A white bar appears on the computer monitor, and the computer turns on with a white horizontal bar

First, determine whether it is a display signal problem or a display problem.

1. Connect the monitor to another computer host to see, if there is no white line, then there is no problem with the monitor.

You can try updating the graphics driver on the host computer and then changing the data cable on the monitor.

2. If it is still the same on other computer hosts, it proves that the display screen of the display is broken, and the display screen needs to be replaced to solve this problem.

This is a fault of the LCD (Liquid Crystal Display);

If the image is abnormal in the form of vertical bars (vertical gray dotted line, solid light line, and normal dark line) on the LCD screen, the source driver IC is damaged or soldered.

If it is an abnormal image in the form of horizontal bars (horizontal gray dotted line, solid light line, and normal dark line), the gate driver IC is damaged or soldered.

Whether it is the fault of the above circuit, it must be sent to the professional LCD maintenance part for repair, and the maintenance fee is about 120 (virtual soldering) and 200 (IC damage);

If it is within the warranty period, it should be sent for repair in time.

Hello! Is there an occasional white line or out of the line has always been, if it occasionally appears, there may be a problem with the screen line, the service station is to change, if it is a problem with the screen, it is not artificial, but also to replace it, you go to the service station to detect it!

Try to change the frequency of the system display, it may be that the frequency of the system is a little different from the frequency of the display.

If you don't enter the system, it's normal.

It's a field scan issue.

There is nothing wrong with repairing the TV.

Some systems are garbled, what are you afraid of, buddy!

Only the B product display is prone to such a problem, don't you know if you bought it when you bought it or after using it for a period of time?

This problem does not seem to be easy to fix.

If a white bar appears on your computer when it turns on, it may usually be caused by the following reasons:1Hardware failure:

It could be that your hardware is malfunctioning, such as a problem with your hard drive or memory. 2.Software interrupts unexpectedly or does not shut down gracefully

In the process of installing or upgrading the operating system, drivers and other software, the computer is shut down abnormally or interrupted unexpectedly, which may cause the computer to fail to boot the system normally, resulting in the appearance of white horizontal bars. 3.Driver or system file corruption:

If your computer's drivers or system files are corrupted, it can also cause a white bar to appear when you boot up. When you encounter this situation, there are a few steps you can try to troubleshoot the issue:1

Check whether the hardware of the computer is normal, for example, there is no problem with the hardware equipment such as hard disk, memory and graphics card. 2.Try using a Windows repair disk or reinstalling the system.

3.To check whether the driver and system files are normal, you can use the built-in SFC scanner of Windows to detect and repair them. If none of the above methods can solve the problem, it is recommended that you contact the computer manufacturer or professional IT maintenance personnel for diagnosis and treatment.