User question
Hello!
Recently, stripes and ripples began to appear on my computer screen; the picture can sometimes twitch when passing a horizontal stripe.
This happens only in games. I tried reinstalling Windows, changing video drivers - no effect. These are artifacts on the video card (I was told so at the service center), and it needs to be changed. Or are there other options?
Good day!
In general, the presence of any distortion on the screen is a very alarming sign. Stripes and ripples can appear on the screen both due to problems with software and problems with hardware. In this article I will try to analyze the most basic things that you have to deal with, what can be done and taken to diagnose and find the cause (well, knowing the essence of the problem, you can often fix it on your own 😉).
Photo of a monitor with vertical (horizontal) stripes and ripples (as an example to understand what we are talking about)
What to do if ripples and stripes appear on the screen
STEP 1: check if the cable connecting the monitor to the computer is intact
The first thing I want to start with is the cable (perhaps this is somewhat banal, but still!). The fact is that it can be accidentally interrupted, chewed (by a pet, a cat, for example), etc.
And in general, many users do not always screw the VGA cable (for example) so that it does not come off. Often, simply adjusting the plug will solve the problem.
The photo below shows a damaged USB cable (the video cable is also damaged) ...
I'll add a couple more notes (regarding wires):
- do not use long cables: if the length of your video cable is more than 3 meters, then the image on the screen may begin to distort (here, of course, a lot depends on the monitor);
- see if the video cable is intertwined with the cable of the printer, telephone charger, cable TV, etc. The fact is that such elements can create interference (especially in the absence of shielding). Try placing the video cable away from other wires.
STEP 2: Pay attention when artifacts appear
Immediately after turning on the computer, i.e. they are there when entering the BIOS (), and when loading the OS, and after it has loaded, in all applications and games;
They appear only at a certain stage: for example, when loading the OS, and then disappear. Either when entering a particular game, or after some time spent in the game.
If in the first case, you can’t work on a PC at all and you need to eliminate the cause (you can ruin your eyesight), then in the second, for example, you can continue to work for quite a long time.
By the way, a simple observation like this will help determine the cause of the malfunction. For example, if you experience artifacts in only one game, then most likely the problem lies in the temperature, driver, or errors in the game itself.
I will also note that in the second case, the chances of restoring the PC/laptop (without material costs) are much greater!
STEP 3: Connect another monitor for diagnostics
This step is very important!
It will allow us to determine whether the artifact problem is related to a malfunction of the monitor, or to problems in the system unit (video card, motherboard).
Surely in every house where there is a PC, there is a TV, or another screen of some kind ✌. For example, if stripes appear on your laptop screen, connect it to a regular monitor and see if there are any distortions in the picture. Nowadays, any modern monitor can be easily and quickly connected to a computer using an HDMI cable (sold in almost every computer store).
In the photo below: a TV was connected to the laptop in order to see if there would be artifacts on the TV screen.
If there are no artifacts on the other screen and everything is fine: Then the problem is with the monitor. By the way, the problem of horizontal stripes appearing on CRT monitors used to arise quite often. In general, if the monitor itself is to blame for the streaks on the screen, then without having experience in repairing equipment, you cannot do without it.
If artifacts are present on another monitor: then the problem is probably in your computer: the problem is either with the software or with the hardware. We'll figure it out further...
STEP 4: Check the temperature of components (video card, CPU)
If there are stripes on the screen, first of all you need to look at the temperature of the video card. This can be done using special. utilities: .
An example in the screenshot below. We check the temperature in the GPU-Z utility (see the line "GPU Temperature").
In general, it is difficult to give an exact value critical temperature of the video card : Here you need to look at your specific model (use your manufacturer’s website). But in general, everything above 80 gr. Celsius - should alert you to a thorough check.
To help!
How to find out the permissible and critical temperature of your video card:
If overheating is suspected, it is recommended first clean your computer from dust , replace thermal paste. Dust often blocks ventilation openings, reducing air circulation. As a result, the temperature inside the system unit (laptop) begins to rise.
