Win7 system computer monitor flashing and flashing black screen failure reasons and solutions

recently win7 system users reflect, computer monitor flashing a flash black screen have encountered? There are many situations that cause the computer monitor to flash and black screen. How to solve this problem completely, you can refer to the method described in the following small series to solve the problem, I hope to have practical help for everyone.

First, solve the problem from the software of the computer

The cause of the failure:

may be a software compatibility issue, given that the user is playing the game. It will appear frequently, so it is important to check whether the game software is incompatible with the graphics driver.

Solution:

Update the graphics card driver.

Fault Cause 2:

Since the user is "most recently", you can check if you have any software installed recently that causes the display problem.

Solution:

Check and try to uninstall the newly installed software. This step can be done with software such as shadow system. You can also use system restore points.

Second, consider the hardware

Fault cause one:

It may be due to poor connection between the host and the display.

Solution:

1. The connector of the cable can be removed for simple cleaning;

2. If conditions permit, it can also be cleaned with anhydrous alcohol. Then plug it back in to see if it returns to normal.

Fault Cause 2:

It is also possible that too much dust in the chassis causes the system to be abnormal due to excessive temperature.

Solution:

Clean the inside of the chassis.

If you don't solve the problem completely, you can only damage the graphics card or monitor, so you can only find a professional to repair it.

Third, the fault part

1, high voltage board.

2, backlight tube, for example, a tube burned, or wiring solder joints, oxidation, rust, or socket oxidation, rust.

3, AD driver board.

Fourth, the display refresh rate setting is incorrect

Fault cause one:

If the refresh rate setting is too low, it will cause screen jitter.

Solution:

1. Check the method by right-clicking on the blank area of ​​the system desktop;

2. Click the “ attribute from the pop-up context menu. ” command, enter the property setting window of the display;

3. Click the “Set" tab in the window, and click the “Advanced” button in the corresponding tab page that pops up ;

4, open the display's advanced property settings interface, and then click on the "Monitor" tab, from which you can see the display's refresh rate is set to “ 60 & rdquo;, which is the cause of the display The reason why the screen is constantly shaking;

5, set the new frequency to “75” above, then click OK to return to the desktop.

In fact, the main reason for the monitor screen jitter is that the display refresh rate is lower than 75Hz. At this time, the screen often appears jittery and flickering. We only need to increase the refresh rate to above 75Hz. The phenomenon of screen jitter will not appear again.

V. Graphics card driver is incorrect

Fault reason:

Sometimes when we enter the computer's display refresh rate, we find that there is no refresh frequency to choose from. The driver of the front graphics card is incorrect or too old.

Solution:

Computers that are purchased earlier are prone to this problem. Do not use the driver in the CD that came with the computer.

1. You can download the latest version of the corresponding driver card on the Internet, and then open the Properties window of the system.

2. Click on the “Hardware” window. “Device Manager” button, enter the system's device list interface;

3, right-click the display card option in the interface, click from the right-click menu pop-up menu "properties" Command, then in the pop-up graphics card property settings window, click the "Driver" label;

4, then click the "Update Driver" button in the corresponding tab page, then follow the wizard Prompt to gradually update the graphics card driver to the latest version;

5, finally restart the computer system, if the driver is installed properly, the display refresh frequency selection will appear, and then set the refresh rate to 75Hz More than that.

VI. Magnetic field interference causes display jitter

Fault reason:

The display is easily affected by strong electric field or strong magnetic field. If you use the two methods described above, you can't To solve the jitter problem, you should suspect that the screen jitter is caused by a magnetic field or electric field near the display.

Solution:

In order to eliminate all the interference around the monitor, you can move the computer to a table that is all around, and then start the test if the screen jitter disappears. , then the original place of your computer has a strong electric field or strong magnetic field interference, please take suspicious things (such as the speaker's subwoofer, magnetized cup, etc.) from the computer nearby. Then turn off the display and re-open it a few times to achieve degaussing (the current display has automatic degaussing when turned on).

VII. Poor contact of the display card

Open the case, pull the display card out of the slot, and then wipe the dust from the gold finger of the display card by hand. It is best to find it soft. Fine brush, gently remove all the dust on the surface of the card, then wipe it with a clean rubber on the surface of the gold finger to remove the oxide layer on the surface of the gold finger, and finally insert the card into the motherboard again. In the socket, secure it to the chassis casing with screws. After the test is turned on, the general fault can be solved.

Related reading:

Win7 system computer screen is always the cause of flashing color change and its solution

The above is the failure of the win7 system computer monitor flashing black screen Reasons and solutions All the contents of the introduction, you can solve the problem according to different reasons, I hope this tutorial content can help everyone.