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  • The computer freezes and the monitor turns off. The monitor screen goes blank while the computer is running - why does this happen? Design features of the laptop

The computer freezes and the monitor turns off. The monitor screen goes blank while the computer is running - why does this happen? Design features of the laptop

Question: The monitor goes out (I read all similar topics)


Good afternoon, dear forum users. I hope for you because the situation is amazing. Like many similar threads I've read on the forum, my monitor is going blank. It goes out every few minutes, goes out for a second or two and lights up again, with the sound of the device turning off. At the moment, I have reinstalled Windows three times, three different official images. The system engineer took it for diagnostics - everything was fine, he tested it himself with everything he could. I reinstalled about 20 versions of video card drivers, which is interesting, with some blinking more frequently, every minute, with some almost stable once every 10-15 minutes. I turned off the monitor, connected a full HD TV and worked on the TV for 3 days - no glitches, the tests were excellent. The monitor is faulty, you say. And I said so. 3 days ago I took it to the service center. Today I received an SMS saying “no defects found”, how’s that? What is this anyway?

I want to emphasize. The video card is new, it is under warranty for 3 months, as is the power supply. In this configuration, this computer worked stably for 3 months. What could it possibly be?

System.
Phenom II X4 965 Black 3400
Asus M4A88t-M
RAM 14 gb
GameMax 650 w block
ASUS GTX 680 4gb
Windows 7 x64
Monitor Samsung BX2240

Answer: I'm probably already tired of this topic. In general, I decided to change the monitor, I just need to finish the project. But I still want to figure it out. New facts have appeared in the case. I changed the connections from DVI slot 1 to DVI slot 2. After that, the monitor worked fine for 2 days with a small reservation, after starting Windows blinked several times, but then it worked stably. On the 3rd day after starting Windows, it went out, went into sleep/standby mode, and 1-2 reboots of the computer helped. In addition, it turned out that in safe mode it works without problems. And also another interesting fact appeared. I work as a 3D artist and constantly work with different applications, so in all 3D applications it behaves normally, but when I open Photoshop, a frequent shutdown/connection sound starts and goes out/on frequently. I tried to connect it to the laptop, but it doesn’t want to work with the laptop (the TV works from the laptop)

Question: The monitor periodically turns off when playing games


The problem started yesterday with the fact that strong horizontal ripples appeared in games, at first it was the fault of a DVI cable that may have become unusable, it happened at night /, I postponed it until today. Today, after reading the forum, I decided that it was the drivers or the system (Windows 7), rolled back and reinstalled the drivers for the video card (radeon 5770), it didn’t help, then I reinstalled Windows, that didn’t help either. I started fiddling with the cable (stupidly, but after swapping the plugs, the ripples became a little smaller). I began to struggle with setting up both the video card and the monitor settings, I did it by default, the same in games, at minimum and + by default. But now the monitor began to go out, directly in games, and then like an avalanche, and when I change or exit to the desktop, then everything becomes normal. The video card does not heat up just like the processor and everything else. My guess is either a video card or a power supply (which I highly doubt). I ask local experts for help.

Answer: Install another video card or test the monitor on another PC.

Question: The monitor goes blank


Good afternoon! When booting and working, the Samsung sync master 710 monitor goes out. In the extinguished state, the green light is constantly on, turns on again after pressing (off and on) the power button. Sometimes it turns on after moving the mouse. Tell me what could be the reason?

Answer: Perhaps, after all, the monitor is far from new... thank you.

Question: The monitor goes blank and the computer freezes


Suddenly the monitor started to go dark and the computer rebooted. The computer is used mainly for accountant work and surfing the Internet. The computer is not mine, but my parents'.
I thought that the problem was in the power supply, I took a known working power supply from work for the weekend, the problem did not go away. I started sinning with electricity, bought a UPS, installed it, it didn’t help.
A friend asked to update the computer, purchased everything, connected it, configured it. To check, I installed it with my parents and it works without problems and does not reboot.
Then I changed the motherboard in my parents’ computer, the computer started showing problems with the disk, i.e. bads and all that, I took another disk, it didn’t help, the computer stopped rebooting, but a new problem appeared: the monitor goes out and freezes tightly. You can reboot only by power supply or by long pressing the on/off button. Those. also on nutrition
I thought there was a problem with the RAM, I installed it from a computer I built for a friend, the same thing.
The computer can work for half an hour, or it can work for half a day. The problem is not in the OS, since it freezes in the same way when working with Acronis (I was thinking about making a disk image and reinstalling the system), I decided to make an image because there are a lot of accounting programs, and if reinstallation didn’t help, I wanted to roll back so as not to install all this software (client-banks, various programs with cryptographers).
In terms of temperature, everything is fine, I checked immediately after the freeze, I touched all the boards in the system unit, the temperature is not high even for my hand, the sensors show the processor temperature of 23-25 ​​degrees, i.e. generally low...
People, help me, I’ve already broken my whole brain... at least which way to dig.