In laptops, by the way, it is easy to determine overheating if you put your hand near the ventilation holes (usually they are on the left): very hot air starts coming out of there, you can even get burned.
By the way, these utilities can measure the temperature during your game, tracking all the maximums and minimums. As soon as you notice the appearance artifacts– check what the temperature was.
To help!
1) Checking the video card for performance, testing for reliability and stability -
2) How to perform a stress test of the processor and the system as a whole, does it maintain frequencies, is there any overheating -
At all, pay special attention to temperature in hot summer months, when PC components often heat up to significant levels. To reduce the temperature in the system unit, simply remove the side cover and place a regular fan opposite.
There is a special one for laptops. stands that help improve air circulation (due to which it is possible to reduce the temperature by 5-10 degrees Celsius).
STEP 5: check and update your video card drivers
Drivers are everything...
Video card drivers can have a significant impact on picture quality (especially for 3D games).
For example, about 15 years ago I had several versions of drivers (official and not) for my Ati Radeon 8200 video card (if I’m not mistaken).
So, on the official drivers, on the most recent version, there was a glitch: some elements in games (in particular fire) were not shown - instead some squares and sometimes stripes were running... When I switched to another version of the drivers, everything worked, as it should be. Over time, the developers fixed this bug...
By the way, pay attention to how the computer will work when you remove the drivers: will there be stripes or ripples. Below is a link to an article that will help you remove and update drivers.
To help!
How to update the driver for an AMD, nVidia and Intel HD video card: from A to Z –
STEP 6: a few words about overclocking your video card
If you overclocked your video card, then it is likely that artifacts could appear (especially if you have never done this before and have no practical experience 👀).
Overclocking, in fact, is a whole science where you need to know and feel quite accurately how the hardware will behave (and, of course, there is always a certain risk).
Try resetting the frequencies and checking functionality. As a rule, if the problem was related to unsuccessful overclocking, it is solved.
Screenshot from the game Doom 3: pay attention to the white dots - the result of unsuccessful overclocking
In general, in most cases, if software overclocking fails, modern video cards, processors and memory themselves reset the settings to safe ones.
STEP 7: Check if the desired shader version is supported
Each video card supports a certain version of shaders (and games, by the way, also require a certain version, see the description for any game).
The point is: if you are trying to run a new game on a video card that is not new, it is quite possible that it does not support the necessary pixel shaders.
In general, usually, in this case, Windows will tell you that the game cannot be launched and an error will appear. But sometimes this doesn’t happen, and the game starts with distortions in the picture (especially now there are special shader emulators that allow you to run games on video cards that are not approved by the developers).
So if you have a problem in any one game, check : whether your video card model is included in the list of those supported by the game.
To help!
How to find out the amount of memory of a video card, its type and other characteristics -
STEP 8: what else to pay attention to (hardware malfunction: video card, motherboard)
As a rule, when there are problems with hardware, artifacts appear everywhere: in the BIOS, when loading Windows, in games, in any other programs. In some cases, artifacts appear when the video card is heated to certain temperatures (for example, in games), etc. Most often, the reason lies in the detachment of the graphics chip, or overheating of the memory chips.
You can try the following: open the system unit, remove the video card and inspect it. Is there any visible damage on it? Most likely, there will be no visual signs of failure on it (statistics from personal experience).
However, if there is a lot of dust and high temperature readings in AIDA, Speccy, I recommend this:
1) First: clean the system unit from dust (can be blown out with a regular vacuum cleaner). .
2) Pay special attention to the video card contacts. Try cleaning its contacts with a regular eraser (clean the part that is inserted into the motherboard). Then blow through the entrance itself where it is inserted. With artifacts, this method helps, but not in all cases.
3) If the artifacts are not missing, it would be a good idea to check the video adapter on another work computer (however, I understand that this advice is unlikely to suit ordinary users; not everyone has 2 PCs at home...).
