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 first ones, as a rule, require contacting service center, and you can learn to identify the latter 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 standard means It will not be possible to check the temperature of the device. 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 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 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.
Normal in most cases operating temperature The 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, software temperature monitoring. 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 PC for a long time haven’t cleaned it of dust, then it’s time to start doing it. 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 you to move air through the computer more intensively. 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 of the user himself or third party programs may 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.
- We boot the computer into "Safe Mode".
- Click "Win" + "R".
- Next we enter "devmgmt.msc".
- Find the discrete card (if available) in the section "Video adapters". No yellow icons with exclamation mark should not be next to the device name.
- Using RMB, click on the name of the adapter, then select "Properties".
- In field "Device Status" normal operation must be indicated.
- Next, go to the tab "Resources" and make sure there are no conflicts.
Read more: How to enter “Safe Mode” through BIOS, on Windows 10, Windows 8, Windows XP
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 motherboard(if you don’t 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 malfunction 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 most operating system Windows needs:
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.
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. On this moment I 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 appeared interesting fact. 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 loading and working, it goes out Samsung monitor sync master 710. 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
Thought there were problems with RAM, installed from a computer I assembled 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, different 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 a this problem, 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/once a month blue screen of death
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 goes 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 already, during this time I managed to: install drivers different versions, completely remove the drivers and install a clean one, reinstall Windows twice, update the BIOS, comb through a bunch of forums with the same 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 a monitor is a less important hardware component of a computer than, say, a processor or HDD. 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 either a hardware failure or a malfunction graphics drivers, and, unfortunately, we have to deal with the first reason 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 a new version video drivers. 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 latest version or install software from a third party, such as 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 Windows versions. 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 subjected 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 is working properly, the message “No Signal” or “Cable Unplugged” should appear on the screen, 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 more effective system cooling, .
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 installed by 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.
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