If your Hisense TV is connected to the computer through VGA and everything is normal, but it still displays "no signal", there may be several reasons:
1. Poor connection of VGA cable: Please ensure that the VGA cable plug is firmly connected to the interface between the TV and the computer.Try reinserting them once to ensure that they are fully inserted.
2. Input source selection error: check the input source option in TV menu settings.Verify that you have selected the correct input source (VGA or PC).
3. Resolution mismatch: In some cases, there may be resolution mismatch between the TV and the computer.Try lowering the screen resolution of your computer and reconnect.
4. Driver problem: Updating the graphics card driver on your computer may solve this problem.Visit the video card manufacturer's website, where you can download and install the latest version of the driver.
5. Transmission mode setting error: In some cases, you need to manually change the transmission mode to make the VGA signal transmit normally.You can try to follow the instructions in the TV User's Manual.
6. Faulty hardware device: Finally, if the above methods do not solve the problem, it may be caused by faulty hardware device.At this time, it is recommended to contact the after-sales service department or technical support personnel for further diagnosis and repair.
To sum up, if your Hisense TV is connected to the computer through VGA and always displays "no signal", please check the above possible causes one by one and try corresponding solutions to troubleshoot.
First of all, how do you judge that the computer works normally? Secondly, whether the screen is blurry or achromatic or interfered by snowflakes. From a simple check, whether the video card has poor contact, and whether the signal line has poor contact. If it is really "fuzzy", it is likely that the reality device is at the end.ha-ha
It seems that there is a break in the data line. You can repeatedly rub the data line near the connector to see if it is normal. If it can be displayed normally, a new line should be used
What happens when you unplug all memory modules and start up? Unplug all memory modules, and there will be an alarm sound under normal conditions There should be something wrong with the motherboard
Try another data line. If it is normal, it is a problem with the data line;If it is still abnormal, try changing the display. According to your description, it should not be the graphics card.
