When the laptop screen suddenly goes black, I believe many friends will be caught off guard. PHP editor Zimo will bring you an article today to deeply analyze the reasons for the black screen on laptops and provide practical solutions. If you are suffering from a black screen on your laptop, you may wish to continue reading to find the answer to your question.
Suddenly, your laptop screen turns black. You try to press the power button and even restart it several times, but the problem remains the same. A black laptop screen is definitely an annoying problem, so what exactly causes this problem and how can we solve it?
Why does the laptop screen appear black?
Laptop black screen can have many causes, including hardware failure, driver issues, system crashes, etc. Hardware failures can originate from components such as the screen, graphics card, memory, or motherboard, while driver issues can prevent the screen from displaying properly. In addition, system crash is also one of the common reasons for laptop black screen. System crash may be caused by software conflict, virus infection or system file corruption.
How to solve the black screen problem on laptop?
When solving the laptop black screen problem, we can try some simple methods. First, check whether the laptop is plugged in and the battery is charged. Sometimes low battery can cause a black screen. Secondly, if you have an external monitor, you can try to connect the external monitor to see if it can display normally. This will help determine whether it is a screen failure or other problems. If none of these methods work, you can try entering Safe Mode or Recovery Mode to look for possible driver or system issues. If the above methods still do not solve the problem, you may need to seek professional help.
A black screen on a laptop is a troublesome problem, but when you encounter this problem, you might as well calm down and try some simple methods. If the problem persists, seek help from professionals in time. I believe the problem will be solved soon. solve.
Thank you for reading this article. I hope this article can help you better understand the laptop black screen problem and effectively solve it when you encounter a similar situation.
Why does the laptop screen frequently go black? There are many reasons for a black screen in a laptop. Common reasons for a black screen are:
Poor contact of the display data cable, poor contact of the graphics card or CPU, poor contact of the memory module, poor power supply performance, machine infection with CIH virus, or destructive bios Refresh, Microsoft black screen, please patch.
1. The screen is black when starting up, only the indicator light is on, and there is no response from the host. You can't feel the fan spinning when you reach behind the console. There is no voltage measured on all channels. After removing it, it was found that the power adjustment tube was broken, so I replaced it with a normal one.
2. A long alarm sounds when turning on the phone, which should be a memory failure. Unplug the memory, clean the gold finger, and insert it normally.
3. The power supply and CPU fan are normal when starting up, but there is no response on the screen and there is no self-check sound. This machine adopts slot1 structure, the CPU is prone to poor contact, and reinstallation is normal.
4. The power-on self-test is normal, but the screen does not light up. According to the owner, unplug the display signal cable at the back. When I pulled it out, I saw that one of the pins was bent.
5. The boot screen does not light up. The machine does not self-check. Use the meter pin to short-circuit the startup terminal on the motherboard to start normally. It turned out that the start switch on the panel was broken.
6. There is no self-check when turning on the machine. Check that the power supply is normal. Using the minimal system method, the machine can start normally when the optical drive is unplugged.
So solve the black screen on Lenovo laptop when it starts up:
1. If you encounter the situation where the Lenovo laptop’s power button is on but the screen is black, you can remove the battery on the back of the laptop, connect it to the computer only with the power adapter, and try to boot it once. If it boots normally, , which is caused by poor battery contact or battery failure.
2. Or use the battery only without connecting the power adapter. If the power is turned on normally, it should be caused by a problem with the power adapter or a short circuit in the notebook power interface.
3. Or unplug the power cord, remove the battery, and hold the power button for 30 seconds without letting go. Try booting once. If it boots normally, it is just caused by an abnormal motherboard BIOS. 4. Or unplug the power cord, disassemble the notebook battery, open the back cover of the notebook memory, plug and unplug the memory, wipe the gold finger part with an eraser, and then plug it in again (. If the above operations cannot solve the problem, you need to send the Lenovo notebook for repair. Center detection.
Basically, it will be fine if you turn on nf 8 and restart the system. No problem. 5. A black screen on the inside laptop?
Second, the computer enters the sleep state by itself, and the time for the computer to automatically black screen and sleep can be changed at the power source.
Third, if you accidentally touch the black screen key on the keyboard, the laptop keyboard actually has a black screen function. After the black screen, no matter how you click the mouse or other keys, it will not be restored unless you press the black screen key again. This every time Brands are different, so you have to read the icon clearly.