The photo below shows what normal capacitors look like (red arrows) and a swollen one (circled).
The motherboard/video card could also fail for reasons beyond your control. (i.e. without overclocking). For example, there was a power outage, a manufacturing defect, overheating, etc.
In general, for problems with iron (and lack of repair experience), it is better to contact the service center.
However, I want to warn you right away:
1. Some craftsmen may offer to repair and replace the chip on the video card. It is expensive (almost like a new video card), and it is unknown how the repair will be carried out, and how the video card will behave later. In general, I do not recommend it;
2. They may suggest warming up the video card (sometimes called hot). This topic is specific and extensive. But I want to say right away that such a repaired video card (at best) will not work for long, at most another six months. Then it still comes to an end...
The most preferable option for these problems is to replace the video card with a new one. In the end, it's cheaper for the wallet... 👌
By the way, I would like to provide a couple of links to repairing a video card yourself:
– is it possible to repair a video card in the oven;
Image artifacts are an extremely serious problem that can lead to numerous eye problems. This is why it is so important to get rid of any faults as soon as possible. Most often, users are bothered by ripples. What to do with the ripples? What measures will allow you to get rid of this defect as soon as possible? Are there any universal measures that can be taken to correct the situation and fix the monitor?
What defect is commonly called ripples?
Ripples are a defect on a monitor screen (or television screen), such as the complete absence of an image and hissing (in the case of a TV). Instead, noise appears on the screen that will prevent you from using your PC or TV monitor. This interference usually appears as horizontal stripes that flicker on the screen.
Rippling was a fairly common problem in the past, however, it still occurs today. If earlier ripples were widespread specifically in the case of televisions, then with the widespread use of computer technology this defect has reached monitor screens. Now this problem worries more and more people, because PC monitors tend to fail.
The ripples always look roughly the same, although there are some differences. They consist in the fact that some screens show simply gray-black stripes during ripples, while others show gray-black stripes diluted with colored stripes.
It's important to note that there is no difference in exactly what the ripples look like. It is a defect that requires elimination as soon as possible. Only in this case can you be sure that everything will go well and the defects will disappear.
Why does the screen ripple?
Problems with video card drivers are one of the most common reasons why ripples appear. It is not surprising that in many cases it is extremely difficult to fix this problem on your own. The fact is that the best option is to install a new version of drivers, however, this is not always possible. Moreover, in some cases, installing new software can lead to numerous technical problems, and in some cases it is completely impossible. When turned on, the ripples will remain.
So, if we are talking about a relatively new video card, then you should install the new version of drivers as soon as possible. In this case, you can forget about any problems for a very long time. If we are talking about an old PC with very little memory, then you will have to delete unnecessary files and make room for installing drivers.
If you need to install new software for a video card that is already more than 10 years old, then everything will be much more complicated. You will need to spend as much effort and time as possible to find working drivers, which may no longer be on the manufacturer’s website.
REFERENCE! As an alternative, we recommend paying attention to forums where it may be possible to find software for even the oldest equipment.
Another common problem is overclocking a video card. Overclocking is an extremely serious problem, which can be extremely difficult to solve even for a specialist. The consequences of improper overclocking are the failure of the video card. This seems like a small problem, but in reality it is not at all. After incorrect overclocking, the video card will have to be taken to a technician or service center, since in most cases it is absolutely impossible to repair it on your own.
Video adapter malfunction due to overheating is another popular problem. In this case, you will have to start testing the video card. This can be done using specialized software. We can recommend the Everest program as such software. It is free and easy to find on the Internet. In order for the test to be as successful as possible, you need to know the normal temperature for the video card. Usually it's about 50-65 degrees.
WITH EDIT! If the temperature is significantly higher, this means that the video card is overheating. Overheating can cause a wide variety of problems, so it's not surprising that ripples often appear after a device is out of temperature.
