The image is not displayed on the monitor

The computer turns on but does not display an image on the monitor.

The most common malfunction is when the PC actually turns on, but does not display an image on the monitor. You can see the lights on the computer case and hear the fans running inside, but nothing happens on the screen. There are several possible reasons why your monitor is not displaying information and it is important that troubleshooting is organized.

Approximate order:

Check your monitor. Make sure your monitor is working properly before proceeding with more complex and time-consuming troubleshooting steps.

Verify that your PC fully completes the power on and off cycle. In other words, make sure your PC completes restart and shutdown completely.

Often a computer appears to be “not working” when in fact it just has problems waking up from standby or sleep.

Diagnose the cause by the beep code. The beep code will make it possible to quite accurately find the reason for the shutdown of the computer.

Clear CMOS. Clearing the BIOS on the motherboard will return it to its default settings. Incorrect BIOS setup can cause display problems on the monitor screen.

Make sure the supply voltage switch is in the correct position. If the input voltage for the power supply is not correct (depending on the country), your computer may not turn on completely.

Reinstall everything inside your PC. Reinstallation will restore various connections inside your computer and very often fix this problem.

Try reinstalling the following:

  • Reinstall all internal and power cables
  • Reinstall memory modules
  • Reinstall used cards

7.Reinstall the processor if you suspect it was not installed properly.

8.Check for the possibility of a short circuit inside the computer. This is often the reason why the computer does not turn on completely, but it can also prevent the computer from booting completely or not displaying data on the monitor.

Check the power supply. Just because your computer’s fans and lights are working does not mean that the power supply is functioning properly. PSU tends to cause more problems than any other hardware and is often the reason why the computer does not boot completely.

If your PSU fails the test, replace it.

The following steps are the same as steps 8 through 12 in the article Computer turns on and then turns off.

How do you know what’s broken? Additional Information

You press the power button on the system unit, hear the fans start up, but the screen remains black.

Why the projector can’t see the laptop

You press the power button on the system unit, hear the fans start up, but the screen remains black. Why is there no picture? Monitor broken? Video card refused? These and other malfunctions, as well as methods of their elimination, will be discussed below.

Connecting the projector

It seems to be a very SIMple matter, but in fact, this is only for those who have long been familiar with computer technology. But for people who have almost never encountered computers, this can be a serious problem. Most often, such problems arise among teachers of various educational institutions, who were given a projector and a computer or laptop, but they were not taught how to use it. Of course, this does not happen everywhere, but there are many SIMilar facts.

Let’s consider what connection options can be.

Checking the video card

Malfunctioning video cards manifest themselves in different ways. With some types of breakdowns, the PC works, the system boot sounds are heard, but the screen remains dark. For others, the image is distorted, colors disappear, artifacts of stripes, snow, etc. appear on the screen. For others, the computer does not turn on at all. However, the situation when the computer does not turn on also happens when other devices fail.

The main reasons for video card breakdowns are overheating, chipped elements during the installation of components in the system unit (especially often when installing hard drives in a cramped case, entangled from the inside with wires), connecting to a monitor connected to the mains, or to a faulty power supply.

Start diagnostics with an external examination: disconnect the PC and monitor from the mains, open the lid of the system unit and remove the video card. If its fan is clogged with dust, clean and replace the thermal grease on the graphics chip. The presence of darkening, chips, swollen and flowing capacitors, as well as other defects on the video card, clearly confirms its malfunction.

A seemingly intact video card can also be inoperative, sometimes completely, and sometimes partially. So, connecting to a monitor connected to the network often leads to burnout of one video output. The rest remain intact.

After inspection, if there are no visible defects, proceed as follows:

  • check the video card in another PCI-E slot (on most modern motherboards there are two or more of them);
  • connect the monitor through a different output;
  • check the integrity of the connector and the additional power cable of the video card (there should be no creases, melting and bent contacts on them), in case of problems, replace the cable;
  • connect another power supply unit of suitable power to the video card.

