Screen
The flower screen has carved and decorated screens. Tang Lu Guimeng's "Crane Screen" poem: "The people in the time spent a lot of time on the flower screen, and the loneliness is the fetus." Qianshu Weizhuang "Shangchun Ci": "The beauty of the Jinlou flower screen is on, and the morning makeup is not reminded."
LCD flower screen
The so-called flower screen is usually an image on the screen, but the image is covered with dots, flakes, and mosaic interference. The parts that cause such failures are: TTL or LVDS signal forming parts of logic boards, LCD screens, and computer boards (small screens are mostly TTL signals, and large screens are mostly LVDS signals, hereinafter referred to as LVDS signals).
Computer screen flicking
Flicking screen meaning
It means that there are stripes, spots or color blocks on the computer screen that are different from the normal color, or the position is reversed or disordered, and the screen Jitter, distortion, etc.
Monitor flickering is an extremely common failure. There are many reasons for it. The failure phenomenon caused by different reasons is also different, and the solutions are also different. In the text mode, the flowered screen is characterized by chaos of characters, and in the graphic mode, it is usually shown as layered graphics, and horizontal stripes may be generated due to internal or external interference.
Reasons for the Huaping
1. The display produces horizontal stripes: There are two main reasons: 1) External interference, such as electric sparks or high-frequency electromagnetic interference near the use site of the display, which will cause the display of the display to produce white horizontal stripes. Solution: Avoid using the monitor in this situation; 2) Internal interference, this interference will make the display screen of the monitor appear black horizontal stripes, in this case, you can open the case to check whether there is poor contact inside the monitor If there is any problem with the output end of the power supply or the output transformer, etc., because the cause of this situation involves more professional technology, it is better to ask a professional to repair it.
2. The monitor resolution setting is incorrect and causes the screen to be blurred: When the monitor resolution setting in WIN3.X and WIN95 is not correct, the screen failure may occur when starting Windows, that is, the screen layering, jitter, serious or even black screen and crashes. Solution: Enter the SETUP of WIN3.X or enter the safe mode of WIN95, and reset the display mode of the monitor.
3. The display card conflicts with the Chinese system: In this case, a screen will appear when you exit the Chinese system, and there will be no response to random keystrokes. It is similar to a crash. Solution: Enter "MODE C080" at this time to solve it.
4. The main control chip of the graphics card has a poor heat dissipation effect: this will also cause the phenomenon of glitches. Solution: improve the heat dissipation performance of the graphics card.
5. Video memory speed is too low: When the video memory speed is too low to match the speed of the host, it will also cause screen blur. Solution: Replace the video memory with a higher speed, or reduce the speed of the host.
6. Video memory damage: When the video memory is damaged, the phenomenon of garbled and chaotic characters will appear when the system is started. Solution: The video memory must be replaced.
7. Virus reason: Fuzzy screen will also appear when some viruses occur. Solution: Use anti-virus software to kill the virus to eliminate it. Disposal of the special failure of the display caused by the failure of the capacitor. Failure phenomenon: An AOK color display fails after a period of use. After the computer is turned on, the monitor has no display. After about 5 minutes, the monitor gradually lights up, but the right part of the screen is darker with a horizontal black line, and then it slowly turns to the normal state.
8. When the graphics card GPU is soldered, in many cases, the computer screen failure appears.
9. Large-scale 3D software: When the screen is running large-scale 3D software, it appears during the game, first check whether the graphics card has insufficient heat dissipation during the big data processing. Then you can choose to try to update the latest version of the driver, or choose the driver recommended by the game manufacturer, because the incompatibility of the graphics card driver and the program itself causes the game screen to be unsmooth, and screen freezes and crashes are common conditions. In such a situation, don't be impatient and don't panic, as long as you find a driver that suits you, everything will be solved.
10. Driver problems
Because the driver of the laptop is not written by the graphics card chip company, the chip company provides the chip, the driver problem is left to It is written by the laptop manufacturer itself, so there may be some compatibility issues. At the same time, the release time of the laptop drive level is very slow, usually every six months or one year. When solving it, you can first try to see if other 3D programs have the same phenomenon of blurred and black screens. If the problem disappears, it can be considered as a compatibility problem. At the same time, damage or loss of the driver files may cause false freezes, frozen screens, and black screens when the graphics card is running. To solve this problem, you only need to uninstall the original driver and reinstall the driver.