If the program detects a high temperature, but no overheating is observed (according to personal feelings), then the problem may lie in poor contacts. Then you need to check all the cables, however, this is the most extreme method. The thing is that opening a PC or laptop is not recommended, because it is very easy to break it or do something wrong.
Most often problems arise with the monitor. The most common problem is in the monitor itself. This is not surprising, because the monitor is a complex technical device that is very easy to malfunction. To prevent this from happening, you must comply with at least the most basic requirements for using the screen. If suspicions fall on the monitor, then they need to be checked. To do this, you need to connect the monitor to another PC. If the problem still does not disappear, then the problem is clearly that there is some kind of malfunction in the monitor.
It is possible that there are problems with the matrix. The matrix is a complex technical component, which can be extremely difficult to replace on your own. Sometimes it's all about the backlight or inverter. Rubbing the cable can also cause ripples. Usually the reason for the cable chafing is that the laptop is constantly being opened and closed. In this case, you can expect the problem to appear after a couple of months of intensive use.
How to get rid of ripples on the screen
As mentioned earlier, you can get rid of ripples in different ways depending on the type of malfunction. Among the universal ways to solve the problem are the following:
Replacing the chip directly on the video adapter itself. This is a rather complicated method. The thing is that finding a company that can repair a device with a chip replacement can be difficult even in a relatively large city. Moreover, some technicians do not have sufficient qualifications to cope with the problem. Then they will have to spend a lot of effort learning the basic repair methods and then finding the right chip. All this affects the cost, which is why it is so important to prepare in advance for the fact that this method will not be implemented.
REFERENCE! Warming up a video card is also a relatively complex method. It can only be used when no other method helps.
The fact is that this method can correct the situation only for a very limited time. Then the device will become unusable again and will have to be repaired. Moreover, we are talking about weeks or months of normal operation. Then the device can be safely thrown into the trash. This means that it is best to use some other method that will achieve positive results for a longer period.
The easiest way is to buy a new video card or a new monitor. If we are talking about a TV, then you will have to take it to a service center. These are the most expensive methods, however, they will be a real salvation if there is no other way to correct the situation. It is not surprising that in many cases people buy a new device to save themselves from unnecessary hassle and troubles. It's also worth noting that sometimes replacing a video card can be relatively cheap if it's an older computer.
In what case can you fix the problem yourself?
It all depends on how well a person understands technology. If we are talking about a housewife, then it is recommended to take the equipment to a specialized service center. They will help you sort out all the problems and make sure that the user does not even have the thought of doing the repairs himself.
The only case where you can try to fix the problem yourself concerns drivers. If you reinstall them, then you can forget about the problems for a very long time. However, the problem is not always the software. Most often, we are talking about some kind of hardware malfunction. Then you can’t do it not only without knowledge, but also without special tools.
Hello.
While many errors and problems on the computer can be tolerated, defects on the screen (the same stripes as in the picture on the left) cannot be tolerated! Not only do they interfere with your view, but they can also damage your eyesight if you work on such an image on the screen for a long time.
Stripes on the screen can appear for various reasons, but most often they are associated with problems with the video card (many people say that artifacts have appeared on the video card...).
Artifacts mean any distortion of the image on a PC monitor. Most often, they appear as ripples, color distortion, stripes with squares across the entire area of the monitor. So what to do with them?
Right away I want to make a small disclaimer. Many people confuse artifacts on the video card with dead pixels on the monitor (a clear difference is demonstrated in Fig. 1).
A dead pixel is a white dot on the screen that does not change color when the picture on the screen changes. Therefore, it is quite easy to detect by filling the screen with different colors one by one.
Artifacts are distortions on the monitor screen that are not related to problems with the monitor itself. It’s just that the video card sends such a distorted signal to it (this happens for many reasons).
There are software artifacts (related to drivers, for example) and hardware artifacts (related to the hardware itself).
Software artifacts
As a rule, they appear when launching some 3D games or applications. If you experience artifacts when loading Windows (also in), most likely you are dealing with hardware artifacts (about them below in the article).
