Turned on the computer screen flashing, computer screen jitter! Look at the words on the screen is very cost-eye, small set will lead to computer screen flashing, computer screen jitter is also summed up the reasons.
What about the computer screen flashing? There are four common types of reasons for this:
1 bad contact and signal jamming class;
2 Screen refresh frequency is too low and graphics driver;
3 inferior power supply;
4 hardware problems. computer screen flashing, black screen, computer screen jitter, in addition to make you feel the eyes will soon fatigue, long time will bring to the user eye disease. If not resolved in a timely manner will cause damage to your system, because the system itself may be hidden problems reflected in the screen jitter phenomenon. In fact, there are many reasons can cause the screen jitter phenomenon, in fact, it is not so difficult to solve.
"Solution for computer screen flicker":
One: Contact bad problem.
First look at the host and monitor power cable is not stable, if relatively loose will appear this splash screen.
Second: signal interference problem.
The cable that connects the monitor has no shielding coil, and if there is no interference that black bump, will also have interference to the screen QQexternal.exe is what process. Also check nearby whether there is interference, such as high-power audio, power transformers. Monitors are susceptible to strong or strong magnetic fields, and at some point the screen jitter is caused by a magnetic field or an electric field near the monitor. In order to remove all interference from the perimeter of the monitor, you can move the computer to a table around the empty, and then the power-on test, if the phenomenon of screen jitter disappears, then your computer where the original place has a strong electric field or strong magnetic field interference, please suspicious things (such as speakers of the subwoofer, magnetized cups, etc.) Take it away from the computer. Then turn off the monitor and reopen it a few times to achieve the purpose of degaussing (the current display has an automatic degaussing function when it is turned on).
Third: The screen refresh rate problem.
Desktop Right-click-> Properties-> set-> Advanced-> monitor-> screen refresh frequency, CRT adjust to 75Hz or above (laptop LCD screen LCD to 60Hz). In fact, monitor screen jitter is the main reason is the display of the refresh rate is less than 75Hz, at this time the screen will often appear jitter, flashing phenomenon, we simply adjust the refresh rate up to 75Hz above, then the computer screen jitter phenomenon will not appear again.
Four: The video card driver is not correct.
Check to see if your video card is loose, try to uninstall the computer's graphics driver and install a stable version of the drive. Sometimes when we go into the computer's monitor refresh rate, we find that there is no refresh rate to choose from, because the driver of the previous video card is incorrect or too old. It's easy to get this problem on a computer that has an earlier purchase time at this point do not use the purchase of the computer with the CD-ROM driver, you can download the corresponding display card of the latest version of the driver, and then open the "System" Properties window, click the "Hardware" window of the Device Manager button to enter the system's device list interface. Right-click the display card option in the interface, click Properties from the pop-up right-click menu, click the Driver tab in the pop-up Graphics Properties Settings window, click the Update Driver button in the corresponding tab page, and then update the video driver to the latest version, as prompted by the wizard. Finally, the computer system restarted a bit, if the driver installation is appropriate, the display will appear refresh frequency selection, and then set the refresh rate of more than 75Hz to solve the computer screen flashing.
V: Restore the BIOS for factory settings, plug the memory and video card, reinstall the full version of the operating system.
VI: The inferior power supply or power device has been aged.
Many of the computer power use of the components of the work, materials are very poor, easy to cause the computer circuit is not smooth or power supply ability to keep up, when the system is busy, the monitor will appear in particular the phenomenon of computer screen jitter. The power supply must be replaced at this time.
Seven: Display, graphics and other hardware problems.
Sometimes jitter can occur because of the high age of the monitor used. In order to verify the aging of the electronic components inside the display, the faulty monitor can be connected to someone else's computer for testing, if the fault still disappears, the monitor is bad and needs to be repaired.
Eight: Virus mischief.
Some computer viruses will disturb the screen display, such as: character inversion, screen jitter, graphics flip display.
"To supplement some of the basics of liquid crystal displays": Liquid crystal displays sometimes automatically adjust the image, especially when you reload the system or use a key to restore the system, if you do not adjust the resolution and refresh rate in time, the LCD will automatically adjust the image, this is we will see the screen flash flash, Under normal circumstances, the refresh rate can not be arbitrarily high, the increase will aggravate the computer hardware load on the hardware is not good, especially the graphics card.
Computers have an optimal resolution and refresh rate, these two are corresponding, the higher the resolution, then the lower the refresh rate, many people now use more than 17 inches of liquid crystal display bar, and this kind of liquid crystal display the best resolution is 1280x1024, and then the highest refresh rate is 75, the minimum is 60, As long as the refresh rate to a minimum of 60, the computer will not automatically adjust the image, and will not appear computer screen flashing. If the other liquid crystal display, as long as the resolution to the best, and then adjust the refresh rate to the screen does not flash so far. If the refresh rate is the default, can not be adjusted, it is likely that you installed a video card driver has problems, the proposed use back to the original graphics driver, the latest driver is not necessarily the best.