What about the monitor color instability?

The first thing to understand is that the screen color is not normal is the two main causes: Video card and display. So let's just say it from this Shina.

　　Software issues:

The driver for the video card is not installed. In fact, even if there is no driver, the display will correctly display each color, not the case of loss of meta color, but if the driver installation is not correct but this problem may occur. such as video card type and drive type corresponding inconsistent, version inconsistent. This problem is very simple to solve, the original graphics driver uninstall reinstall.

The way to uninstall the drive is: My Computer--right "properties"--hardware--Device Manager--Display card--right--uninstall. The way to detect whether a graphics driver is a problem is simple: In Windows XP, for example, if the computer is booting into a scrolling wait screen, if the XP logo is correctly displayed red on the system but cannot be displayed, the video card driver is not correct.

　　Monitor problem:

Monitor hardware failure. The cause of the display hardware problems are many, such as the picture tube aging, the environmental humidity caused by the line oxidation, electrostatic, etc. will cause color display is not normal. According to different reasons to take different methods can be, such as the display in the ventilation and so on (many people like to display a cloth to dust, here to remind everyone is, dustproof to use a special dust cover, otherwise it may cause the display of ventilation and heat dissipation).

　　Video card problem:

Displaying problems is the most common problem. For example, card slot contact is not tight, graphics card overheating, graphics circuit and component issues. For the card slot is not close to the problem can be unplugged, sometimes because the dust is more, here need to clean up the slot and eraser and other tools to clean up the display card. For the graphics card overheating, you can install a small fan or the chassis to place ventilation, the graphics card overheating caused by the abnormal color is often just on the boot time is relatively normal, after a period of time to start Yarse.

　　Wiring problem:

The connection cable between the monitor and the video card. All the color information on the video card is always a data line passed to the monitor, if there is a problem here will cause the three-color missing or abnormal color. So consider a different line to try.

　　Line interface pin PROBLEM:

This is the problem I have encountered. The lack of a red monitor problem has plagued me for a long time, I used all the above methods have not been resolved, the last time in the group chat, Comrade Lotian let me see if the card interface at the needle broken. I pulled the data cord and checked, and sure enough, one of the needles was severely bent and not inserted into the pinhole. Later, with a small tweezers straight over to find the display color all normal, missing red and back.

On the internet to see a lot of people have encountered a display color abnormal, or lack of red, green, blue three color in one of the problems, but the solution is generally so several.