How to solve LCD screen display

Many of my friends encountered the problem of LCD screen display when using LCD. Based on my own maintenance experience, I have summarized the following methods to solve the problem of most LCD screens (in actual use, it is best to follow this process to gradually eliminate them ).
First: Check whether the connection between the monitor and the video card is loose. Poor contact, resulting in "clutter", "Miscellaneous" shape of the screen is the most common phenomenon.

Second TRICK: Check whether the video card is too frequently. If the video card is used too frequently, irregular and intermittent horizontal lines may occur. In this case, the overfrequency range should be appropriately reduced. Note: you must first reduce the memory frequency.

Third TRICK: check the quality of the video card. If the problem occurs after the video card is changed and the first and second moves fail, check whether the anti-electromagnetic interference and electromagnetic shielding quality of the video card have passed. The specific method is to keep some components that may produce electromagnetic interference away from the installation of the video card (such as hard disk) and check whether the screen disappears. If it is determined that the electromagnetic shielding function of the video card is not enough, you should change the video card or make a self-made screen cover.

Step 4: Check whether the resolution or refresh rate of the monitor is set too high. The resolution of the LCD is generally lower than that of the CRT display. If the resolution exceeds the optimal resolution recommended by the manufacturer, the screen may appear.

Step 5: Check whether an incompatible graphics card driver is installedProgram. This situation is often overlooked, because the speed of the graphics card driver is getting faster and faster (especially the NVIDIA graphics card), and some users can't wait to install the latest version of the driver. In fact, some of the latest drivers are either a test version or a version optimized for a specific graphics card or game. Using these drivers may sometimes lead to the appearance of the screen. Therefore, we recommend that you try to use a Microsoft-certified driver. It is best to use the driver provided by the video card manufacturer.

Tip 6: if the problem persists after using the above five tactics, it may be the quality of the monitor. In this case, replace other monitors for testing.

Reference:

Http://www.365jia.cn/ask/question/show/id/7064