There are a lot of reasons for the appearance of artifacts in the game, but I will analyze the most popular ones.
1) Firstly, I recommend checking video card temperature at work. The thing is that if the temperature has reached critical values, then everything is possible, from distortion of the picture on the screen to failure of the device.
You can read about how to find out the temperature of a video card in my previous article:
If the temperature of the video card exceeds the norm, I recommend cleaning the computer from dust (and paying special attention to the video card when cleaning). Also pay attention to the operation of the coolers; perhaps one of them is not working (or is clogged with dust and does not spin).
Overheating most often occurs in hot summer months. To reduce the temperature of the system unit components, it is even recommended to open the unit cover and place a regular fan opposite it. This primitive method will help to significantly reduce the temperature inside the system unit.
How to clean your computer from dust:
2) The second reason (and quite common) is drivers for video card. I would like to note that neither new nor old drivers provide a guarantee of good performance. Therefore, I recommend updating the driver first, and then (if the picture is just as bad) rolling back the driver or installing an even older one.
Sometimes using “old” drivers is more justified, and for example, they more than once helped me enjoy a game that refused to work normally with new versions of drivers.
How to update drivers with just 1 click:
3) Update DirectX and .NetFrameWork. There is nothing special to comment here, I will give a couple of links to my previous articles:
4) Lack of shader support will almost certainly result in artifacts on the screen ( shaders- these are a kind of scripts for a video card that allow you to implement various special functions. effects in games: dust, ripples on the water, particles of dirt, etc., everything that makes the game so realistic).
Usually, if you try to run a new game on an old video card, you get an error saying that it is not supported. But sometimes this does not happen, and the game runs on a video card that does not support the required shaders (there are also special shader emulators that help run new games on old PCs).
In this case, you just need to carefully study the system requirements of the game, and if your video card is too old (and weak), then, as a rule, you won’t be able to do anything (except overclocking...).
5) At overclocking a video card Artifacts may appear. In this case, reset the frequencies and return everything to its original state. In general, overclocking is a rather complicated topic and if not handled correctly, you can easily damage the device.
6) A glitchy game can also cause image distortion on the screen. You can usually find out about this by looking at various player communities (forums, blogs, etc.). If there is such a problem, then you are not the only one who will encounter it. Surely, they will also suggest a solution to this problem (if there is one...).
And hardware artifacts
In addition to software artifacts, there may also be hardware artifacts, the cause of which is poorly functioning hardware. As a rule, you will have to observe them absolutely everywhere you are: in the BIOS, on the desktop, when loading Windows, in games, any 2D and 3D applications, etc. The reason for this, most often, is the detachment of the graphics chip; less often, there are problems with overheating of the memory chips.
For hardware artifacts, you can do the following:
1) Replace chip on video card. Expensive (relative to the cost of the video card), it’s tedious to look for an office that will carry out repairs, it takes a long time to search for the right chip, and other problems. It is still unknown how this repair will be carried out for you...
2) Trying on your own warm up the video card. This topic is quite extensive. But I will say right away that such a repair, even if it helps, will not help for long: the video card will work from a week to six months (sometimes up to a year). You can read about warming up the video card from this author: http://my-mods.net/archives/1387
3) Replacing the video card with a new one. The fastest and simplest option, which sooner or later everyone comes to when artifacts appear...
That's all for me. Good PC work to everyone and fewer errors :)
Monitor flickering is a phenomenon that PC users encounter quite often. This problem can be solved in several ways - it all depends on the reasons for which this phenomenon arose. If you carefully read the troubleshooting methods, you can return the monitor to its former clarity and use the computer comfortably again.
Due to failures with the monitor screen, not only the level of quality and productivity of work decreases, but also severe eye fatigue appears, as a result of which vision actively deteriorates. It is worth studying the main reasons that cause this type of malfunction.
