My computer monitor looks blurry What is the reason for the W7 system

1. The problem of computer resolution has become better under the reset setting (make it smaller):

Steps: Right-click Properties to set Resolution;

2. It may be that the graphics card driver is not installed, or there is a problem (this is a hardware problem):

There are three main reasons why the display is blurry:

1. The variable value of the focusing potentiometer of FBT (line output transformer) is loose or shifted, resulting in the incompatibility of the focusing voltage added to the CRT, resulting in blurred screen;

2. The use of high ambient humidity makes the focus pin on the CRT tailstock plate corroded, and the phenomenon of blurring occurs when the CRT is just energized;

3. Due to the manufacturing process or the impurities in the CRT cone glass shell, electrostatic dust is generated between the focusing (focuse) pole and the acceleration pole (G2), forming a pole resistance and causing serious blurring of the screen.

Troubleshooting Method:

Generally, as long as you replace the ** new header can be troubleshooting. However, some people say that before inserting a new header, you should find a small piece of sandpaper to polish the pins that protrude from the back of the developing tube tail to remove the oxide layer. In the picture tube where the author has replaced the tube socket, some of them do have some oxides on the pins, but these oxides are missing from the original tube socket to the pins, and can be removed by sweeping with a small brush.

XP system**So far, the author has not seen the pin being oxidized, but due to excessive force and air leakage at the pin and damage to the picture tube, there have been a few cases, so we should not use sandpaper for sandpaper, so as not to cause "death" damage! If the replacement of the header does not work, it is necessary to replace the high-pressure bag, but the author recommends that you find a professional to do this work! In addition, some models of the video amplifier part of the circuit is more special, sometimes the failure will also cause the image to be blurred, but this time usually the brightness and line, field amplitude are also abnormal, for this kind of fault I recommend you to the professional to deal with!

If the color display is not a brand-name product and has been used for a very long time, then the author recommends that you find a professional electrical maintenance department to replace the pipe socket, so as to avoid being responsible for accidents such as air leakage in the neck.

Try adjusting the resolution? If it's an LCD screen, it's blurry if it's too high or too low.

<> 1. Reasons: 1. The main reason why the screen display is not clear is that there is a problem in the selection of the screen resolution.

2. Sometimes the screen resolution cannot be changed mainly because there is a problem with the graphics card driver, and the screen resolution needs to be changed after the driver is installed.

Second, the solution:

1. Open the "Control Panel Homepage" and select "Appearance and Personalization".

2. Click "Adjust Screen Resolution" in the "Display" bar.

3. After clicking, the "Change Monitor Appearance" window will appear, at this time, you should pay attention to whether there is a warning prompt, and you should change the screen resolution at this time.

4. Click the resolution option to adjust the resolution to the appropriate position in the pop-up drop-down menu, and generally select the recommended settings.

5. Click "Apply" after selection.

6. After clicking Apply, a prompt selection box will appear. Click Keep Changes.

7. Finally, click "OK", and find that the screen becomes clear and clear, and when there is no graininess, it means that the clearer screen setting is successful.

Summary. Hello, just describe, first of all, there are two possibilities, one is that you adjusted the resolution, and the other is caused by the computer's automatic recognition error.

Secondly, if you haven't moved the resolution, it is recommended that you press the monitor button, press the setting key, and then find the automatic adjustment, OK, after the computer automatically adjusts, it will be clear.

Then, if you have adjusted the resolution, it is recommended to adjust it back and adjust the best resolution, such as the resolution of the inch display is 1920*1080, and the resolution of the 24-inch display is 1920*1200. After that, just do the auto-adjustment above.

Why is my computer screen suddenly blurry?

Hello, just describe, first of all, there are two possibilities, one is that you adjusted the resolution, and the other is caused by the computer's automatic recognition error. Secondly, if you haven't moved the resolution, it is recommended that you press the monitor button, press the setting key, and then find the automatic adjustment, OK, after the computer automatically adjusts, it will be clear. Then, if you have adjusted the resolution, it is recommended to adjust it back and adjust the best resolution, such as the resolution of the inch display is 1920*1080, and the resolution of the 24-inch display is 1920*1200.

After that, just do the auto-adjustment above.

Hello, just describe, first of all, there are two possibilities, one is that you adjusted the resolution, and the other is caused by the computer's automatic recognition error. Secondly, if you haven't moved the resolution, it is recommended that you press the monitor button, press the setting key, and then find the automatic adjustment, OK, after the computer automatically adjusts, it will be clear. Then, if you have adjusted the resolution, it is recommended to adjust it back and adjust the best resolution, such as the resolution of the inch display is 1920*1080, and the resolution of the 24-inch display is 1920*1200.

After that, just do the auto-adjustment above.

Finally, common phenomena, minor problems.

The computer display is not clear, and the same screen, the display icon is larger and has raw edges, usually because the system resolution is not adjusted to the appropriate size.

Consider whether the screen cable is aging: Check whether the screen cable is the old VGA cable shown in the picture, check the aging of the cable, buy a new VGA cable or use other types of cable supported by the display and replace it.

In this case, it could be a broken monitor or a problem with the graphics card. ......The specific situation can only be determined after investigation.