A flashing white line appears underneath the computer display

There are many problems that affect the display of the monitor:

1.The monitor is damp, and your laptop needs to run in a dry environment for the monitor to run well.

2.It may be that there is your mobile phone nearby,**, audio combinations, and other electronic components with electromagnetic fields, and their magnetic fields may cause problems with your display.

3.There is a problem with the contact between the laptop monitor and the body, because it is a notebook, and there may be problems when it is often switched on and off.

As for the issue of warranty, it is generally possible, and there should be a warranty card when you buy a computer, and if you have a warranty card, you can repair it. As long as the laptop is not unsealed by itself, there is nothing to do if the manufacturer's seal is removed, and if there is no warranty card, it will probably cost money.

Most of the time it's a problem with the LCD screen.

Change the resolution of the screen and see if you change the others, or it may be a problem with the graphics card driver.

As for the warranty, a dead horse should be a live horse doctor - regardless of whether he issues an invoice or not, take the receipt and warranty card to the seller, and take at least one of the two.

The display is likely, but it may also be, the data cable connecting the computer and the monitor is not connected, and it may be a problem with the graphics card.

It should be a splash screen.,Take it to the place where you bought it.,Just let him change a part.,As for the warranty or spending money to repair.,It's his problem.,The splash screen is not a problem I think.。

It's not the monitor's problem, it's the fault of your cable, and the cable that he's giving you is broken, it's the cable that plugs the monitor into the back.

In view of the problems you encounter, the following suggestions are given, and I hope your problems can be solved smoothly:

Please also confirm that there is a white line flashing at the bottom of the screen, and whether it is out when you turn on the phone and see the logo.

In this case, if it is there as soon as the machine is turned on, it is recommended that you send it directly to the service center for testing, which should be the hardware of the machine itself.

If the problem occurs after entering the system, it is recommended that you try to reinstall the graphics card driver of the machine first, and you are sure.

Recognize whether the machine has added memory or changed the hardware, if so, remove the added memory and replace it with the original factory.

Accessories to try. If the above methods have been tried and still do not work, it is recommended that you take the machine to the service center for specific testing.

Take the receipt and warranty certificate to go to the warranty that can be guaranteed, it doesn't matter! ~

A new computer, warning, in this case, it is generally caused by moisture or poor contact on the internal park, this kind of hardware problem can not be repaired, and it can only be replaced with a new one after it is broken.

Cause.

1. Subject to external interference.

Cause. 2. Subject to internal interference.

Cause. 3. The service life of the display is too long.

Cause. Fourth, the display resolution is set improperly.

Hello dear! According to your problem: If you have a lot of black lines flashing on your computer screen, it could be caused by the following:

1.Monitor failure: The computer monitor itself may be faulty, such as damage to the monitor circuit board, damage to the monitor driver board, etc.

These issues may cause the display to be incomplete, flickering, black lines, and more. 2.Graphics card issues:

There may be a problem with your computer's graphics card, such as corrupted graphics card drivers, video memory failures, etc. These issues may cause the computer to display abnormally, including incomplete display, flickering, black lines, and other problems. 3.

Signal interference: If you are using a monitor with an analog signal, you may be interfered with by other signals, such as TV signals, cell phone signals, etc. These distractions can cause problems such as flashing black lines on your computer screen.

4.Hardware connection problems: There may be problems with the hardware connection of the computer, such as poor contact of the monitor cable, loose graphics card interface, etc.

These issues may cause problems such as unstable display signals, flashing black lines, etc. If you have problems such as flashing black lines on your computer screen, it is recommended that you first troubleshoot hardware connection issues, such as checking whether the monitor cable is in good contact and whether the graphics card interface is loose. If the connection is working, you can try updating the graphics driver or replacing the monitor to test.

If the problem persists, it is recommended that you contact a professional technician for repair or replacement hardware.

There is a travel line on the computer screen that keeps flashing for the following reasons:

1. There is a problem with the connecting cable. A connecting cable needs to be replaced.

2. The connecting cable of the limb stool is not plugged in. You need to check the socket and plug the cable back in.

3. Display problems. The display is faulty and needs to be repaired.

4. Problems with the graphics card of the host. You need to reinstall the graphics driver or replace the graphics card.