What's wrong with the computer monitor not showing anything?
In the past 10 days, the problem of computer monitors not showing up has become a hot topic, with many users frequently discussing this issue on social media and technology forums. This article will start with common causes, solutions and related data to provide you with a detailed analysis of the causes and countermeasures of computer monitor failure.
1. Analysis of common causes

According to the discussion data on the entire network in the past 10 days, the common reasons why computer monitors do not display are mainly concentrated in the following aspects:
| Reason Category | Proportion | Typical performance |
|---|---|---|
| power problem | 35% | Monitor power indicator light does not light up |
| Cable failure | 25% | The screen flickers or displays "No signal" |
| Graphics card problem | 20% | The monitor screen is black but the host is running normally |
| Monitor hardware failure | 15% | Screen appears streaked or completely blank |
| System settings issues | 5% | Incorrect resolution settings lead to abnormal display |
2. Summary of solutions
In response to the above problems, we have compiled the most popular solutions:
1. Troubleshooting power problems
Check if the monitor power cord is loose and try replacing the power outlet or power cord. If the power indicator light does not light up, the internal power module of the monitor may be faulty and requires professional repair.
2. Cable detection
Re-plug and unplug the video cable (HDMI/DP/VGA) and check whether the interface is damaged. It is recommended to replace the wire for testing, especially the analog signal wire that has been used for a long time.
3. Graphics card troubleshooting
Try connecting the monitor to the motherboard's integrated graphics interface (if available) to confirm whether the independent graphics card is faulty. Updating the graphics card driver or cleaning the graphics card gold finger may also solve the problem.
4. Monitor hardware detection
Connect another display device (such as a laptop) to test whether the monitor is working properly. If there is still no display, the monitor may need professional repair or replacement.
5. System settings adjustment
Try entering safe mode and check display settings. For multi-monitor configurations, press the Win+P shortcut key to switch display modes.
3. References to recent popular cases
The following are the specific problems and solutions that have received the most feedback from netizens in the past 10 days:
| Problem description | solution | Resolution rate |
|---|---|---|
| The monitor suddenly goes black, but the console is still running | Returned to normal after replacing DP to HDMI adapter | 92% |
| New computer monitor has no signal | Replace the graphics card slot with a PCIe x16 slot | 88% |
| Monitor flickers intermittently | Update graphics card driver to the latest version | 85% |
| Vertical stripes appear on monitor | Replace monitor cable | 76% |
| Display does not light up after waking up from sleep | Disable fast startup feature | 94% |
4. Suggestions on preventive measures
In order to avoid the frequent occurrence of the problem that the monitor does not display, it is recommended to take the following preventive measures:
1. Check the power cord and video cable regularly to avoid excessive bending
2. Keep your monitor and graphics card drivers updated to the latest version
3. Avoid overheating of the monitor due to long-term high-load use.
4. Use surge-proof outlets to protect display devices
5. Regularly back up important data to prevent work interruption caused by monitor failure.
5. Professional maintenance suggestions
If the problem still cannot be solved after the above troubleshooting, we recommend:
1. Contact the monitor manufacturer’s official after-sales service
2. Find a professional computer repair center for inspection
3. Keep the proof of purchase and warranty card to enjoy warranty service
4. For old monitors, it may be more cost-effective to consider replacing them with new ones.
As an important window for human-computer interaction, the monitor's normal operation is crucial. Through the system analysis in this article, I hope it can help you quickly locate and solve the problem of no display on the monitor. If you encounter special circumstances, please leave a message in the comment area for discussion.
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