The boot screen dims after a few minutes, and the computer turns on for a long time The screen dims

Here are a few things you can do to get started:

1. Is the power supply properly and securely connected?

2. Is it an ATI graphics card that you are using, and the model is HD2400 or 2600? If so, you don't have to worry, this is caused by a defect in the graphics card, there is no good way to do it**, however, it will not cause damage to your computer including the host and monitor, but it will flicker for a period of time after booting, and after that, there will be no such situation.

3. Are there any interference sources around your computer? If you have one, remove it. For example, mobile phones, TVs, microwave ovens, ......

4. Is there any problem with the quality of your monitor itself? If you rule out the second case mentioned above, you can connect your monitor to another computer and try it, confirm that the monitor is faulty, and then you need to repair it.

Your screen may have auto-sensitivity. Turn on this feature, and the screen will automatically condition the brightness of the screen based on the brightness of the surroundings. Even if you drive to the maximum, it may only be 80% of your usual amount. To turn it up to the brightest, you have to turn this function off.

Different monitors do not have different methods. Mine is an ASUS notebook, and I press fn+a to turn it off.

If this is really the problem, take a look at the instructions for yourself.

Is your machine set to use mode?

Switch to energy-saving mode when powered on.

The problem with the graphics card should be solved by wiping the graphics card down and plugging it in!

It is possible that it is the reason for the graphics card, in addition to the failure of the monitor. The main reason for the flickering of the display is generally not the problem of the picture tube, but the unstable working conditions of the picture tube. Because CRT aging is progressive, there is no recurrence (i.e., flickering on and off?).

The working conditions of the picture tube are: filament voltage, focusing voltage, accelerating pole voltage, anode high voltage (more than 10,000 volts), generally flickering and dark, mainly in the accelerating pole voltage and anode high voltage are unstable. What you can do yourself is to adjust the accelerating pole voltage, ** find the line output transformer on the road board, there are two potentiometers on one side of it, the upper one is generally to adjust the focusing voltage, if the display has a blurred phenomenon, then adjust it; The next one is to adjust the accelerating pole voltage.

According to the phenomenon you mentioned, it is estimated that the contact of the acceleration pole voltage regulating potentiometer is poor (I have repaired many such faults), please mark the angle of the potentiometer (with a pen or something) in the case of power failure, and then rotate the potentiometer repeatedly to eliminate the phenomenon of poor contact, and then turn to the position where the mark was made. Then power on, (pay attention to safety, do not touch metal objects, operate with one hand), start the computer, and adjust this knob while observing the display until the brightness is satisfied. Generally, through this treatment, the problem can be solved.

In case it is caused by the instability of the anode high pressure, the maintenance process is slightly complicated, and it can only be handled by professionals. Be careful to operate safely.

There is also a mismatch between your monitor and your host, your host configuration is high, and your monitor is aging, this kind of problem will occur, if the conditions can, it is best to change a monitor, because this kind of problem can not be solved! Ruthless, brother!

Do you use an LCD monitor? I also have this phenomenon.,It's very bright when it's turned on.,It's suddenly darkened a little bit after turning on the machine.,Take a closer look.,It's not actually darker.,In fact, it's a little brighter when it's turned on.,After turning on the phone, it will return to normal.,It should be normal.,It should be after turning on the machine.,The adjustment software that comes with the graphics card starts,So return to the brightness of the adjustment of the graphics card software.。

There shouldn't be any problem with this, probably because the weather has been humid lately, and you can turn on the monitor for a few minutes and it will recover, and mine is the same. Won't worry! ~

Summary. When the monitor slowly dims until the screen goes black, it may be caused by moisture on the socket of the picture tube; It may also be a problem with the circuit on the driving logic board (that is, the driving circuit of the LCD screen); It could be that the display is aging. The display slowly dims until the screen goes black and how to fix it:

1. The socket of the CRT is damp: if it is caused by the dampness of the socket of the CRT inside the display, the sound should be normal, there will be some light and shadow, but the image is relatively blurry, and slowly everything is normal; If the moisture is not very severe, it will generally be displayed normally after a few minutes. You can use the position of the hair dryer to blow at the position of the "pipe header" for about half an hour and dry it manually.

2. Driver logic board problem: It may also be a problem on the circuit of the driving logic board (that is, the driving circuit of the LCD screen), in this case, you can replace one piece to solve the problem of black screen. 3. Display aging

If the black screen of the display is caused by the aging of the display, it will gradually darken, shake, or even black, and the professional personnel of the display may go to an outside repair shop to replace or repair.

