It may be that the video cable between the monitor and the host is connected incorrectly or the video cable is loose. The computer monitor has a black screen and no signal. , no signal input. The specific solution to the black screen with no signal on the display is as follows: For display problems, first power on the computer display separately to see if the display light can light up normally. If the display is damaged, please replace it in time.
The display cable is not plugged in properly or is loose. Check whether the display cable behind the monitor and the back of the chassis is loose. If you have a discrete graphics card, check to see if it is plugged into the integrated graphics port. Try connecting the computer to a different monitor or TV to determine if the monitor is faulty.
It may be that the cables of the monitor and various accessories are not firmly connected to the host; it may also be that the computer cannot recognize it due to a system bug. You can try to force restart the computer and use the options to repair the system.
The computer is turned on but the screen does not light up: If the indicator light of the monitor does not light up at all, it means that the monitor is not powered on. If the monitor light flashes, it means the monitor is not receiving the signal from the host. If the display still does not light up after replacing the new data cable, the problem lies with the host.
If the host indicator light is on or off, the screen is not powered on (the power indicator light is not on) or it is powered on but has no signal or displays "no sighal", the former means that the power supply is blocked or the connection is in poor contact, the latter Usually the memory module has poor contact.
It may be that the monitor and the connecting cables of various accessories are not firmly connected to the host; it may also be that the computer cannot recognize it due to a system bug. You can try to force restart the computer and use the options to repair the system.
First check whether the power is on and whether there is any problem with the graphics card, etc. Enter the system, safe mode, and check if there is a problem with the graphics card driver. These may cause problems.
The host is started, but the display, keyboard, and mouse do not light up. It may be because the computer memory is not tightly plugged in, or the gold finger is oxidized, the motherboard button battery is discharged, or the monitor and the motherboard video cable are incorrectly connected.
It may be that the monitor and the cables of various accessories are not firmly connected to the host; it may also be that the computer cannot recognize it due to a system bug. You can try to force restart the computer and use the options to repair the system.
The host is turned on but the display does not light up when the computer is turned on. This is a common computer fault. There are many ways to solve this problem.
The second situation is that there is something wrong with the monitor cable. In many cases, it is because the data cable of the monitor is not plugged in properly, causing the signal to not pass through, the monitor to not light up, or the data cable to malfunction. The third situation is that the host does not show the generation of the signal. In this case, the problem often lies with the graphics card.
The reason is that the monitor is powered off or the monitor data cable is in poor contact.
It may be that the video cable between the monitor and the host is connected incorrectly or the video cable is loose. The computer monitor has a black screen and no signal, and there is no signal input.
At this time, you need to find the cause and solve it. The following are several reasons that may cause the computer monitor to not light up: Power failure: The power supply is the core component of the monitor. Once the power supply fails, it will cause the monitor to not light up. .
1. First check whether the power is on and whether there is any problem with the graphics card, etc. Enter the system, safe mode, and check if there is a problem with the graphics card driver. These may cause problems.
2. It is mainly caused by the inconsistency between the settings in the BIOS and the actual hardware data. It can be divided into the following reasons: there is actually no floppy drive or the floppy drive is broken, but there is a floppy drive set in the BIOS, which causes You have to press F1 to continue.
3. The computer is turned on but the screen does not light up: If the indicator light of the monitor does not light up at all, it means that the monitor is not powered on. If the monitor light flashes, it means the monitor is not receiving the signal from the host. If the display still does not light up after replacing the new data cable, the problem lies with the host.
4. When the computer is turned on, the host is turned on but the display does not light up. This is a common computer fault. There are many ways to solve this problem.
5. The reason why the computer display does not light up but the host computer is probably turned on is that the memory module is loose. When the memory module is loose, it will also cause the computer to fail to start normally. We only need to open the side panel of the chassis, pull out the memory module, and then reinstall the memory into the memory slot.
6. Solution: The first thing to check is whether the connection is normal. It is likely that the wire connecting the screen is loose. If it is indeed a poor contact, just find the wire connecting the screen and plug it in. If there is a problem with the line itself, just replace it with a new one.
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