Modern high-performance GPUs consume a lot of power and may not start on a low-power PSU. To determine what kind of power supply you need, look at its specification.

Also, check the performance of the computer with a different video, for example, built-in, and the faulty video card on another PC.

Vidyahu, which does not work with 1 video output, can be used by connecting to another. In other cases, you will have to change it or carry it for repair.

Keywords: projector, connect

Short description: This article talks about what are the ways to connect the projector to a computer or laptop

No initialization

The absence of a picture on the PC monitor does not always indicate a problem with the video subsystem. In the same way, the device initialization fails or, in SIMple terms, the incomplete turning on of the computer, when a stop occurs at some early stage of the startup. But the computer does not turn off, but continues to work.

Outwardly, the lack of initialization looks like this:

  • After pressing the Power button, the fans (processor cooler, case, on the video card) start to rotate at the highest possible speed, which does not change over time.
  • On the keyboard and the case, the power indicators, NumLock, CaspLock, ScrollLock light up and do not go out. The hard drive indicator remains dark. In some cases, all indicators remain extinguished.
  • The image is not displayed on the monitor.
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Initialization failure can be caused by:

  • BIOS flashing;
  • lack of a processor, as well as an unsupported or non-working processor;
  • faulty north bridge of the motherboard;
  • defects in the power supply circuits of the processor and bridge;
  • broken RAM module.

To fix the problem, try:

  • Replace the RAM module with a known good one, check the memory operation in different slots.
  • Install another processor that is definitely working and supported by the system.

The lost BIOS firmware can be returned to its place using the programmer (if any), and it is difficult to deal with other defects of the motherboard at home. You can either take it to the service, or replace it yourself with a new one.

Checking the monitor

Laptop monitor and display failure can be complete or partial. In the first case, the monitor does not turn on at all.

Projector setup instructions

In the second, the image on the screen does not appear immediately, but after some time or after several presses of the power button. Or it is displayed, but it is practically invisible due to the inoperative screen backlight.

The easiest way to test the performance of the monitor is by replacing it by connecting another monitor, projector or TV. The appearance of a picture on another device absolutely indicates a monitor problem.

To display an image on an external monitor from a laptop, do the following:

  • de-energize both devices;
  • connect them with a video cable;
  • turn on the monitor first, then the laptop;
  • press the keyboard shortcut for switching to an external screen (Fn F1-F12, the desired key can be easily identified by the icons on them).

Also, check the shutdown button of the laptop display (it can sink due to breakage, wear, sticky liquid under it). The button, if any, is located on the screen frame, in the keyboard area or near the cover fixing hinges.

To repair monitors, the qualification of a telemaster is required. Attempts to disassemble such a device without proper knowledge may lead to electric shock.

Checking the video card

Malfunctions of video cards manifest themselves in different ways. With some types of breakdowns, the PC works, the system boot sounds are heard, but the screen remains dark. For others, the image is distorted, colors disappear, artifacts of stripes, snow, etc. appear on the screen. For others, the computer does not turn on at all. However, the situation when the computer does not turn on also happens when other devices fail.

The main reasons for video card breakdowns are overheating, chipped elements during the installation of components in the system unit (especially often when installing hard drives in a cramped case, entangled from the inside with wires), connecting to a monitor connected to the mains, or to a faulty power supply.

Start your diagnostics with an external examination: disconnect the PC and monitor from the mains, open the lid of the system unit and remove the video card. If its fan is clogged with dust, clean and replace the thermal grease on the graphics chip. The presence of darkening, chips, swollen and flowing capacitors, as well as other defects on the video card, clearly confirms its malfunction.

A seemingly intact video card can also be inoperative, sometimes completely, and sometimes partially. So, connecting to a monitor connected to the network often leads to burnout of one video output. The rest remain intact.