Answer: Ok, thanks, I'll try, I'll let you know how I do...

Question: The monitor turns off for 1-2 seconds


Hello
The monitor turns off for 1-2 seconds. It goes out everywhere: in games, in the browser, on the desktop. This happens completely randomly, it may go off once every 2 hours, or it may not go off for a week. When it turns off, computer activities do not freeze and continue. Now I'm using a DVI cable, but I have the same problem with HDMI. I checked the monitor on my laptop, it doesn’t seem to go out, but I only checked it for a week, maybe I was lucky. Maybe someone knows something and can tell me something?
msi z77a-g43
i5-3570
nvidia Palit GTX 670 JetStream
8 GB RAM
700v power supply
monitor AOC e2460s

Answer: Is there a way to check this non-contact?

Question: The monitor goes off (no signal)


During games or just while surfing the web (much less often), the monitor goes out (the screen says “no signal”, the light blinks, as if the PC is turned off), only a reboot helps. All coolers are spinning, the power diodes on the VGA are lit, the mouse and keyboard also remain powered. Sometimes it happens that the nvidia driver simply crashes (the video driver stopped responding and was restored).
The sound works, I can communicate freely on Skype, huh...
I assembled the PC 2 years ago (everything was new, except the power supply), it worked for a whole year without interference, then this problem appeared, either from win10, or from the power supply, or from a dead HDD, or from something else.
I replaced the HDD, the problem remained, until I replaced the power supply, in addition to the monitor falling, the sound also froze and sometimes the computer did not respond to the reset and start buttons.
TTX:
CPU: intel i7 4820k (36-37 degrees)
mother: asus X79 (31 degrees)
RAM: Corsair Vengeance® Pro Series - 16GB (2 x 8GB) DDR3 DRAM 2400MHz C11 Memory Kit (CMY16GX3M2A2400C11)
SSD(with OC): KINGSTON SH103S3120G
HDD: WDC WD1003FZEX
VGA: Asus Mars 760 (53 idle, 67 operating limit)
PSU(past): Thermaltake EVO-750AL3CC
Current: CoolerMaster RS850
Monitor: LG Flatron IPS235

I overclocked the CPU and RAM at temp. on the CPU at 56 degrees there was no effect on the problem, in FurMark I drove VGA, in the stress test 64 degrees at low (15-20) FPS, with MSAAx16 81-82 degrees stable at 35-38 FPS, without artifacts and monitor drops. I haven’t tested the RAM with memtest yet, and in general it’s hard to believe that everything worked stably for a year and then suddenly failed, without any overheating or physical problems. influences.
Recording games increases the chance of your monitor falling. Drivers from the nvidia website turn off the monitor more often than those recommended for the card from the asus website, but the drivers from the nvidia website do not cause the “video driver has stopped responding and has been repaired” error.
Before replacing the power supply, the voltage on the CPU sometimes dropped, which was warned by the asus software for the motherboard.
Can an unstable network (weak voltage surges) in the house affect this? (It seems like the power supply is protected from this)

Answer: The problem appeared on another video card, then is it the mother? Input devices turned off during the first reboot.

Question: The computer freezes completely/blue screen of death once a month


Hello. The computer often freezes (about once a week), freezes tightly, neither the mouse nor the keyboard responds. The screen does not go dark, the last frame remains on it before freezing (something like a slide).
Also, about once a month, a blue screen of death occurs.

Report to Aida64

Checking the stability of the Power Supply using AIDA64 and FurMark programs

Tell me what to look out for, what other tests to do, how to treat, etc.?

P.s. There are 2 SSDs on the computer, on one there is a system, on the other there is a game that I often play. The wheels are new (one year/year and a half). Could there be a problem with them?

Answer: I'm lucky to have all sorts of problems...

