Shulou(Shulou.com)05/31 Report--

Hello everyone, Lin Fei to answer the above questions, what is the computer screen, what is the computer screen, many people do not know, now let's take a look at it!

Notebook screen is also one of the common faults in notebook maintenance, and its incidence is second only to notebook boot black screen. The common faults are snowflake, vertical bar, irregular, crash black screen. It's usually fine. Suddenly one day I turned on the computer and the screen turned on. This situation is very annoying. There are many reasons for laptop screens, so what are they all about? What about the laptop screen? Let's take a look at it with Benshaw.

The reasons for the notebook screen

1. Driving problem

Because the driver of the notebook computer is not written by the graphics card chip company, after the chip company provides the chip, the driver problem is written by the notebook computer manufacturer, so there may be some compatibility problems. At the same time, the release time of laptop driver is very slow, usually updated half a year or once a year. To solve the problem, you can first try to see if other 3D programs have the same black screen phenomenon. If the problem disappears, it can be considered a compatibility issue. At the same time, the damage or loss of the driver file may lead to false death, broken screen, black screen and other problems when the graphics card is running. To solve this problem, simply uninstall the original driver and reinstall the driver.

two。 Third-party software

After the overclocking software is turned on, if the display memory frequency is over, it is normal for the picture to appear mapping errors and blurred screen phenomenon, and even cause a crash in serious cases. Because the video memory works at an abnormal frequency, a higher frequency will only make it unstable, especially when reading and writing data. At this point, we just need to reduce or restore the default frequency.

Of course, the above is the most basic way for us to troubleshoot the laptop screen. If the fault still exists after debugging, we should start with the hardware. According to the author's personal experience, the phenomenon of laptop screen is generally caused by hardware problems, while there are many software problems in compatibility.

Poor contact of 3.LCD signal line

This is our first step in checking the hardware. Irregular appearance of blurred screen, black screen, or the disappearance of the fault after gently pressing the key surface is often the result of poor contact between the LCD signal line and the interface. We just need to reseat the corresponding interface to eliminate the problem.

4. Oxidation reaction

Generally speaking, this is the result that laptops are easy to appear after being used in a harsh environment or for a long time. When processing, we first remove the interface of the LCD signal line, wipe the gold finger with a rubber, and then scrub the interface with cotton stained with a small amount of anhydrous alcohol to remove the bad contact caused by oxidation reaction or dirt. After processing, reconnect the wire and check whether it is plugged in or not.

5. Memory problem

Because the video cards of some laptops use DVMT (dynamic video memory technology), some memory capacity is used to allocate the memory of the video cards. In the actual operation, the internal structure of the memory may be damaged. When the selected part is used as the video memory, the data exchange between the chip and the video memory often goes wrong, resulting in blurred screen, black screen and even crash. In this case, we can use the replacement method to replace the same specification of memory for inspection. Of course, if the graphics card memory is integrated on the motherboard, we can only send it for repair.

6. Capacitance problem

Ramdac (random access memory digital-to-analog converter) and filter capacitance are two important factors that determine the image quality of the video card. However, the working quality of the whole filter circuit is related to the quality of the capacitor. When using inferior capacitors or reducing the characteristic capacity of the capacitors, it is not surprising that there is a blurred screen or black screen. When solving the problem, we can first use the multimeter to check the fault capacitance, and then replace it with the same specification, so that the problem is solved.

Second, the solution of notebook screen.

If the monitor is on, first check the heat dissipation of the video card, touch the temperature of the memory bar with your hand, and check whether the fan of the video card is off. Then check the slot of the video card on the motherboard for dust, check whether the gold finger of the video card is oxidized, then clean the dust according to the specific situation, wipe the gold finger with an eraser and polish the oxidized part. If there is a problem with heat dissipation, replace the fan or install a radiator on the video memory. Or enter the BIOS to see if the voltage of the AGP is stable at about 1.5V

If you are playing games or 3D, you can try to change the graphics card driver to another version after eliminating the heat dissipation problem, because the video card driver may not be compatible with the program itself, or it may be the BUG in the driver.

If the graphics card is still in a blurred state after the above method, you can try to refresh the BIOS of the graphics card and go to the home page of the video card manufacturer to see if there is an updated BIOS download. For some miscellaneous graphics cards, you can try to use the BIOS of large manufacturers to swipe your own graphics cards. It is important to note that refreshing BIOS is risky, and the above methods are based on the fact that your graphics card is not under warranty. If your graphics card is under warranty, it is best to send it for repair as soon as possible after troubleshooting the software.

After reading the introduction above, I believe we all know the reasons and solutions of the notebook screen. Generally speaking, when you encounter the screen, you must first find out the cause, and then prescribe the right remedy to the case. If you really don't know what's going on, look for after-sale maintenance. The above content is like the reasons and solutions of the notebook screen introduced to you by Bian Shaw today. If you want to know more, please continue to follow this site!

At the end of this article, I hope it will be helpful to you.

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