What causes the desktop screen to flicker? How to solve the black screen of the display?

There are two kinds of display flashing. One is black screen flashing, the other is flashing screen, and the flashing of the screen is similar to the electromagnetic wave that temporarily interferes with the screen distortion caused by the computer. Generally we need to check from the host voltage, graphics interface, display interface and environmental interference. Read below to understand the causes and solutions that cause the desktop screen to flicker.

The new computer monitor computer screen flashes rarely or jitter, if the new monitor failure to occur we must first rule out the following possibilities:

First, the computer screen flashing reason detection: show Is the refresh rate setting correct?

Right-click on the blank area of ​​our computer desktop---Personalization--Display--Change the display settings---Advanced settings as shown below:

1. Display; br>

2, change the display settings;

3, advanced settings.

where you can see the monitor refresh rate is set to & ldquo; 60 & rdquo;, which is the cause of the display screen constantly shake. Set the new frequency to “75” above, then click OK to return to the desktop. Some laptops only have a value of 60HZ, so there is no need to set them up. In addition, if the settings are too high, the display may be damaged, so everyone tries to change it. If it has not been moved before, you can directly select the default. This kind of computer screen flicker problem is better solved.

Second, the computer screen flashing cause detection: check the graphics card driver is correct

Sometimes when we enter the computer's display refresh frequency, but found that there is no refresh frequency to choose from, this is because of the front graphics card The driver is incorrect or too old. Computers with earlier purchase time are prone to this problem. At this time, do not use the driver on the CD that came with the purchase of the computer. You can check and install the latest version of the driver yourself. For this type of computer screen flicker problem, you can use the driver wizard or driver to install the driver.

Third, computer screen flicker cause detection: whether there is interference around

Observe the presence of strong electric field or strong magnetic field around the computer monitor, magnetic field interference is very easy to cause computer screen jitter or computer screen flicker The method of elimination is to place the computer in another open place and observe it. You can also go to another place to take a good computer to test and eliminate. Try not to bring the display close to the large electrical products. You can also restart the computer monitor to see that the current display has automatic degaussing during the opening process.

Fourth, computer screen flicker Cause detection: display hardware problems or power problems

The most encountered is the hardware screen caused by the computer screen flicker, such as the monitor and the host connected to the data line is not equal Everyone can use the method of replacement and elimination. In addition, the monitor power supply only focuses on the object of investigation. In the fault of the computer screen jitter and the computer screen flashing, the computer screen flashing encounters the most is the monitor power problem. Many of them are aging monitors and display failures. In addition to the interference of the magnetic field or electric field, the display jitter is the most aging fault of the display. The solution is to take the professional maintenance and repair. Generally, new monitors can be used for warranty or replacement. It is common for new monitors to flicker on computer screens due to hardware problems.

The above is the cause and solution for causing the screen of the desktop computer to flicker. The aging or contamination of the display line interface is most likely to be ignored. After checking the important components, the user can slightly maintain the computer.