Problem signature:
Problem Event Name: BlueScreen
OS version: 6.1.7601.2.1.0.768.2
Language code: 1049

More information about this issue:
BCCode: d1
BCP1: 0000000000000000
BCP2: 000000000000000A
BCP3: 0000000000000008
BCP4: 0000000000000000
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1

Please review our online privacy statement:

If the online privacy statement is not available, please review your local privacy statement:
C:\Windows\system32\ru-RU\erofflps.txt

What is the reason for shutting down Windows and restarting it?

Question: FPS drops sharply in games and the monitor goes blank


Good afternoon/evening/night. I’m completely desperate, I’ve been suffering for the 3rd day now, I’m asking for help, in case someone has been in a similar situation.

Description of the problem: when you start a game (it doesn’t matter which one, it happens randomly, but with demanding games it’s faster), after a minute (using the example of the game Dirty Bomb), the FPS begins to drop sharply and the monitor goes off with a characteristic notification sound. The monitor just turns off, as if the video card or motherboard were losing each other, I suspect that subsequently Windows also turns off, but I’m not sure. It happened differently, yesterday the game was launched for 6 hours in a row, and nothing went off, but in the morning everything happened again immediately after turning on the PC.

I’ve been suffering for the 3rd day, during this time I’ve managed to: install drivers of different versions, completely remove the drivers and install a clean one, reinstall Windows twice, update the BIOS, comb through a bunch of forums with monotonous answers that didn’t help (I created the topic myself for the first time).

At first I thought it was overheating, but then why does the monitor go out immediately after turning on the game in the morning, after parking overnight, the computer simply would not have had time to heat up (I could be wrong, of course). I thought about the drivers, but I rearranged Windows twice and installed different versions of firewood, the effect was the same. I thought it was a video card, my wife has the same 1 in 1 video card, I installed her video card, the same black screen.

Friends put forward a version of the power supply. But then it is not clear why it allowed it to work for several hours, then went out immediately after being turned on in the morning.

Gainward GeForce GTX 660 video card, GIGABYTE H67MA-D2H motherboard (F8 BIOS)

I hope very much for your help. Thank you in advance.

Answer: throw another power supply

Question: When making a call to a mobile phone, the computer monitor goes blank


This is such chaos! This is the first time I see such miracles))
The procedure is as follows: the mobile phone lies 20 cm (maximum) from the monitor. A call comes in on your mobile phone - the monitor on the computer turns off for 3-5 seconds, then turns on, then normal.
The further the phone is from the monitor, the less likely it is that the monitor will turn off.
Win7 Prof x64
HP Compaq LA2306x Monitor
A small feature - the monitor is connected via KVM Gefen.
Help with advice, please! Where to dig, at least.

Answer: Try changing the cable with which the monitor is connected.

Added after 7 minutes
I will confirm that before I receive an SMS or a call on my phone (usually lying next to the laptop) and the sound is on, I notice some “tick-tilik-pik-pik”, roughly speaking, “a second before”
If it's lying on charge - it's a meter and a half from the laptop - then nothing like this is noticed. this is such a mess.

At first glance, it may seem that the monitor is a less important hardware component of the computer than, say, the processor or hard drive. This is partly true, since the display, if it is external, is easier to replace, but if it fails, both the processor and the hard drive are useless, because managing the system without an interface becomes impossible. And, I must say, problems with the display are not such a rare phenomenon, and most often users have to deal with its sudden shutdown.

An incident can occur at any time; the monitor periodically goes out and seems to have no reason, although, of course, there is one. In general, there can be a great many reasons, so diagnosing this problem often causes problems. For example, when the monitor turns off, but the computer continues to work, this may indicate both a hardware malfunction and a malfunction of the graphics drivers, and, unfortunately, the first reason is encountered much more often.

However, it is still worth eliminating the software component first. If you have previously removed or updated your video card drivers, it is quite possible that the problem is caused by the new version of the video driver. In this case, it is recommended to boot into safe mode, remove the problematic driver and install a working one, or roll back to the previous one. If the monitor turns off during a game, the culprit may also be a driver that is not coping with its tasks. This happens when running “heavy” games that require video card hardware resources. Here, on the contrary, it makes sense to update the drivers to the latest version or install software from a third-party developer, for example, NVIDIA.

What else causes the monitor to suddenly turn off? Let's figure it out.