After inspection, if there are no visible defects, proceed as follows:

  • check the video card in another PCI-E slot (on most modern motherboards there are two or more of them);
  • connect the monitor through a different output;
  • check the integrity of the connector and the additional power supply cable of the video card (they should not have creases, melting and bent contacts), in case of problems, replace the cable;
  • connect another power supply unit of suitable power to the video card.

Modern high-performance GPUs consume a lot of power and may not start on a low-power PSU. To determine what kind of power supply you need, look at its specification.

Also, check the performance of the computer with a different video, for example, built-in, and the faulty video card on another PC.

Vidyahu, which does not work with 1 video output, can be used by connecting to another. In other cases, you will have to change it or carry it for repair.

image, displayed, monitor

Projector technology is improving every year. That is why we have more and more new models, for example, one of the latest inventions is interactive whiteboards. At first glance, this is quite SIMple. The projector model connects to the computer, and the board connects to the same computer. The entire image is projected onto the screen. At first glance, there is absolutely no difference, but it is not. On the interactive whiteboard, you can mark up with a marker while displaying images, making it easy for training or a corporate meeting. But on a regular white screen, this will not work. In the best case, you can point your hand at the desired object.

But the principle of operation of a projector on an interactive whiteboard and on a white screen is exactly the same. You need to use a 229V connection and a surge protector to avoid power outages. The picture is displayed on the screen through the lens. Remember to take proper care of your lens. Wipe down with a soft cloth to avoid scratches. If you don’t use the lens too often, it’s better to keep it covered. A cap is included with the lens. All constituent parts need cooling when viewed. Inside any model there is a fan that moves when turned on. It is SIMilar to a fan in a computer that also acts as a cooling device.

Working with a multimedia projector may not only be limited to viewing educational or educational material. Today the modern world has made such a step forward that movie projectors have not remained in their place. Now they can be used at home as well. Home models can be used as a huge movie theater. The screen can be compact and hide behind a wall or move out from the ceiling.

There is no image on the monitor, but the computer is running

A fairly common problem that many personal computer users face is the lack of an image on the monitor screen, while the system unit functions at first glance absolutely normally. The article will talk about how to diagnose without the help of specialists, which components of the device need to be checked and how to solve the problem.

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The article discusses a specific situation when the processor starts up in a standard way: all indicators are on, all fans are on, a characteristic post-signal has passed, after which the operating system starts up, but the monitor does not display any image. The check must be carried out in a specific sequence, since there are more common causes of problems and vice versa.

