cable of the monitor.

If you are sure that the monitor has been powered on, and there is a high voltage generated, and the display is still not lit, continue to check whether the data cable connector of the display is in good contact with the signal output interface of the graphics card, and whether there is any looseness; Unplug it again and check if there is any bent or broken needle or a lot of dirt in the D-connector.

This is a problem that many users often encounter, when connecting the D-type socket, the force is uneven, or forgetting to tighten the fixing screw of the interface, so that the interface is loose and causes poor contact, or due to improper installation method or excessive force, there are broken needles or bent needles in the D-type interface, resulting in poor contact.

The solution to the black screen that cannot wake up after the computer is hibernate is as follows:

Tools Raw materials: Lenovo LAPTOP-75II97PN, Windows10.

1. Shut down and restart.

Press the power switch to force shutdown and restart. Then after restarting the computer, go to the desktop of the computer, right-click on a certain location and click on the "Properties" option.

2. Screensaver.

Go to the management window that displays the properties, here switch from the theme option to "Screen Saver", under the screen saver settings window, find the power option of the monitor, and click "Power" below it.

3. Enter the Properties panel.

Click on the power options to enter the source options properties panel, click on the power usage scheme options in this panel to select "Always on", and then click on all three options below to select "Never".

4. Cancel hibernation.

Click on Hibernate in the options at the top of the panel and click Cancel in front of "Enable Hibernation".

Summary. Method Step 1 4: Read step by step to shut down and restart, press the power switch to force shutdown and restart. Then after restarting the computer, go to the desktop of the computer, right-click on a certain location and click on the "Properties" option.

2 4 The screen saver enters the management window of the display properties, here switch from the theme option to "Screen Saver", under the screen saver settings window, find the power option of the monitor, and click "Power" below it

Dear, let's do it like this.

Method Step 1 4: Read step by step to shut down and restart, press the power switch to force shutdown and restart. Then after restarting the computer, go to the desktop of the computer, right-click on a certain location and click on the "Properties" option. 2 4 The screen saver enters the management window that shows the pose, here switch from the theme option to the "screen saver", under the screen saver settings window, find the power option of the monitor sail viewer, and click "Power" below it

3 4 Enter the property panel and click on the power option to enter the source option property panel, click on the power usage scheme option in this panel and select "Always on", and then click on the three options below to select "Never". 4 4 Cancel hibernation by clicking on the options at the top of the panel, take the crack and click Cancel in front of "Enable Source Empty Hibernation".

If you can't wake up with a black screen after your computer sleeps, you need to modify the power options and sleep mode, here's how:

Tools Ingredients: Dell Ring G15, Win10, Settings 1, Open the control panel of the Win10 system, and then select the power option to enter.

2. Select the power plan you are currently using in the open interface, and then click Change Plan Settings to enter.

3. Set the option to put the computer into sleep mode to never, and finally save the modifications.

4. Continue to turn on the power options, make sure Sleep is Never, Mixed Sleep is off, and finally save the settings.

Question 1: What should I do if the black screen cannot be woken up after the Suichang computer is asleepAnswer: 1. Right-click on this computer and click on Manage.

2. Select Device Manager. 3. Network adapter. 4. Double-click the NIC driver.

5. The third step is to click Power Management and check Allow the computer to turn off this lead knowledge backup to save power. 6. Check Allow this device to wake up the Huaizu computer, and click OK.