How to output an image to a TV via HDMI

Table of Contents

What errors can occur?

Unfortunately, even a technical savvy and having everything you need to connect can be a problem. Problems can be of both technical, iron nature (more often arise from the TV side), and software (typical for the newest models).

Technique not compatible

Even if an adapter is found, it is not a fact that it will work with your PC. adapters for old formats are not needed for a long time and manufacturers have ceased to somehow connect the old generation of devices with the new one. Chances are, the effort just won’t be worth it. If the TV is too old, there is a chance that an attempt to send a signal from a modern PC to it will generally fail anyway.

Choice of ports and connectors

In any modern TV, there are about a dozen different types of connectors and ports through which you can broadcast video directly from a PC without loss of quality and with an adapted resolution. Adjusting the picture is a matter of seconds, just do it once, and then enjoy the fruits of your work every day, watching movies or images from the couch.

output, image, hdmi

If you’ve never tried to project video from a computer to a TV before and have no idea where to start, start by looking at the ports on your TV. They can be found on the back of the case as well as on the sides.

Thinking about the possibilities for broadcasting materials from a PC even before buying a TV, you can familiarize yourself with the connectors of the selected model in advance. Usually this is of interest to buyers with non-standard needs, but you can simply transfer the image to any device.


SCART connectors are true technology veterans. The connector has been used since the days of the active distribution of DVD players, which in modern conditions is already completely different times. Such a port is also considered obsolete. even more than the previous two options.

SCART has long been replaced, if not by modern HDMI, then at least by composite cables (well-known “tulips”). Using it now can be another task for the owner of the TV, even with adapters.

Trying to broadcast video or other media files via SCART now is better not even to try. this is a waste of time, especially when it comes to connecting modern TV and PC models. If you need to connect to an old, ray TV, then SCART should still be given a chance along with the rest of the outdated connectors.

HDMI cable

There is an HDMI connector in almost all new models, this is a standard and very often used way to transfer an image to a TV with the highest quality possible. Also, this cable is used to connect the latest models of music centers and home theaters.

Computers and laptops are also equipped with such connectors, so there will be no connection problems if the PC is of a modern model. In addition to the quality of data transmission, the broadcast via HDMI is very fast.

If you plan to use this jack frequently and haven’t bought a TV yet, it’s better to choose a device with multiple HDMI ports. Thus, you do not have to turn off additional equipment for the TV just to watch a movie in good quality.

details about this method are described in the article.

The computer does not see the device

In order to start broadcasting, the PC must recognize the TV you are trying to connect to. This requires a stable network or wired connection. In the first case, it is enough to provide the Internet with an average speed, for the second. to check the integrity of the cables, the cleanliness of the ports and other mechanical moments.

Newer models of computers and laptops may simply not have software to connect to older devices. Such difficulties can be eliminated by using special software.

If both devices are modern, but the PC still cannot “see” the TV, or vice versa, you should manually reconnect the equipment. On the computer, select the broadcast mode, and on the TV, open the port to which the connection is made through the menu. Most often, connection problems occur on Windows 10, which is still poorly mastered by users.

USB cable

Anyone who uses modern electronics will definitely find such a cable in the house. Most often, such cables are used as components of chargers and are very cheap.

The USB port is a standard for any device, so you will definitely find it (and not a single copy), whether on your computer or on your TV. Cable transmission is fast, but the quality of the broadcast will be inferior to more technological methods such as HDMI.

The only drawback of such a cable is that they are usually not intended for use with a TV, therefore they are produced in short. If such a cable does not cover the distance from the computer to the TV, then it is better to use another option to play the video from the computer on the TV, although you can find a way to “lengthen” the USB.

DVI or Digital Visual Interface is a port specially designed for transferring video and other media material to a TV from a third-party device. The DVI cable is included with the TV and can provide picture quality sufficient for all your daily needs.

It is mainly intended for transmitting a digital signal and is located on the TV case in one copy. As an additional function, there is the possibility of transmitting an analog signal, although for these purposes in modern plasmas there are more highly specialized ports.

DVI is one of the first connectors designed for transferring digital data from PCs and video players (DVD). This technical solution has existed on the market for many years without any changes and is still relevant. A reliable and time-tested method.

Not the most popular connector. most owners simply ignore it, never using it for its intended purpose. The cable looks like a composite cord of several color segments of red, green and blue (hence the name RGB. red, green, blue).

The connector is not used for a reason. it has long been outdated and replaced by analogs more aimed at digital format. Since it is easy to find a faster and better replacement for such a port in the form of any modern digital / analog cable, it is better not to use it if there is an available alternative.