  • First of all, you need to check if the cables are connected correctly. Naturally, first it is worth checking the cable that supplies electrical energy for the display to function. If it is not damaged and connected correctly, the socket to which it is connected is also working and there are no defects in the connector on the monitor (if the cable is not soldered), then you should go to the video cable. Most often, a VGA cable is used to transmit a video signal, and recently the HDMI standard has become popular, however, connectors for it are available only in the newest models of monitors. The stages of checking this component are not much different from the previous one. If the cause of the problem was found, and it was in one of the cables, then it can be solved quite SIMply. replace or fix the defective cord.
  • Since the stage of presenting the image to the screen occurs even when the BIOS starts up, the problem may well be hidden there. Naturally, in the absence of an image, it will be problematic to change any settings, but you can reset them. To do this, you need to open the system unit and remove the battery located on the motherboard. Many do not even know about its existence, but in fact such a “crumb” stores the most important BIOS settings, and in the absence of it, the computer starts up with default values ​​every time. You need to take it out for just a few minutes and then return it to its place. Perhaps the problem will be resolved.
  • Next, you need to check the operability and correctness of the installation of the RAM. It will not be difficult to get the boards out of the system unit, and their functionality in the computer is so extensive that it is quite possible that the monitor does not receive images precisely because of a failure in this component. You can combine this action with removing the battery, since it will take no more than 5 minutes. The RAM cards must not only be pulled out, but also cleaned of dust (not by hand!). It is best to use a tissue that will not leave fibers on the contacts. It is also worth cleaning the slots for installing boards.
  • Next, you need to check the performance of the video card, since this is the most important device that is responsible for supplying the video signal to the monitor, for the image quality, and also for the performance of everything that functions in direct contact with the video image. First of all, it is necessary to disconnect this device and clean it from dust. Next, we check the plate on which all contacts, resistors, transistors, etc. are applied, if there are dark spots on it, this indicates repeated overheating of the device, which could lead to malfunctions. The problem can be quickly resolved by replacing the video card or connecting the cable to another connector if the computer has a discrete video adapter (built into the motherboard). Repair of a non-working device can only be performed at a service center. In the end, in order to return the computer to full functionality, you will have to buy a new video card after a while, possibly with better technical characteristics, which will also become an update for the computer.
  • The problem may also be hidden in the power supply unit (PSU), since this device supplies electric current, pre-converting it, to all devices in the computer. Accordingly, a power supply malfunction can lead to the fact that the computer will start up visually, but the current will be enough only to spin up the coolers and blink the indicators. At the same time, the video card SIMply will not start its work in sync with the rest of the components. The problem is also solved by replacement or repair in a service center.
  • A common problem can be caused by the dusting of the main functional parts of the computer. It is generally recommended to clean your computer on a regular basis, since dusty contacts may not work at startup, dusty coolers will not effectively cool devices, and a dusty video card at some point may even burn out. Cleaning can be done with a regular brush and vacuum cleaner at low power, or using a compressor or can of compressed air.
  • If all of the above methods did not give the expected result, then the last stage of the check should be to assess the performance of the motherboard and (extremely rarely) the processor. A person who does not have a certain set of knowledge in electrical engineering on his own is unlikely to be able to solve the problem and perform diagnostics. Of course, you can rewire failed capacitors, but nothing more. If the malfunction is hidden in one of the specified components, then you will have to contact the service center.

Usually, all the procedures described in this article, if followed consistently, will help to cope with this problem. The main thing is to follow the instructions, since any little thing can actually block the video signal to the monitor. If the problem is not solved, then it is worth contacting the service center, because repair work must be carried out by specialists. Naturally, if this does not apply to repairing an electrical cable, which can be performed by any tech-savvy owner.

Checking the power supply

In the case of an insufficiently powerful power supply, the computer will not work correctly, this will also affect the image output. Pay attention to special services that allow you to calculate the required power of the PSU in relation to the installed components. If your model does not meet the requirements, then it must be replaced. Read more about the services for calculating the power of the power supply and its choice in our article.

If none of the above methods helped you, then most likely the problem lies in a broken video card. In this case, it is better to contact the service center for diagnostics, and if necessary, choose a new graphics adapter suitable for the motherboard.

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Why the video card does not display the image on the monitor

There are a number of reasons for the appearance of this problem, each of them has different ways of solving in complexity, so we will move from the SIMplest to the most complex, so as not to perform unnecessary actions in the event of a minor problem. Let’s get down to analyzing all the ways.

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Share the article on social networks :. Reinstalling components

When assembling the computer, some parts might not fully fit into their connectors or the connection was made incorrectly. Remove the side panel of the case and carefully examine everything inside. Check the wire connections with the instructions that came with the computer or motherboard. Pay special attention to the video card, whether it is well installed and whether additional power is connected, if any. In addition, pay attention to the processor, whether it is installed correctly and securely.

PC health check

In rare cases, the computer does not completely go through the power-on cycle, but freezes at a certain point, which may make it seem that the problem is in the video card. For example, the most common problem is crashing when resuming from sleep or standby mode. To check this, you need to hold down the power button for a few seconds, wait until the computer turns off completely, and then turn it on again. If the problem persists, then go to the next method.