System Settings

First of all, let's consider a situation where we are not actually talking about any problems. A very common reason why the monitor turns off while the computer is running is the function of turning off the display after a certain time, which is available in all popular versions of Windows. True, it is activated only if the user does not perform any actions on the PC. If this is your case, open your current power plan settings and see if you have the Timeout setting set to Turn Off Display. If yes, select "Never" from the drop-down list.

Hardware problems

Often the monitor turns off spontaneously due to hardware problems, which can be very different. A common situation is damage to the cable or connector. If the cable is old or has been exposed to strong external influences, it is likely that it has defects. Inspect it, make sure there are no kinks or kinks, and at the same time check the serviceability of the connectors and adapters. To completely eliminate problems with the cable, replace it with a new one.

Monitor is faulty

We cannot discount the possibility that the monitor itself is faulty, but in this case, it will most likely remain dark or go out a few seconds after turning on the computer, although there are exceptions when the monitor screen periodically goes dark for a couple of seconds. The first may be a sign of problems with the backlight lamps, the second may indicate a malfunction of the voltage inverter.

To avoid guessing what's going on here, disconnect the monitor from the system unit. If it's working properly, the screen should show a "No Signal" or "Cable Unplugged" message, otherwise it will indicate a problem with the display itself. If possible, try connecting the monitor to another PC.

Video card malfunction

This is another reason why the monitor goes dark while the computer is running. What to do in this case? As a rule, the video card is replaced, but before that you still need to make sure that the problem is caused by it. Remove the video card, check it for swollen capacitors, traces of oxides, etc., make sure the contacts are working properly, and then put it back in place. If you have another computer at hand, test the video card on it.

Overheating of hardware components

Overheating of components, including the graphics card, does not always lead to a BSOD or shutdown of the computer. Increased loads that occur, for example, when running particularly demanding games, may well cause individual components to shut down. If the monitor goes out during a game, but the system unit continues to work and the audio is also played normally, then overheating is very likely. The problem can be solved by cleaning the system unit, installing a more efficient cooling system.

Unstable operation of the monitor power supply

It also happens that the monitor screen periodically goes dark for 1-2 seconds, and then the image appears as if nothing had happened. This may indicate a problem with the monitor's power supply, which cannot cope with voltage fluctuations in the network, as well as poor condition of the cable contacts. Less likely reasons for this behavior are malfunctions of the motherboard itself, a conflict of video cards (it is recommended to disable one), problems with RAM (rare).

Incorrect resolution

When the monitor turns off while playing or just working, sometimes the wrong resolution is to blame. If, using third-party tools, you set a resolution that exceeds the capabilities of the monitor, it is very possible that the latter will turn off, especially when launching games. A clear sign of an incorrectly selected resolution is the “Out of range” message.

In this case, you need to boot into safe mode and lower the resolution to the system default.

Bottom line

As you can see, it is quite difficult to definitively answer the question of why the computer monitor screen goes blank while working. The reasons for this may be a carriage and a small cart; finding the true one for an ordinary user who does not have the appropriate knowledge is often a difficult task. Checking the system settings, contacts and load on components is, perhaps, within the power of everyone; as for diagnosing and repairing equipment, it is better to entrust this matter to specialists from the service center.

If the monitor turns off during a game, but the PC itself is working, the essence of the problem does not always lie in the monitor.

The problem may be a connection error, a malfunction of the video card or other components, or for other reasons. Below we will look at the reasons why such a popular nuisance may arise.

If your monitor's display goes blank during a game, but your computer is still running, you need to start by checking the most obvious cause of the problem.

First, you should turn off the PC, and then turn it on and watch the monitor.

  1. When you turn on the computer, does the monitor clear up and immediately go dark? Perhaps this is due to the backlight lamps that are installed in LCD monitors. They could very well burn out.
  2. Is your monitor display dark, but when illuminated under a backlight it appears very faded? Surely, the problem here is a malfunction of the voltage inverter.

To understand the cause of the problem, disconnect the monitor from the system unit. If the message “No signal” or something similar does not appear on the display, then you cannot do it yourself.

Repair can solve the problem. In the worst case scenario, you will have to purchase a new monitor.

Turn off the display

Your monitor turns on, works great, but after 15 or 30 minutes it immediately goes out. What's the problem?

By default, Windows OS has a special function “turn off the screen after a certain amount of time.” It's all about her. “This simply cannot be!” – many will say. Maybe. But this should definitely be checked.