Table of the main causes of monitor screen flickering.
| Name and description of the reason | Remedy |
|---|---|
| The monitor has not been demagnetized for a long time. Some models need to be demagnetized after prolonged operation for proper operation. | You need to go to the monitor settings, find an option called “monitor demagnetization” and turn it on. In some cases, the corresponding buttons are located directly on the monitor itself |
| The computer's monitor refresh rate is set incorrectly | It is worth checking the frequency level, and if necessary, set the maximum value |
| Incorrectly installed or broken GPU drivers | You should go to the GPU manufacturer’s website, download the latest version of the drivers and install them. You can first check which version is installed right now |
| Presence of viruses or infected programs on the computer | It is enough to update the anti-virus database, run a scan, wait a certain time and then remove the viruses |
| Hardware problems. They can be observed both in the video card and in the monitor | It is recommended to take the PC to a specialized company or call a qualified technician to your home |
The monitor screen flickers/ripples. Fixes
Flickering, blinking and other related problems are really very distracting and make it difficult to use your computer. To determine one of the reasons, it is necessary to use the basic methods of correcting the malfunction.
Checking the screen refresh rate parameter
Important information! If the latest drivers are not installed on the monitor or GPU, then with a high degree of probability, no mode other than 60 Hz will not be supported (even if the product is modern and should support it). In this case, it is better to first download programs that automatically install.
Problems with monitor drivers
If the drivers were installed from the disk that came with the computer, then there is a high chance that many of them did not “install” on the system in the best way. Moreover, after reinstalling Windows OS, most old drivers stop working correctly.
To analyze video drivers you will need:
By the way, after completing the installation of the latest version of Windows, many are faced with the fact that the system driver is present, but there is no link to it in the control panel. Then it is recommended to reinstall the driver by downloading it from the manufacturer’s resource.
Driver Update
The most popular way to update drivers is through Device Manager. The user will need to perform the following actions:
- Open Start and select Control Panel.
- After opening the window, you need to find the “View” section, click on it, selecting “Small icons”. A list of items appears. You need to find "Device Manager".
- The manager window will open. You need to find the required device and then select the “Update drivers” option.
- Automatic and manual installation options will be offered.
- If you select automatic installation, it will begin searching for the main drivers on the Internet.
- If you select the second function, you will be able to independently specify the folder in which the drivers previously downloaded from the official website are located.
- Open the driver storage location, highlight the folder and click OK. Click Next.
- The installation process will start, wait for completion.
- After installation, a window will open indicating that the driver is installed, click “Close”.
Monitor technical problems
Before checking the video card and monitor for correct operation, it is still recommended to check the cable that is used to transmit images from the system unit to the monitor. What to do in this situation? It's simple: you need to try to connect the monitor to the cable that the user is one hundred percent sure of its functionality. Also, if possible, it is better to try connecting the monitor through a different connector. This will allow you to understand whether the cable is faulty or whether the problem lies in other components.
The extreme and most unpleasant option is considered to be incorrect operation of the video card or monitor. How to determine why the screen flickers? It won’t be difficult to check this: it will be enough to connect the PC to another (working) monitor. Some reason will definitely be excluded.
- If the image becomes clear, then the problem lies in the monitor. Surely, due to many years of use, the electrolytes in the power supply have become damaged - they must be replaced urgently. Sometimes the matrix itself fails;
- If the screen continues to blink, then the video card is to blame for the problem. During active operation, it tends to get very hot. The lack of proper cooling contributes to the occurrence of problems.
By the way, due to illiteracy, the screen can also begin to flicker and distort the image in computer games.
How to test your GPU using AIDA64
Additionally, you can test the GPU using a program called AIDA64. This utility is designed to display information about the computer and its main devices such as motherboard, processor, video card, and so on. Among other things, AIDA64 has several tests that allow you to check the stability of key computer components. The utility is quite easy to use:
On a note! The optimal temperature for a video card is considered to be 55-65 °C; in laptops a slightly higher temperature is allowed.
Monitor repair at home
It is better to trust monitor repair to qualified specialists who have solid experience in this field.