LAN network

A LAN cable is a set of two or more wires twisted together into a single cable. An ordinary user can see such cables every time he connects the Internet to a computer or router. fancy multi-colored cables in an insulating tube are a LAN network.

Despite the fact that such a cable is usually used to provide a network connection and for similar purposes, it can be adapted for data transmission, and at a fairly high speed. To do this, you will have to, at a minimum, purchase such a cable, but the reward for your efforts will be improved signal quality and high transmission speed. After all, LANs were created for just that.

This connector can be called the “ancestor” of DVI. If DVI itself is already considered obsolete, then VGA is even less used in modern realities. Invented to connect third-party devices with cathode ray monitors (lamp monitors), VGA does not stand up to any competition with new connector formats.

To resort to this method of data transfer is only worth the owners of very old devices that cannot support new ports due to the release of an earlier than their introduction.

With such an old monitor, a new, modern PC, even ten years ago, can have a conflict. you will have to try hard so that the computer generally “sees” the connected monitor.


Not the smartest way to connect, as the quality of the transmitted image is poor. It broadcasts video files of 576i and 480i definition, which is certainly not enough if we talk about modern formats. over, an S-Video to RCA adapter is also required. Sound is not supported, similar with DVI. For its appearance, use the mini-jack connector.

Wi-Fi connection

TVs manufactured according to modern standards have DLNA technology. Its essence lies in the ability to transfer data within the home network. This is done not only by cable, but also by Wi-Fi. In the second case, both devices must be connected to the network.

By default, TV will only be able to use shared folders. To fix this, go to laptop settings and go to “Network”. There, general access to the entire repository is opened. However, in this case, you will lose the security of your information.

This way, anyone who gains access to your Wi-Fi network can use your data. But you can make one folder “visible”, which is needed at the moment.

Much better and more convenient if the TV is equipped with Miracast technology or Intel WiDi. Turn them on on your TV and you can connect to your laptop wirelessly. This is done as follows:

  • On a laptop, right-click on an empty space on the screen.
  • A menu will appear in front of you. At the bottom of the list will be the “Display Settings” tab. Click on it.
  • In the window that appears, scrolling down the “Displays” menu, find “Connect to a wireless display”. After turning on the mode, a new window will open, it will show all the screens to which you can connect to transfer the image. Select the device you want.

By doing this, the TV display will have the entire laptop desktop, which will allow you to forget about the small resolution of the laptop.

You can transfer a picture from a laptop to a TV using an HDMI cable. First, make sure that the connector is on both devices so as not to make a mistake with the purchase.

After defining the ports, you can connect. This is done like this:

  • Insert one end of the wire into the TV and the other into the laptop.
  • On the TV remote control, open the menu through which the signal source is determined.
  • Select “HDMI”.

Done. Now you need to adjust the resolution on your laptop. When the laptop finds the TV, it will offer two broadcast options. dubbed, split, or using a second screen as the main one.

Done. Now you need to adjust the resolution on your laptop. It so happens that after the connection, the picture is displayed indistinctly. it means that the matter is in the aspect ratio. Go to the screen settings and find the optimal settings for your TV.

A rather outdated way of transferring an image. When developing this connector, DVI was intended for projecting video files to digital devices. He is the father of HDMI. Only though he is older, he cannot transmit sound. from which it significantly loses its significance. You will need a mini-jack connector to stream audio.

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To connect, the instructions from HDMI, which were outlined above, are suitable.

USB cable

You can also transfer images from your laptop to your TV via USB. But if we are talking about video, then immediately discard this option, since it does not imply the transfer of video content. Images, various presentations, documents. don’t count on more.

LAN is the port used to transfer the Internet connection. This option is suitable if the TV is not equipped with a Wi-Fi module. The whole thing is connected in this way:

  • Connect the TV to a router with the Internet using a network cable.
  • Do the same with your laptop. Here you can also connect via Wi-Fi. it doesn’t matter, the main thing is that to the same network with the TV.
  • On the laptop, you will need to install the appropriate software for broadcasting. The Home Media Server application will do. He has a fairly simple installation, understandable at an intuitive level.
  • Allow to use the necessary folders by opening access to them.

Done. Enjoy the picture from laptop to TV.

The disadvantage of this connection is the lack of sound when pairing. To make the sound appear, you can use an adapter with “tulips”, or all the same mini-jack. In order not to bother with audio, the sound is left on the laptop by connecting speakers to it. Also possible through the built-in laptop speakers.