It would be stupid if, because of such a trifle, you spend a lot of nerves and time trying to find out why the monitor goes out during the game. In addition, the verification itself will take no more than 2 minutes.

Instructions for Windows 7 OS

  • Select the following item: Start - Control Panel - Power Options.
  • Select the Power Plan Settings tab.
  • In the “Turn off screen” tab, select the “Never” field.

On Windows 8 and 10, the procedure is almost the same.

Instructions for Windows XP OS users

  • Right-click on the desktop and select “Properties”.
  • Go to the “Screensaver” item.
  • Press the “Power” button (bottom right).
  • See the “Turn off display” field, select “Never”.

Humidity

Another very popular reason why a monitor turns off during a game is humidity. You may not believe it, but if a laptop or PC is left in a room with humid air for a long time, this causes certain malfunctions in its operation.

As a result, the monitor turns on and turns off quickly. This is because condensation accumulates in it, which, of course, will not do anything good.

What to do in such a situation? Do not turn on the computer for a while and let the water evaporate. This way you will solve the problem (if, of course, that is the problem).

Have you cleaned your laptop or system recently?

The problem is as old as the world, but still. How long has it been since you cleaned your own personal computer? If it's been a long time, then that might be the problem. And now you are trying to understand why the monitor goes dark immediately after loading the game.

Dust can interfere with the operation of the RAM or video card, so it is advisable to clean the system unit as soon as possible. Or take it to the nearest service center and let them clean it there. Do not start your computer in this state in the future.

Poorly connected wires

Another reason why a PC monitor turns off during a game is poorly connected wires. We are talking here about the cord from your monitor to the system unit (more precisely, to the video card).

  1. Perhaps you accidentally caught it or pulled it.
  2. Maybe one of your family members did this, or maybe your beloved dog or cat.

In any case, this must be checked first. For this:

  • Disconnect the wire on both sides.
  • Blow and wipe.
  • Then plug it in again.

It may very well help. First, it is advisable to disconnect the cord only from the monitor side. If the message “No signal” appears on it, then there are two news for you. Good - everything is fine with it, it is not broken, bad - you still don’t know why the monitor turns off during the game.

Another popular problem is cable damage. In order to check this, you need to find the same cord and connect it.

RAM problem

Quite a rare situation, but it still happens. If the monitor turns off while playing, it is possible that your RAM has simply failed, or you have installed new RAM that is not compatible with your processor or motherboard.

In the first case, it is advisable to diagnose the RAM using a special program called MemTest. If it is not compatible, only a complete replacement will help you.

Video card

Often the monitor goes dark due to a broken video card. After all, this element is responsible for displaying the image on the display. And the cord from the monitor is connected to it.

  1. The most reliable method to make sure that the monitor goes out because of the video card is to connect another one and try to turn on the PC. You can take it from acquaintances or friends.
  2. Another option is to connect someone else's monitor (again, borrow one from friends). If this option is not available, then simply skip this step and move on to the next one.

Perhaps the monitor or display on your laptop turns off due to severe overheating of the video card. The cooler (special fan) is broken and the cooling system is not doing its job.

To make sure of this, turn off your personal computer and wait half an hour or more. If the problem was precisely overheating, it should turn on in standard mode. In this case, you will need to resolve the issue of cooling the video card or replacing it.

Video card driver conflict

Another common reason why the monitor turns off during your favorite game is a conflict with the video card drivers. In order to check this, you must perform the following steps:

  • Start - Control Panel - Device Manager (for greater convenience, you can select the view mode called “Large icons” in the upper right corner).
  • In the new window, click on “Video adapters”, after which the name of your video card will be displayed.
  • Right-click on it, select “Properties” and see the status. If the video card is working normally, it will be written in a new window.
  • Select “Resources” and read if there are any conflicting devices there.
  • If everything is fine, close all windows. Right-click on the desktop, select “Display Resolution” and select the minimum - for example, 800x600 pixels. Click “Apply” and restart your personal computer. If it turns on, the problem is completely eliminated.

The video card driver is not working correctly

If the device does not work normally, conflicts were found, or the previous method did not help you, then we will act more aggressively:

  • Boot your computer again in safe mode and go to Device Manager.
  • Open the Video Adapters tab and find your video card.
  • Right-click on it and select “Delete” (this is the standard procedure for removing the selected driver).
  • Confirm deletion and restart your computer. It should start normally.
  • Install the driver on the video card from the disk that comes with the kit, or download it from the official website.
  • Reboot your PC again to make sure your monitor no longer goes blank.