If the computer has a black screen for a period of time when it is first turned on, it proves to be a lag problem, and some large software can be uninstalled.
System problem. Some laptops will have a black screen because a certain software is incompatible with the system, or the system time is too long. We can consider reinstalling the system.
The computer memory module is loose or dirty. When the computer can be turned on, but the screen does not light up, it is likely that the memory module is dirty or a little loose. Some computers will keep alarming.
When you really can’t find the reason for your laptop, I will teach you a non-professional secret method, that is, after opening it, move the things and plug them in again (including the electronics in the computer, pull them out and discharge them), it will definitely work, unless If the hardware is broken, then you can only go to the maintenance personnel to replace it. If it is software, then reinstall the system. These two methods are absolutely effective.
First check if the contact is good. You can separately check whether the contact between the graphics card and the monitor is good, and whether the contact between the graphics card and the motherboard I/O slot is good. If necessary, remove it and reinstall it to ensure that it is installed in place and the contact is good.
If there is no problem with the contact, it is best to try another monitor to make sure there is no problem with the monitor. If there is no problem with the monitor, check whether the CPU fan is running. If it is running, use a multimeter to measure whether the voltage output is normal ±12V, ±15V. If it is not normal, you can try another power supply.
If a black screen still appears, remove the components installed in the computer and leave only the CPU, graphics card, and memory module. This way, the cause of the fault can be limited to the CPU, motherboard, and memory. Generally, if there is a memory failure, there should be an alarm sound. If the memory failure is eliminated, only the CPU and motherboard are left.
Change to a normal CPU (should be compatible with the computer being tested), start the computer and test again. If a black screen still appears, you can only change the motherboard. The problem should also appear on the motherboard. Computer black screen failure may indicate that there is a more serious problem with the computer. You may wish to troubleshoot it according to the above methods when a black screen occurs. During the processing process, elimination and replacement methods should be flexibly applied to eliminate and deal with the phenomenon that occurs at the right time
1. When the monitor has a black screen and no image is displayed (however, the monitors currently on the market will display on the screen when there is no signal from the host. "No signal cable connection"), first check whether the host power supply is plugged in well and whether the fan of the power supply is rotating? Are the power indicator light and hard disk indicator light on the host panel flashing? Because if the host power supply does not work or the motherboard does not provide power, When the monitor does not receive a signal, of course there will be no image displayed.
2. Check again whether the power supply of the monitor is plugged in well? If the power switch of your monitor is a touch switch, you should hear a slight "pop" sound when you power on the monitor. At this time, you can Determine whether the display's switching power supply circuit is good. Is the power switch of the monitor turned on? Is the power indicator light of the monitor on? When you approach the monitor screen with your hand and move it slowly, is there a "hissing" sound and a feeling of the hair on your hands being sucked up? This is Check whether the high-voltage circuit of the monitor is working properly.
3. If it is determined that the monitor has been powered on and high voltage is generated, continue to check whether the data cable connector of the monitor is in good contact with the signal output interface of the graphics card? Is there any looseness? Then unplug the plug and check, in the D-type interface Is there a bent or broken needle or a lot of dirt. This is a problem that many users often encounter. When connecting the D-type socket, the force is uneven, or the fixing screws of the interface are forgotten to be tightened, causing the interface to loosen and cause poor contact, or the D-type socket is damaged due to improper installation methods or excessive force. There are broken or bent needles in the interface, causing poor contact.
It’s simpler, test it through an HDMI or VGA external monitor; if the screen is still black, the graphics card or motherboard problem accounts for a large proportion, after-sales service or direct testing of the graphics card and motherboard can solve the problem
Laptop A black screen on a computer is a common problem that may cause users great distress. However, in most cases this problem can be easily solved. In this article, we will detail how to quickly diagnose and resolve common causes of a black laptop screen.
