The computer monitor often loses signal suddenly and the problem has lasted for 2 days.

The computer monitor often goes black suddenly and then lights up again after 2 or 3 seconds

Solution to black screen on monitor:

1. If the monitor is not used for a long time, the monitor will automatically enter the sleep energy-saving mode and the screen will be black.

Solution: Take win7 system as an example.

(1) Right-click a blank space on the desktop, select "Personalization" in the menu, and open the personalization settings dialog box

(2) Click the red box in the picture above to select "Screen Saver" to enter the screen saver setting dialog box.

(3)Set the screen saver to "None". And click "Change Power Settings" to enter the power settings dialog box.

(4) Click "Change Plan" to enter the change settings dialog box.

(5) In the blue box, click the drop-down triangle, select "Never", and then "Save changes" to exit.

After setting, the monitor will no longer automatically black out.

2. Monitor failure causes a black screen.

On the internal power supply board of the monitor, the capacitors in the power supply output part are aging, leaking, bulging, and failing. When the monitor is first turned on, because the capacitor is not completely necrotic, the power supply is normal within a short period of time, so it can display normally. After working for a period of time, the power supply was seriously insufficient, causing the backlight of the LCD monitor to go out, resulting in a black screen.

Solution: Send it to a professional monitor repair center, or even worse, damage the components. The cost is about 30---50 yuan.

3. The monitor signal cable is loose or has poor contact, causing the video signal sent to the monitor to be intermittent, resulting in a black screen on the monitor.

Solution: Re-plug, install and fix the monitor signal cable. If the fault persists, you can replace the signal line and test.

4. The graphics card performance fails and the operation is unstable, resulting in a black screen on the monitor.

Solution:

1. Update the graphics card driver and test. If the fault persists, directly replace the graphics card and test.

Note: If you are using an integrated graphics card, you can install a separate graphics card for testing. Or directly replace the motherboard with integrated graphics card for testing.

5. The motherboard performance fails and the operation is unstable, resulting in a black screen on the monitor. Solution: Replace the motherboard directly and test.

Why does my monitor screen go black for 2 seconds and then light up again

Reply: About the black screen problem on the 20th

You can turn off automatic updates in the control panel.

In view of Microsoft's plan to crack down on pirated XP, we would like to remind everyone to take some evasive measures. Except turn off our automatic updates. You also need to close a hidden program on your computer. The operation method is as follows, please inform each other and protect our xp.

1. On the desktop, right-click "My Computer", a dialog box will pop up, and select "Manage (G)"

2. A box will pop up. There is "Services and Applications" at the bottom left of the box. Click on it.

3. "Service, wmt control" etc. pop up on the right, select that service and double-click "Service".

4. Among the many programs on the right, select “Automatic Updates” (about the fifth one from the top).

5. Double-click Automatic Updates and a dialog box will pop up. The startup type was originally automatic. Now change it to "Disabled". The service status was originally started. Now click "Stop" to change it to "Stopped".

6. In the last step, remember to click Apply and then OK.

After completing this step, our computer has basically lost contact with Microsoft. Microsoft also has a hard time finding us. Good luck to everyone. (Remember to turn off the automatic update of system properties)

Author: Hanbinghuofeng (reprinted)

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