What s going on if the boot display doesn t turn on

Troubleshooting steps: 1. Sometimes after installing some software or hardware drivers, you find that after restarting, the computer cannot enter the system and the screen is black, which is the black screen of the notebook caused by the software.

If the black screen is caused by software, taking Windows 7 as an example, we can restart the machine and press the F8 key several times when booting up the system to bring up the system's boot options menu.

Once the System Boot Options menu comes out, select Enter Safe Mode. If we can enter the safe mode normally, we can delete the software or driver installed before the black screen in the safe mode. Then restart the machine and see if the laptop can fix the black screen issue.

Hardware-induced laptop black screen.

2, There is a sensor switch on some laptops, when we close the screen, the display will automatically turn off, so as to save power consumption. Some laptops are mechanically touched, such as when the screen is closed.

It's like a beginning to disconnect the power of the display. So at this time, we can check whether this switch on the notebook is aging and can't pop up, resulting in a black screen in the notebook.

3. The reason for static electricity, sometimes static electricity will cause the circuit of the notebook motherboard to be abnormal, resulting in no reaction on the screen after turning on the power supply. We can try to unplug the laptop's battery and power supply, and then press the power start of the laptop a few more times to let the machine release static electricity. Then connect the power supply, turn it on, and see if it can solve the fault.

4. The memory is loose or the memory has a hardware failure. There are several major components of a notebook computer, including:

CPU, motherboard, memory, graphics card. These parts are indispensable, as long as one of them has a problem, it will cause the laptop to not function properly, the most common is that the boot does not respond. In general, the probability of CPU and motherboard failure is relatively small, and it is more common for the laptop to fail to boot due to loose memory.

At this time, first remove the battery and power supply of the notebook, if it is not difficult to remove the computer, you can open the back cover of the notebook by yourself and reinsert the memory. After plugging in the memory, power it on again, start the machine, and see if you can solve the fault.

5. The LCD screen part of the notebook is faulty. There are some notebooks that are a little older, and this may be the case. Display components generally include displays, data cables, and some other small parts. If you have a desktop monitor, try plugging it into a laptop.

VGA display interface, and then switch the display to the VGA external display on the laptop. If you can switch to an external monitor, it means that there is a big problem with the display part.

6. The graphics card hardware is faulty, the graphics card is responsible for the source of all the display output of the computer, so it has a problem, and there is no display on the screen. If the graphics card is broken, we can't solve it ourselves, and we can only find the computer's after-sales solution. If the notebook is within the warranty period, it can be taken for free inspection and repair. Collapse.

It is possible that the connection between your host and the display is not well connected (especially if the interface is not plugged in), and there may be a problem with this connection data cable, so it will not be opened, so you need to reconnect the data cable, or replace the data cable.

Check whether the cable between the monitor and the main unit is loose.

Or if the fault is caused by poor hardware contact, it is recommended to perform the following operations:

1. Turn off the power, open the case, clean up the dust, especially the dust of the CPU fan, and check whether the CPU fan is rotating normally.

2. Power off, open the chassis, plug and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it).

3. Plug and unplug the graphics card, wipe the gold finger part with an eraser, and reinsert it tightly (the buckle should be buckled).

4. Unplug the power cord, cut off the motherboard button battery, wait for three minutes, and then reinstall the motherboard.

5. If the above operations cannot solve the problem, it is recommended to send it to the maintenance center.

Dear, hello, I'm glad to answer for you: There may be a variety of reasons why the display screen can't be turned on, and the following are some possible solutions:1

Check that the power plug and power switch are in good contact to ensure that the power cord is connected properly. 2.To check if the power socket is working properly, you can try plugging it into the socket to check if it is working.

Bury guess 3Check that the display is powered properly, and try connecting the display to a different power outlet or computer to check if it works. 4.

Check whether the display data cable is connected normally, and try to plug and unplug the data cable again to make sure it is well connected. 5.If none of the above methods can solve the problem, it may be that the display itself is faulty and needs to be repaired or replaced.

The solution to the display not turning on:

1. If the Keino computer is turned on normally, and the keyboard and mouse are both on, it means that the monitor has no signal input, check whether the monitor input selection is correct.

If none of the above works, check that the graphics card and memory are plugged in properly and determine if they are corrupted. A display is also commonly referred to as a monitor. A monitor is an IO device that belongs to a computer, i.e., an input and output device.

It is a display tool that displays a certain electronic file on the screen through a specific transmission device and then reflects it to the human eye. According to the different manufacturing materials, it can be divided into laughter: cathode ray tube display (CRT), plasma display PDP, liquid crystal display LCD and so on.

Liquid crystal, or liquid crystal, is a very special substance. It is both fluid like a liquid and has certain optical properties of crystals. Liquid crystal was discovered in 1888 by the Austrian botanist Reinitzer, is a kind of organic compound between solid and liquid, with a regular molecular arrangement, the arrangement of liquid crystal molecules has a certain order, and this order is very sensitive to external conditions, such as temperature, electromagnetic field changes.

Under the action of the electric field, the arrangement of liquid crystal molecules changes, which affects its optical properties, a phenomenon called electro-optical effect.

The reasons why the cong Yu device cannot be opened are as follows:

1. Power supply problem:

Check that the monitor is connected to a power outlet and that the outlet is working properly. You can also try replacing the power cord or using a different power outlet for testing.

2. Connection problems:

Make sure the monitor is properly connected to a computer or other device. Check that cables (such as HDMI, VGA, or DVI) are not loose or damaged. Try plugging the cable back in to make sure it's well connected.

3. Graphics card problem:

If it is a monitor connected to a discrete graphics card, you can check whether the graphics card is working properly. You can try connecting the monitor to another computer or using a different monitor to test if there is a problem with the graphics card.

4. Display failure:

There may be faults in the display itself, such as faulty switches, faulty backlights, or other hardware issues. Try connecting your monitor to a different device or trying to use a different monitor to troubleshoot issues with the monitor itself.

5. Driver problem:

Make sure that the display drivers on your computer are properly installed and up to date. You can try updating or reinstalling the display driver. <>