It is advisable to install drivers exclusively from the disk.

Problem with processor or motherboard

This is probably the worst possible option. It is a breakdown of the processor or a short circuit in the motherboard that often leads to the screen quickly going dark while the computer continues to function.

The system engineer can still work. In particular, the coolers will spin as usual, creating the illusion that everything is fine. But in such situations, you may need to replace the motherboard or processor, and this will cost you money.

However, problems with the monitor could have started for other reasons, but in this particular case it is advisable to entrust the computer diagnostics to experienced specialists.

Monitor resolution

In 90% of cases, a similar problem begins to bother users due to the fact that they have set their monitor settings to very high levels.

Each individual model only supports a specific resolution, as well as refresh rate. If you select parameters that exceed its capabilities, the screen goes blank when the game starts.

  • A special message “Out of range” appears.
  • The display just turns black.

For owners of old monitors

However, there is another important point. And it usually occurs among owners of older monitors with a resolution of 1024x768 or 1280x1024 pixels.

The thing is that game developers, by default, specify a specific resolution in their creations. Usually it is much higher than 1280x1024 pixels. This is why the monitor turns off in the game. It just doesn't support very high resolutions (or refresh rates).

This problem was observed in S.T.A.L.K.E.R, Far Cry 3, and other games. Then many gamers complained that the screen went blank while playing.

Solving this problem is quite simple:

  • You need to find the configuration file. It may have a different name, but it is always in .ini format. It is located in the game folder or in “My Documents”. More precisely, you can find out on Google by the name of the game.
  • In the configuration file, you should find the line that indicates the permission, and then change it to your own and save.
  • That's it, you can play.

Thus, the problem when the computer monitor goes blank while playing games will no longer bother you.

Conclusion

We really hope that one of the above methods helped you solve the problem. If the monitor display still goes dark, then it may be due to faulty hardware. In this case, it is better to look for other solutions to the problem, or go straight to the service center.

If the screen periodically turns off while working on a computer, the cause of this problem does not always lie on the display itself. It may be related to the video card, connection cable, RAM operation, etc. There are many reasons, and this article is devoted to the main ones.

Problems with the display constantly turning off are among the most difficult. It is very problematic for an ordinary user to diagnose and identify the cause at home. Such violations are associated with either hardware or software malfunctions. The former, as a rule, require contacting a service center, and the latter you can learn to identify by studying this article.

Reason 1: Monitor malfunction

If the monitor turns off while the system unit is running, then problems with the main output device cannot be ruled out. Most monitors have protection that is triggered automatically when overheating occurs. But it will not be possible to check the temperature of the device using standard means. Therefore, here we can only advise you to check it by touch. If the display case is too hot, it should be placed away from the wall or in another location with better air circulation.

High humidity levels are one of the reasons why the display turns off periodically. Move the monitor to a room where there is no high humidity and let it stand for a while. The monitor should not be connected to the network. And if corrosion has not yet formed, then after all the moisture has evaporated, the device should return to normal operation.

Disconnect the output device from the system unit. You should see something like “No Signal” or “No Connection” on the screen. If there is no such message, then you need to contact the service center.

To remove the monitor from the range of potential causes of the problem, you simply need to connect another output device to your desktop PC or laptop. If there is still no image, then the fault lies with the video card or cable.

Reason 2: Cable defect

The most common reason for an output device to periodically turn off is cable damage. The most commonly used connectors for screen output are DVI and HDMI. But the VGA format is still available. Make sure that the inserted cable is held securely and is twisted on both sides (DVI).

  • First you need to try connecting the display to another computer using the existing cable. If there is no change, simply replace the cable.
  • If changing the cable does not solve the problem, then the problem is in the monitor itself.
  • If the problem disappears after connecting to another computer, then the problem has nothing to do with the display or the cable. In this case, you should look for the cause in the depths of the system unit.

Reason 3: Video card malfunction

Another logical reason for the monitor screen to constantly turn off could be a hardware failure of the graphics adapter. The following is typical for such cases:


For information on what to do in such cases, see the link below:

Reason 4: Video card overheating

All modern PCs (including laptops) have two graphics adapters on their motherboards: internal and external. In the default BIOS settings, preference is given to the video card that is considered more productive (usually discrete). Therefore, it is necessary to monitor the temperature of the external graphics module.