The monitor gradually dims and finally goes black.

When the monitor slowly dims until the screen goes black, it may be caused by moisture on the socket of the picture tube; It may also be a problem with the circuit on the driving logic board (that is, the driving circuit of the LCD screen); It could be that the display is aging. The display slowly dims until the screen goes black and how to solve it: 1. The tube socket of the picture tube is damp

If it is caused by moisture on the socket of the picture tube inside the display, the sound should be normal, there will be some light and shadow, but the image is relatively blurry, and slowly everything is normal; If the moisture is not very severe, it will generally be displayed normally after a few minutes. You can use the position of the hair dryer to blow at the position of the "pipe header" for about half an hour and dry it manually. 2. Driver logic board problem:

It may also be a problem on the circuit on the drive logic board (that is, the drive circuit of the LCD screen), in this case, you can replace one piece to solve the problem of black screen. 3. Display aging: If the display is blackened caused by the display aging problem, the display will gradually darken, shake, or even black, and the display personnel should go to an outside repair shop to replace or repair.

The black ** actually has something.

But I can't see clearly.

I used the computer to look at the remote is a normal display.

This is a problem with the display, and it looks like it's damp.

There are also short-circuits in the line.

Blowing hot or cool wind The screen has only been bought for less than a year Can you just blow it?

It's cool. If there is sun, it is better to take it out and bask in the sun.

The most likely reason for this is that it is a power supply problem. This indicates that the power supply is unstable. Of course, it could also be a problem with the control circuitry.

Another possibility is that the display has an automatic brightness control function, which can automatically reduce the brightness when the environment is dark, and look at the manual to know if there is this function.

Because you said it's a new monitor, if it's a quality problem, it should be sent for repair immediately, don't try to repair it yourself, as long as you move a screw, then the after-sales service may be invalid!

Summary. Hello dear, it may be caused by the following reasons:1

Display settings: The screen saver default time is too short, causing the screen to go to sleep. Workaround:

Change the time of the screen saving program. 2.Graphics Driver Issues:

The graphics driver is outdated or problematic, causing the screen to go dark. Workaround: Update the graphics card driver.

3.Energy Options: There may be some parameter settings in your computer's energy options that are not suitable.

Workaround: Change your computer's energy options. 4.

Screen backlight tube aging: If the computer has been used for a long time, the screen backlight tube may deteriorate, causing the screen to darken. Workaround:

Replace the screen backlight tube or replace the entire display. It is advisable to try first changing the time of the screen saving program as well as changing the energy options of your computer. If the problem persists, it is recommended to contact a professional to check the condition of the graphics card driver or screen backlight tube.

Hello, dear, but Wu Shu can be caused by the following reasons:1Monitor settings:

The default time of the screen saver is too short, causing the screen to go to sleep. Workaround: Change the time of the screen saver.

2.Graphics card driver problem: The graphics card driver is outdated or problematic, causing the screen to go dark.

Workaround: Update the graphics card driver. 3.

Energy Options: There may be some parameter settings in your computer's energy options that are not suitable. Workaround:

Change your computer's energy options. 4.Screen backlight tube aging:

If the computer has been used for a long time, the screen backlight tube may deteriorate, causing the screen to darken. Workaround: Replace the screen backlight tube or replace the entire display.

It is advisable to try first changing the time of the screen saving program as well as changing the energy options of your computer. If the problem persists, it is recommended to contact a professional to check the condition of the graphics card driver or screen backlight tube.

There is no brightness adjustment in the windows10 display settings, how to adjust the brightness of the computer display with shortcut keys.

If you don't have the brightness option in the Windows 10 display settings, you can do so in the following ways:1I can use the adjustment power of the monitor itself.

2.If your computer supports shortcut keys to adjust brightness, you can use the following key combinations:- fn+brightness increase- fn+brightness decreasesome computers' fn keys may require you to hold down a secondary key (such as alt or ctrl) to take effect, check your computer's manual or try different combinations.

3.Upgrade or install graphics drivers. Some graphics drivers offer their own brightness adjustment feature.

It is possible that the current of the CRT bundle is too large and the protection circuit is activated. Solution: 1

Open the back cover of the TV and turn it on, and listen for a high-pressure sound when it is turned on. If it is said that the circuit is basically working normally (note that the previous meaning is basically normal), if there is no one, it is considered that the circuit is not started. 2.

Observe if the CRT filament emits light. glow, at this time slowly adjust the curtain on the high-pressure pack.