Make sure to select the correct resolution for the best viewing experience.

Expands and translates as “Red Green Blue”. This connector is calculated as a replacement for SCART, since it is already quite outdated and modern manufacturers have abandoned its use. But RGB hasn’t gone far either. it is more commonly found on older TVs. Can be combined with all the same SCART or “tulips”.

Scart connection

European standard that can carry both digital and analog signals. Audio, video. everything is within his power.

In order to project images from a laptop to a TV, it is better to use a VGA to SCART adapter. There is an explanation for this. On TVs, SCART is most often found, and on laptops VGA.

External adapter

For example, you don’t have a Wi-Fi module, but you have an HDMI port. an additional adapter will help. There are 3 of them to choose from:

  • Android Mini PC;
  • Google Chromecast;
  • Miracast set-top box.

Just plug one of the suggested options into the HDMI connector of your TV.

Apple TV

Apple has taken care of its users and implemented AirPlay technology into its services. What is its essence? With it, you can easily and quickly transfer a picture from a laptop to a TV. In just a couple of minutes. Windows computers do not have this functionality, but you can download a third-party application that replaces it. The program is called AipParrot. You can install it for free.

  • Go to the website.
  • Next to the button “12.99” there is another. “TRY”. Click on it.
  • Click on Windows version.
  • Download the program by clicking on “Download”.
  • A window will pop up. Click “Save”.
  • Go to the program.

The only significant drawback is the trial period, which lasts 7 days from the beginning of use.

  • Install iTunes on the official Apple website.
  • Open the File menu and include the displayed collection.
  • The AirPlay icon will appear in the video player.

Ways to display images from a laptop

The connection is divided into wireless and wired. The cable does not always have to be identical on both sides: there are a large number of adapters for different connectors.

The disadvantage of a wireless connection that immediately catches the eye is the possibility of an unstable signal. And in a wired one. the presence of a wire. It can be short or interrupted somewhere inside, from which there will be no connection, and the cable can be externally intact. But cons can be found in absolutely everything, so you should not focus on this, it is better to move on specifically to the methods.

Determine available ports

This is the initial action to be taken. See what common connectors are on the devices. If there are several of them, you will have to choose. The quality of the picture and sound depends on the connection method, so you need to know the advantages of each of the ports. You will find the characteristics of each below.

Benefits of connecting via HDMI

Why is my TV connected to my computer via HDMI? This method has several significant advantages:

  • simultaneous transmission of audio and video signals;
  • high image quality. Full HD;
  • maximum simplicity of the connection process;
  • clear sound without interference;
  • modern TVs, laptops, computers are equipped with this connector;
  • insignificant cable cost.

There are other ways to connect a plasma to a computer. However, if you use outdated connectors, the image quality will be noticeably inferior to HDMI. Therefore, it is not surprising that users prefer this type of synchronization. To disconnect the TV connected via HDMI to the PC, you just need to pull out the cable, and then change the signal source on the TV.

Setting up the TV when connected to a computer

We figured out how the computer is configured when connected to a TV via HDMI. Now is the time to review the TV setup procedure. The user only needs to perform one simple action. to switch the signal source. By default, TV broadcasts digital or analogue signal.

The TV remote control mainly has a dedicated button that opens the list of signal sources. Select HDMI from the available options. If there is no separate button, then go to the main menu, and find the “Signal source” parameter there. You can connect not only a TV set to a computer, but also several displays at once. Now let’s analyze how to set up monitors with HDMI connection.

Setting up multiple displays

To broadcast a picture on a TV, PC and an additional monitor, you need to use the option of showing the image on multiple screens. To do this, you need to find the “Monitor type” section in the settings, and then select the appropriate option from the drop-down list. For example, from the list offered by the operating system, you can choose “duplicate display” or “expand the desktop”. In the first case, the same desktop will be shown on all connected devices at the same time.

For the picture to be displayed correctly, it is advisable to have monitors of the same format (16: 9 or 4: 3) at your disposal. Otherwise, the image will be distorted on one of the devices.

When you use the desktop extension, each connected device is automatically assigned a specific number. For example, monitor and monitor If you do not know which monitor is hidden under a particular serial number, use the “Define” button. The previously assigned digit will light up on the screen of all devices.

All monitors can be swapped if necessary. To do this, go to the settings window. As a result, their numbering will be changed. To save the changes made, click on the “Apply” button. To make sure that the extended desktop is working correctly, place the mouse cursor on the edge of the screen. Once the cursor is on the border, it will appear on another screen.