There are many reasons for laptop black screen, including but not limited to the following:
Hardware failure: For example, there are problems with hardware components such as motherboard, graphics card, and power supply. Software problem: The operating system or driver is malfunctioning. Power problem: Battery is exhausted or power adapter is faulty. Setting problem: The monitor is set incorrectly or the screen brightness is adjusted too low.Let’s take a look at how to diagnose and solve the problem of laptop black screen step by step:
First of all, check whether the power supply is working properly. You can try the following steps:
Check whether the power adapter is working properly, and you can use a multimeter to measure whether the output voltage is normal. To check whether the battery is exhausted, you can try unplugging the power adapter to see if the battery can provide power. If the battery is also discharged, please charge it or replace it with a new one in time.If there is no problem with the power supply, then the hardware connection may be faulty. You can try the following steps:
Check whether the connection between the motherboard and the graphics card is loose, and you can try to replug and unplug the cable. If you have an external monitor, you can try connecting the external monitor to see if it can display normally. If the external monitor cannot display properly, the motherboard or graphics card may be faulty and needs to be repaired or replaced.If there is no problem with the hardware, then there may be a problem with the software settings. You can try the following steps:
Check your monitor settings to make sure the brightness and contrast are set correctly. Check whether the graphics card driver is the latest, you can try to update the driver. If it is a Windows system, you can try to enter safe mode to see if it can be displayed normally. If none of the above methods can solve the problem, you may need to reinstall the operating system.Through the above steps, I believe you will be able to quickly diagnose and solve the problem of laptop black screen. If it still cannot be solved, it is recommended that you contact professional maintenance personnel in time for further inspection and repair. I hope this article is helpful to you and I wish you a happy use!
The laptop black screen host is still running
Whether it is for work or entertainment , laptops have become an indispensable part of our daily lives. However, sometimes we may encounter some problems, such as a black screen on the laptop, but the console is still running. This problem can be confusing and frustrating, but luckily, there are some effective ways to deal with it.
First, make sure your laptop is properly connected to the power adapter. Check that the adapter is plugged into the power outlet and make sure the connection is stable. If the adapter is connected properly, continue to check whether the battery is installed correctly. Sometimes, the battery can become loose or broken, causing the laptop to stop working properly.
Sometimes, the laptop only has some temporary faults, and the problem may be solved by restarting the computer. Press the power button to shut down the laptop and wait a few minutes before restarting. This will clear the temporarily stored data and reinitialize the computer system.
The laptop black screen problem may be caused by a fault in the hardware connection. Check the computer's various peripherals, such as keyboard, mouse, headphones, etc., to make sure they are all connected properly. Occasionally, the plug may become loose or detached, causing the device to not function properly.
If the laptop has a black screen problem when starting normally, try entering safe mode. Safe mode can help you troubleshoot some software or driver problems. When you enter Safe Mode, only necessary system files and drivers are loaded, which helps determine the cause of the black screen issue.
Outdated or corrupted drivers may cause laptop black screen issue. Updating drivers is a common solution to this problem. Open Device Manager, find the device related to your laptop and check if there is a driver update available.
Sometimes, computer black screen problem is caused by viruses or malware. Run a comprehensive security scan to make sure your computer isn't exposed to any threats. Use reliable antivirus software, update virus databases in a timely manner, and scan the entire system.
If none of the above methods solve the black screen problem, you can try to restore to the previous system state. Windows operating systems usually provide a system restore function that allows you to restore your computer to a previous snapshot. This can help you troubleshoot some problems with corrupted system files or incorrect settings.
If you have tried the above methods and the problem still persists, you may need to seek professional help. Contact a computer repair specialist or manufacturer to describe your problem and ask them to provide you with further support and advice.
Whether it is for work or entertainment, laptops play an important role in our lives. When it has a black screen problem, don't panic, follow the above methods to troubleshoot step by step, I believe the problem will eventually be solved.
컴퓨터 시스템에 절전 모드 해제 버그가 발생한 것일 수 있습니다.
일반적으로 이런 경우에는 전원 버튼을 10초 동안 누르고 강제 종료했다가 다시 시작하면 다시 사용할 수 있습니다.
사용을 재개한 후에는 Windows 업데이트를 확인하는 것이 좋습니다
비슷한 상황은 일반적으로 Windows 배경에서 자동으로 그래픽 카드 드라이버를 업데이트하는 것과 관련이 있습니다
The above is the detailed content of Laptop black screen: what to do? Why is the screen black?. For more information, please follow other related articles on the PHP Chinese website!
Comparative analysis of win10 home version and professional version
How to register a Bitcoin wallet
webstorm changed to Chinese version
Popular explanation of what Metaverse XR means
Windows 10 startup password setting tutorial
What is topology optimization
unicode encoding conversion
c++sort sorting function usage
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
