The notebooks, video games, network boxes and other devices produced in recent years are basically equipped with the latest HDMI high-definition interface, and for families who still use old TVs, projectors and other devices with VGA interface, they want to have HDMI interface. The device is connected to a large-screen TV and can only be converted by HDMI to VGA Video converter adapter.
However, many people often encounter problems during use, such as poor signal, black screen, intermittent picture, and even no display. These converters are not familiar enough, and there is no way to start problems. Here is a comprehensive HDMI to VGA use often encountered problems, hands-on teach you to eliminate HDMI to VGA Video converter adapter common faults.
When using HDMI to VGA converter to encounter intermittent black screen, disconnected intermittent, incomplete display, etc., how to solve it better?
First of all, whether the power supply for HDMI to VGA is insufficient
In most cases, when the HDMI to VGA converter is used, the signal is unstable, the intermittent black screen, etc., basically due to insufficient power supply to the interface. Each device has different power supply requirements, so some connected devices may need to be connected to the power supply line. For example, when a user converts a home device with a green HDMI to VGA converter, there is no problem when the Huawei box is used to connect to the TV, and the picture is also very clear. But when I connected it with a laptop, the signal was not stable, and the picture was intermittent. After connecting the power supply line, it was basically normal.
In addition to the device itself, insufficient power may also be associated with the VGA cable connected to the VGA side of the converter. Perhaps few people will go to the details. Here is a brief explanation. There are currently 3+4, 3+6, 3+9 VGA cables with different pins on the market. 3+N says the number of cores of the VGA line (the shield is not counted), 3 stands for the red, green and blue color data lines, and the 4/6/9 of the latter represents the number of cores, and the total number of cores is completely Instead of a small number of cores, when we connect to a VGA converter, the VGA cable with a small number of cores is also more prone to insufficient power supply resolution.
Therefore, the lack of power supply sometimes has a certain relationship with the VGA cable you use. Try to select the multi-core VGA cable to ensure better connection of the device. STC High Resolution Monitor VGA Video Cable is your best choice.
Second, check the interface and VGA cable
Some people may have their own device interface aging, or the line (plug) is not aware of the problem, but also a strong solution to the problem. When there is a problem, we try to eliminate the most basic equipment itself. This is the basic.
Check to see if your TV screen is switched to the HDMI source; check if your device interface is normal; check if your cable is bad; try replugging the cable multiple times.
Another point is how long you use the VGA cable. Generally speaking, the line within a short distance is better, because the longer the line is, the longer the signal loss is when the length is reached. Therefore, if you use a VGA cable that is too long, it is not excluded that the VGA line itself causes signal attenuation. Play a good signal transmission, then try a short line directly
Again, see if the resolution of the device is correct.
When using HDMI to VGA converter, many people may ignore the resolution problem. In general, the hdmi output frequency of the PS3/PS4 is relatively high, so if an uninterrupted black screen appears after connecting to the TV through the HDMI to VGA converter, it will return to normal after a while, and it may be overclocked. Adjust the frequency of the output device to TV support or lower resolution.
For example, the notebook is 1920*1080 and the display is 1280*720. In this case, the tuning resolution is stable. It should be remembered that the resolution of the HDMI device cannot be higher than that of the display device, otherwise it will cause overclocking, resulting in unstable display or other problems that cannot be displayed normally.
There is also a situation, the problem of computer graphics driver
Because if the computer graphics driver is not up-to-date, it is very likely that it will not recognize the signal, or various incompatibilities, including compatibility with HDMI to VGA devices. Updating the graphics card driver is very simple, download the driver life or drive the wizard directly on the Internet, and then automatically detect the update.
For ordinary users, they are not familiar with these converters. Many times, once there is a problem with the use process, we can't replace it with various decodings, and we can't disassemble it to see if it is a problem with the chip inside. Eliminate the solution one by one by the most basic method. Before using the STC HDMI converter, the author was completely arrogant about this, but after buying it, because of various problems in the middle, and then looking for STC customer service consultation, they patiently answered one by one, perfect Help me solve these problems, and gradually understand these products, like this product and service! I also hope that these simple tips can help more friends like me.
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Post time: Mar-07-2019