Solution to Win7 monitor color abnormality

We know that various problems will occur after using the computer for a long time. The most common one is the monitor problem. Many users have encountered abnormal monitor color. So if you also encounter Win7 monitor color What to do if an exception occurs? Let’s take a look at the practical solutions.

What to do if the Win7 monitor has abnormal color:

Common monitor failure conditions are as follows:

1. There is no prompt at startup, and the monitor often runs out of power.

2. The identifier on the monitor screen is relatively unclear.

3. There are pigment spots on the monitor.

4. The display produces wavy colorful patterns.

5. The monitor smells bad.

6. There is a continuous "pop-pop" sound from the monitor.

7. Under certain applications or devices, the screen flickers, becomes dark (or even freezes), has overlapping images, freezes, etc.

8. The display lacks color, is defocused, and the display is excessive. Bright or too dark, there is a regression line.

9. An abnormality appears after awakening from sleep.

10. Some color distortion occurs on the monitor display.

11. The display scale is dim.

12. Display color cast, jitter or flip, display becomes blurry, screen flickers, etc.

13. The main parameters of the display cannot be set or changed.

14. The chroma or brightness contrast cannot be adjusted, or the adjustable range is small.

15. The screen size or position cannot be adjusted, or the adjustable range is small.

16. The monitor gradually becomes normal. After using it for a while, the background color of the screen turns white. Turn off the monitor. After a while, it turns on again and everything becomes normal again.

Display color cast, display flickering, display color abnormality:

1. When the display has an overall color cast, it is mainly caused by the codec in the display. There is a problem with the power circuit,

2, or some small capacitors are discharged, causing the cathode tubes of the three primary colors to have insufficient power, thus causing one of the three color signals to malfunction.

3. Your monitor lacks green signals and only has red and blue signals, which causes the display to appear color cast.

4. Since it will return to normal soon, the possibility of damage to the monitor codec power circuit is low, which is likely to be related to the temperature of the system software.

5. If the graphics card and monitor socket Poor contact phenomenon, when the ambient temperature rises, the metal contact points will expand to restore the connection.

6. Solution: Connect the monitor to another server. If the fault disappears, it may be a graphics card fault.

7. If the fault persists, it may be a fault with the monitor itself or a fault with the monitor cable socket.

8. Mainly check whether the metal pin of the monitor cable socket is broken or bent. If it is not good, simply replace the monitor with a new cable and try again.

Display color shift:

1. Problem with the power plug or mobile phone charging cable.

2. Problem with the display picture tube (repair recommended).

3. Is there any problem with the graphics card or graphics card drive (try another one).

Flashing screen:

1. The refresh frequency should not exceed 85Hz and should be as low as 75Hz. The refresh frequency is too high.

2. There is something wrong with the graphics card or graphics card driver.

3. Are there any interference signals under the application conditions?

4. The voltage is unstable, the display itself is faulty, and the electronic components in the display's internal structure are desoldered, etc.

The diagnosis of common graphics card faults is as follows:

1. Poor contact of the graphics card:

Poor contact of the graphics card usually causes The computer cannot be turned on and there is an alarm sound or the system software is unstable and stuck.

The root cause of poor contact of the graphics card is mainly oxidation of the red gold finger of the graphics card, dust, poor quality of the graphics card or problems with the main chassis partition, etc.

For the poor contact caused by the oxidation of the red gold finger, you can use an eraser to scrub the red gold finger to deal with it; for the bad contact caused by dust, it can generally be dealt with after removing the dust.

For poor contact caused by the quality of hardware configuration, it is usually checked by the replacement method, and the replacement of the graphics card is generally used to solve it.

For the poor contact phenomenon caused by the main chassis partition problem, usually the graphics card cannot be completely inserted into the graphics card memory slot. You can choose to replace the main chassis to eliminate it.

2. Compatibility issues:

Compatibility mode failure usually causes the computer to fail to boot and an alarm sounds, the system software is unstable and stuck, or the display screen detects abnormal noise and other faults.

Graphics card compatibility failure usually occurs when the computer is just installed or updated. It is often caused by compatibility issues between the motherboard and the graphics card or the motherboard slot and the red gold finger of the graphics card cannot be fully contacted.

Graphics card compatibility mode faults are usually checked by replacement. Generally, replacement of the graphics card is used to eliminate the fault.

3. Damage to electronic components of the graphics card:

Damage to the electronic components of the graphics card usually results in the computer being unable to boot, the system software being unstable and stuck, and the screen flickering.

Damage to graphics card electronic components generally includes damage to the graphics card processing chip, damage to the graphics card BIOS, damage to the independent graphics memory, damage to the graphics card capacitor or damage to the field effect tube, etc.

For graphics card electronic component damage, it is generally necessary to carefully measure each signal in the graphics card power circuit to identify the damaged electronic component. After finding the damaged electronic component, it can be replaced.

4. Graphics card overtemperature failure:

Because the graphics card processing chip generates a lot of heat when running, it must have better thermal conductivity standards. If the fan is damaged, the graphics card will overheat. Can't work normally.

Overtemperature faults of graphics cards often cause system instability, stuck, screen flickering and other faults. If the graphics card overheats, just replace the fan.

5. Graphics card driver failure:

Graphics card driver failure often causes system instability and stuck, screen flickering, text and image graphics incomplete and other faults.

Graphics card driver failures mainly include graphics card driver loss, graphics card driver compatibility issues with the operating system, graphics card driver damage, and the inability to install the graphics card driver.

For graphics card driver problems, the first step is usually to go to the "Network Adapter" to check whether there is driver software for the graphics card. If not, just reinstall it.

If there is, but it is on the graphics card driver! ", indicating that the graphics card driver is not assembled, the driver software version number is incorrect, the driver software is compatible with the operating system, etc.

Generally delete the graphics card driver and reinstall it. If it is still there after installation!", you can download a new one version of the driver software installed.

If the graphics card driver cannot be installed, there is usually a problem with the driver software or a problem with the registry file.

6. CMOS setting failure:

CMOS setting failure is caused by incorrect setting of relevant options indicated in CMOS.

Common CMOS setting faults mainly include: motherboard with integrated graphics, the graphics shield option in CMOS is not set correctly.

Such as the "AGPDrivingControl" option setting is incorrect (usually "AUTO"),

The "AGPApertureSize" option setting is incorrect: "FASTWriteSupported" option setting issues, etc. .

The CMOS setting is incorrect. Generally, you can load the default setting BIOS value and change it.

7. Graphics CPU overclocking problem:

Graphics CPU overclocking problem refers to a computer failure caused by increasing the speed of the graphics card and increasing the output power of the graphics card during use.

After a problem occurs, you can repair the frequency to the factory default.

If necessary, it is recommended to install Driver Wizard 2008. After installation, use its automatic upgrade function.

It will automatically install and download the latest version of the driver, including network port, external sound card, Graphics card, USB, etc., eliminating the pain of finding and assembling.

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