When the laptop screen does not display, you can follow the following steps to troubleshoot and solve it: 1. Check the power and connection
1. Confirm power status: - Check if the power plug is securely inserted into the socket- Check if the power indicator light is on. If it is not on, it may be due to a power adapter malfunction or incorrect connection- Try replacing the power adapter or using the battery (if the battery is available) to see if it can solve the problem.
2. Check the screen connection cable: - Ensure that the screen connection cable (such as HDMI, VGA, DisplayPort, or the built-in screen connection cable of the laptop) is not loose or damaged- Try unplugging the connection cable again to ensure a secure connection. 2、 Check for hardware malfunctions
1. External monitor test: - Connect an external monitor to a laptop. If the external monitor works properly, it may be a problem with the built-in monitor in the laptop- If the external monitor also does not display, it may be a problem with the laptop's graphics card, motherboard, or other hardware.
2. Check the backlight: - Carefully observe the screen in a darker environment to see if you can vaguely see the image. If possible, it may be a problem with the backlight component.
3. Check screen hardware: - If possible, open the laptop screen case (note that it requires certain technical knowledge and experience, and may affect warranty), and check whether the screen connection cable is intact and firmly connected. 3、 Check software settings
1. Adjust display settings: - Enter the operating system, check the display settings, and ensure that the laptop screen is set to the active display screen- Adjust the screen brightness to ensure that it is not set to the lowest or turned off.
2. Update or reinstall drivers: - Check if the graphics card driver is working properly in Device Manager and try updating or reinstalling the driver- If using dual graphics cards (independent graphics card and integrated graphics card), try switching graphics cards to see if the problem can be solved.
3. Check the system sleep and automatic brightness adjustment settings: - Ensure that the sleep or suspend settings of the operating system do not cause the screen to turn off- Check and turn off the automatic brightness adjustment function to see if it can solve the problem. 4、 Other investigation methods
1. Force restart of computer: Sometimes, a simple restart can solve some temporary software or hardware problems.
2. Using a USB bootable drive: - Try using a USB bootable drive to start the system and see if it displays properly. This helps determine whether it is an issue with the operating system or system files. 5、 Seeking professional assistance
If none of the above methods can solve the problem, it may be a serious malfunction of the laptop display screen or other hardware. At this point, it is recommended to contact the official after-sales service center or a professional computer repair shop for repairs. Before sending for repair, please backup important data to prevent loss.
When the laptop screen does not display, troubleshooting and resolution can be carried out from multiple aspects such as power supply, connection, hardware, software settings, etc. If the problem is complex or cannot be solved by oneself, it is recommended to seek professional help in a timely manner.