11. Third-party software
After the overclocking software is turned on, if the video memory frequency exceeds the head, it is normal for the screen to have texture errors and screen blurring. In severe cases, it can cause crashes. Because the video memory works at an abnormal frequency, a higher frequency will only make its work unstable, especially when data is read and written, errors are prone to occur. At this point, just lower or restore the default frequency.
Of course, the above mentioned is the most basic method to troubleshoot the flickering screen of a laptop. If the fault persists after debugging, you should start with the hardware. According to personal experience, the phenomenon of laptop screen flickering is generally a hardware problem, while software problems are more compatible in terms of compatibility.
13. The LCD signal line is in poor contact
This is the first step to check the hardware. Flickering and black screens appear irregularly, or the fault disappears after tapping and pressing the keyboard surface, which is often the result of poor contact between the LCD signal line and the interface. Simply reinsert the corresponding interface problem to eliminate it.
14. Oxidation reaction
Generally, this is the result that the notebook computer is prone to appear in the harsh environment or after long-term use. When handling, first remove the LCD Take out the signal line interface, wipe the golden finger at the joint with a rubber, and scrub the interface with cotton moistened with a small amount of anhydrous alcohol. The purpose is to remove poor contact caused by oxidation or dirt. After processing, reconnect the line and check whether it is plugged in tightly.
15. Video memory problem
Because some notebook computer graphics cards use dynamic video memory technology (ie DVMT, Dynamic Video Memory Technology), use part of the memory capacity Configured as graphics card memory. In the actual operation process, the internal structure of the memory may be damaged. When this part is selected as the video memory, errors often occur during data exchange between the chip and the graphics card, which results in a blurred screen, a black screen, and even a crash. In this case, you can use the replacement method to replace the memory of the same specification for inspection. Of course, if the video memory is integrated on the motherboard, it can only be repaired
16. Capacitance problem
RAMDAC (Random Access Memory Digital-to- Analog Converter) and filter capacitor are two important factors that determine the quality of the graphics card. The working quality of the entire filter circuit and the quality of the capacitor are linked to each other. When inferior capacitors are used or the capacity of the capacitor itself is reduced, it is no wonder that the screen is blurred or black. When solving, you can first check out the problematic capacitor with a multimeter, and then replace it with the same specification, so that the problem can be solved.
Huaping solution
For the built-in graphics card, our processing method is relatively simple and generally can be solved.
1. Unplug the memory and wipe the gold fingers of the memory with alcohol and an eraser. If you wipe it with an alcohol cotton ball, remember to put it on the motherboard for more than 1 minute before loading it into the motherboard
2. If the above mentioned still cannot solve the problem of your graphics card screen, it is recommended to replace the memory stick to solve it! But I do not recommend using Kingston because of the simple fact that there are too many fakes, in case it is not conducive to system problems! Generally, after replacing the memory, use the official version driver installed as the official version of Microsoft WHQL certification. Generally speaking, your problem can be solved.
The solution to the discrete graphics card is relatively simple as follows:
1. Uninstall the driver of the integrated graphics card! Installed as the official version of the driver that has passed the Microsoft WHQL certification. You can go to Drive House to find!
2. In order to ensure that the system does not have any interference from viruses and rogue software, it is recommended to completely kill the virus!
3. If updating the graphics card driver certified by Microsoft alone cannot solve the problem of your discrete graphics card's flickering screen, it is the physical quality of the graphics card! You can find the manufacturer to request the replacement. If you do not want to spend money on the replacement, I will give you a tip!
It is to open the game when the graphics card screen appears! (My graphics card also has a problem with the screen) Open a running kart and enter the normal game and then close it! Or open CS and close it, if it doesn't work, open it and close it again! It really doesn't work, only restarting the computer.
4. The virtual welding of the graphics card GPU also causes the computer (graphics card) to lose the screen. Use a hot air gun, unplug the small mouth blowing head, blow directly with its own large diameter, and gently push the GPU while blowing. The chip, wait until it can be gently pushed, loosen to the extent that it can return to its place automatically, remember one thing, do not press down, otherwise the tin under the GPU will be flattened and it will cause a short circuit failure.
Note: The graphics card GPU is the big IC under the heat sink.