- First, the device will be diagnosed to determine the specifics of the malfunction and analyze it;
- Next, the internal board will be cleaned of dirt and dust;
- if necessary, the technicians will replace the TFT display matrix;
- Upon completion, a performance check will be carried out and the monitor will be tested.
If the client wishes, he can bring the monitor himself to the laboratory to the specialists. If this is not possible, the master will come in person for an additional fee.
Video - How to remove flicker from your monitor screen
If the screen flickers in the game and not only, then this is a clear signal that the monitor is outdated or faulty. However, things are not always so clear cut; it may be worth taking some measures before parting with the monitor.
Causes of flickering
When the screen starts to flicker in a game, it not only harms the monitor itself, but also negatively affects your vision.
The first reason may be the lack of demagnetization of the monitor, that is, if it is not demagnetized for a long time, its performance may be at risk. To eliminate this problem, you need to view the monitor settings and select the “monitor demagnetization” function. Sometimes such buttons are located on the monitor itself.
The second (and most likely) reason for screen flickering in the game is incorrect monitor frequency refresh settings. Usually in the screen resolution settings there is an option that allows you to manually set the screen refresh rate. It is worth using this function and setting the maximum value or choosing the number opposite which there is a “recommended” mark.
The third point is responsible for checking the video card, the drivers of which may be incorrectly installed or outdated. To fix the problem on the video card side, you should go to the GPU manufacturer’s website and install the latest drivers from there.
There is also such an unpleasant thing as viruses, which is what the fourth point relates to. Screen flickering in the game may be a consequence of “uninvited guests” in the operating system. To cope with the problem caused by viruses, it is worth updating your current antivirus, running system diagnostics and getting rid of viruses.
The last reason may lie in the computer components themselves - the monitor and video card. To check the video card and monitor, you should take the equipment to a computer service center or call a technician at your home.
It is worth installing drivers on the monitor, as well as on other equipment in the computer and peripherals. It is better to install them from the disk that came with the monitor.
If flickering of the image on the monitor appears after reinstalling the operating system, this is due to the fact that some drivers (not only for the monitor) may not work correctly after this manipulation. To eliminate this problem, you just need to reinstall the drivers for the monitor.
Technical part
Before sending a video card or monitor for diagnostics, it is worth checking the functionality of the cable itself that transmits the image from the graphics adapter to the screen. To check the functionality of the cable, you should disconnect it and insert a similar one in its place. If the problem goes away, then the problem is in the cable itself, and if not, it’s worth checking the connectors for serviceability.
Another solution to the problem is to connect the computer to another monitor. This method will make it clear that the problem is in him or vice versa.
The same method is worth trying on a graphics adapter, which can also malfunction, giving out the fact that under heavy loads the video card tends to heat up, and when the cooling system cannot cope, the graphics card begins to produce one failure after another, distorting the image on the monitor.
Video card testing
To make sure that the video card is working, it is enough to carry out testing, which becomes possible thanks to the AIDA 64 program. This software is needed for a complete diagnosis of the system, that is, each individual component.
To work with the utility, you need to download and install it. Next, you need to launch the program and use the menu located on the left side. In the enumeration column, select the “Computer” tab, inside which there is the “Sensor” option. By clicking on this tab, you can see (on the right side) that the temperature conditions of the heating components have begun to be displayed. If the temperature of the video card does not exceed 65 degrees Celsius, then it is not overheated.
Non-standard solution to the problem
If all of the above options do not give a positive result, you should use another way to solve the problem of why the screen flickers.
This method is suitable mainly if the problem occurs only when you are in games.
So, the problem is that the monitor plug that is inserted into the socket is touching the ground pins. They look like metal "antennae" that are located next to the holes for the plug.
The way out of this situation is both simple and difficult, since getting rid of the “antennae” will require the skills of an electrician. Once removed, the monitor should not exhibit any flickering.
Ideally, it is better to install sockets without such “add-ons”, as they can sometimes negatively affect the operation of the equipment.
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