In most cases, the normal operating temperature of a graphics adapter is considered to be one that does not exceed 60 degrees Celsius. But it’s almost impossible to achieve this on powerful video cards. The maximum peak (100% load) is usually determined at 85 degrees. For individual GPUs, the peak maximum reaches 95 degrees.

For almost all existing GPUs, the maximum allowed upper limit is 105 degrees. After this, the graphics module of the board reduces the frequency for cooling purposes. But such a measure may not produce results and then the PC reboots.

The first step is to make sure that the video card is not being cooled properly. For this purpose, there are, for example, temperature monitoring software. Let's look at two of them.

Method 1: GPU-Z

Method 2: Speccy


Let's look at the main reasons leading to insufficient cooling of the graphics adapter.

Dust

If your PC has not been cleaned of dust for a long time, then it’s time to start doing so. There is a possibility that dust inside the system unit or on the video card cooler itself does not allow the latter to cool properly. Dirt and dust on the card cooler itself can cause it to stop working in particularly severe cases. Cleaning dust does not require special skills: you need to disassemble the system unit or open the laptop case, then use a vacuum cleaner or soft brush. It is recommended to carry out such cleaning at least 2 times a year.

Design features of the laptop

Some laptop manufacturers do not think through a reliable heat dissipation system even at the design stage of a particular model. In such cases, laptop computers have, for example, very small grilles on the case, which logically leads to constant overheating of the entire device. Here you should take care to place any stand behind (or in front) under the laptop, lifting it up.

Alternatively, you can use special cooling pads for laptop PCs. They allow air to be forced more intensely through the computer. There are models that run on USB and also have their own battery.

Loss of thermal paste properties

Heat transfer between the GPU and the cooler is carried out through a special intermediary - thermal paste (or thermal interface). Over time, the substance loses its properties, which leads to insufficient cooling of the graphics adapter. In this case, the thermal paste must be replaced urgently.

Note: Disassembling the video adapter will void the warranty if it does not pass. Therefore, you should contact an official service center. If the warranty period is already past, read the link below for a guide on replacing the thermal interface for a graphics card.

Reason 5: Power Saving Mode

In all versions of the Windows operating system, there is a special service that disables devices that are not currently in use. The purpose of this function is to save energy. By default in the OS, the idle time is never below 5 minutes if it is a desktop computer or laptop. But various erroneous manipulations by the user himself or third-party programs can change this time to less.

Windows 8-10


Windows 7


Windows XP


Reason 6: Video card driver

Incorrect operation of graphics adapter drivers does not often lead to these problems. But you shouldn’t completely exclude the influence of driver conflicts (or lack thereof) on the unstable operation of the display.

  1. We boot the computer into "Safe Mode".

    2. Read more: How to enter “Safe Mode” through BIOS, on Windows 10, Windows 8, Windows XP

  2. Click "Win" + "R".
  3. Next we enter "devmgmt.msc".

  4. Find the discrete card (if available) in the section "Video adapters". There should not be any yellow icons with an exclamation mark next to the device name.

  5. Using RMB, click on the name of the adapter, then select "Properties".

  6. In field "Device Status" normal operation must be indicated.

  7. Next, go to the tab "Resources" and make sure there are no conflicts.

If the device appears with problems (presence of additional icons, resource conflicts, etc.), then the adapter driver should be removed. To do this we do the following:

This method is effective for problems with video adapter drivers. But unfortunately, it does not always bring results. In difficult cases, the user will be required to search and install the driver manually. Read about how to do this using the links below.

Tip: First of all, you should find and install drivers for the motherboard (if you do not have them installed), then all the others. This is especially true for laptop owners.

Reason 7: RAM

One of the most common reasons why a monitor turns itself off is a malfunction of the RAM. To detect such problems, there are special tools for checking RAM for errors. Even if a fault occurs in a single module, this is enough to periodically turn off the monitor while the PC is running.

RAM modules are not suitable for repair, so if problems are detected in their operation, you should purchase new ones.

Method 2: System RAM Checker

Another method for checking RAM does not require additional software. The OS itself has a special tool.

To run RAM diagnostics using the Windows operating system itself, you must:


Thus, to determine the cause of the monitor's inoperability, the user will be required to follow a number of steps. Some of these activities relate to simple and effective diagnosis by exclusion. For example, hardware problems related to the display and cable are easily identified. Software methods require quite a long time, but you cannot do without them to eliminate RAM malfunction.