What to do if the video card does not display the image on the monitor

If the computer turns on, you hear beeps and see light signals on the case, but the image is not displayed, then the problem may lie in a malfunctioning video card or improper connection of components. In this article, we will look at several ways to solve the problem when the graphics adapter does not transmit an image to the monitor.

Monitor check

Sometimes the problem is with the monitor itself. Check if the power is connected, if it is on and the cable is connected to the video card. Try replacing the cable if possible. In addition, you should carefully make sure that the HDMI, VGA, DVI or Display Port wire is connected correctly.

Did this article help you? Determining the cause of the breakdown by the BIOS signal code

Each manufacturer uses a different combination of short and long signals, so we strongly recommend reading our article on this topic in order to be familiar with all the signals from their BIOS manufacturer. Based on the results obtained, try to solve the problem yourself or take the computer to a service center.

Possible problems

How to expand the screen on the monitor if the standard recommendations do not work and you cannot move the slider? In this case, you will need to visit the “Device Manager” section in order to check if the software for the video card is installed. You can find it through “My Computer” by right-clicking on the icon. In the drop-down menu, select the “Properties” section, then go to “Device Manager”. In the list of equipment that opens, find the video card and check if there is an exclamation mark next to it (it means that there are problems with the driver, which is either not installed at all, or is damaged). Select the device name in the list, use the right mouse button to open the context menu and click on the “Update drivers” item. You can also install the software manually:

  • download from the official website of the manufacturer;
  • use the installation disc if it was included.

Please note that in operating systems of the new generation, drivers are installed automatically, and the question of how to expand the screen on the monitor is not worth it, since its adjustment is also automatic. Resolution settings can change when running programs in compatibility mode. For example, if you open a game whose system characteristics do not allow it to be used on this computer. How can I change the screen extension in this case? If after exiting the application, the previous settings were not restored, then use the very first method described in this article.

Option

When connected via hdmi-dvi, black bars around the edges (the picture is not full screen). this only happens in standard 1920 x 1080 resolution. In addition, the image was blurry and blurry. Remove scaling in ati catalyst control center worked, the stripes disappeared, but the picture remained fuzzy.

But the problem can be fixed for any mode, if there are stripes. We do the following:

We find the video adapter driver entry in the registry:

you may have another.

We are interested in the 37th byte order, if the address, then 0x24 in the line, it must be reset to 0.

Option

In windows 7, it turned out to be impossible to solve the problem of updating the drivers and CCC for the ATI HD video card due to the lack of a scaling bar, since it is not there.

The problem was solved by me as follows:

  • having entered the CCC on the Desktop and Display panel, right-click on the working monitor via HDMI
  • select the line Configure
  • select the Attributes column
  • check the boxes “Reduce DVI operational mode” and “Enable GPU scaling”
  • then we enter “LCD Overdrive” and see there a scale with buttons “Overscan” and “Overdrive”
  • click on the Overdrive button, watch how the screen expands
  • when it exactly takes the whole screen, click Apply and OK.

The need to expand the screen arose after three years of using the TV and reinstalling windows.

Option

The problem is solved as follows:

  • We connect the device, we achieve the output of the picture in an incomplete form
  • For Radeon ATI video cards, install the ATI Catalyst driver from amd.com or from the motherboard manufacturer’s website (for integrated graphics)
  • Launching Catalyst Control Center
  • Graphic arts. Work tables and displays. right key on the desired display from below. Tune.
  • Scaling settings. Move the slider to 0. Apply.

So the black border is:

Repair of computers and laptops in Kharkov

When the monitor is connected via HDMI, the picture is displayed, but after setting the resolution to 1920×1080 on the computer, the screen does not show the full screen, it leaves black stripes on all sides.

The screen is not on the whole monitor windows 7. How to expand the screen on a computer monitor?

How to expand the screen on the monitor? Personal computer users often have to deal with this issue. The fact is that the display settings can go wrong if you reinstalled the operating system, or the computer crashes. We will tell you about several options that will allow you to change screen extensions.

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