When the TV is connected to a PC, you can adjust the refresh rate as well as the screen resolution for all connected devices. Customization is done using the GPU. NVIDIA, AMD GPU modules have their own settings menu for all connected monitors.

To proceed to setting the basic parameters, right-click on an empty space on the desktop. If your system unit is equipped with a GeForce video card, then select “NVIDIA Control Panel” from the drop-down list. In the dialog box that appears, select the screens that you plan to use in the future.

What is needed to connect a computer and a TV

How do you connect PC to TV via HDMI? To synchronize equipment you will need:

  • HDMI wire;
  • PC and TV equipped with an HDMI connector;
  • adapter if the technician does not need an input.

Now let’s take a step-by-step look at how to display an image on a large screen. First you need to insert the cable plugs into the corresponding connectors. We insert one end of the wire into the computer port, and the other into the TV connector. When the user has completed the connection, the setup needs to be done.

Turn on your TV and computer if they were previously turned off. When Windows boots up, you can start setting up your connection. Right-click on an empty space on the desktop. In the context menu that opens, select the “Screen resolution” command. A settings dialog box will appear. You need to find the optimal resolution for the big screen.

According to the default settings, the operating system automatically selects the maximum resolution. However, due to the high resolution, the font will be extremely small. It is almost impossible to read it. This will create additional inconvenience if you plan to watch movies with subtitles.

Each user will be able to independently change the resolution. However, choosing a non-standard resolution may cause the picture to be disproportionately displayed on the large TV display. This is due to the matrix scaling according to the settings.

When you figured out the screen resolution, open the menu with additional settings, which is located on the “Monitor” tab. Specify the refresh rate that your TV will support. To do this, use the drop-down list from the “Screen refresh rate” item. Select one of the suggested values.

Be sure to adjust the color rendering. To do this, you need to use the “True Color (32 bit)” parameter. Do not forget to select the TV connected to the PC in the “Monitor Type” tab. When you change a parameter, a dialog box opens in which you can apply or cancel the specified values. Be extremely careful if the image is too stretched or flattened, then cancel the set parameters.

What are HDMI connectors and adapters?

The HDMI interface is constantly evolving. The developers are improving it. Therefore, the user should be aware of the existing modifications of this connector. The new version of the interface will not always be significantly superior to the previous one. Sometimes the differences are so insignificant that an ordinary user may not even notice the difference at all.

Backward compatibility technology is actively used by manufacturers. The bottom line is that each new modification has a list of the functionality of its predecessor. How do I identify different versions of the HDMI standard? Firstly, each modification has a specific marking. Secondly, they may differ externally.

Let’s take a look at some of the most common versions of HDMI connectors:

  • Deep Color. suitable for setting up a connection between a computer and a TV, which has an extremely rich palette of colors.
  • v.Color. uses a range of colors not available to RGB TVs.
  • Standard. a connector that supports this option will provide video signal transmission with a resolution of 1080p at a distance of up to 15 meters.
  • High speed. designed to transmit a video signal with a resolution of 1080p, but at a distance of up to 7.5 meters.

When preparing to set up a connection, keep in mind that the type of HDMI cable plays a huge role. For example, some versions allow you to transmit a video signal with Full HD resolution, while older versions, on the contrary, are designed to broadcast images with not the best quality.

In situations where an LG TV or a device from another company is hung on the wall, traditional cable connections are incredibly difficult to implement. This is due to the fact that there is a minimum distance between the back cover of the TV, on which the HDMI connector is mainly located, and the wall.

The situation with a lack of space for a wire is solved by purchasing a special adapter, the shape of which is a right angle. If such an adapter is used, then absolutely no difficulties will arise with setting up the connection. The connection process will depend on whether the connector is located on the back or on the side of the TV.

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Users who plan to connect several devices to TV via HDMI at once buy a so-called switcher. Switcher. an adapter that allows you to connect multiple signal sources to one connector.

Continuing the topic of adapters, we note that not all TVs and computers are equipped with an HDMI interface. In such cases, special adapters are purchased: VGA-HDMI, DVI-HDMI, USB-HDMI, etc.

Instructions for connecting TV to PC via HDMI

Can I play content online without Smart TV? Yes, but for this you have to set up the synchronization of the TV with a PC that is connected to the Internet. Now let’s look at how to connect a TV to a computer via HDMI to watch movies, TV shows, videos and photos on the big screen.

Outputting sound to TV

To play clear and surround sound, you need the system unit to be equipped with a sound card with support for High Definition Audio. How can I check this? Go to Device Manager, and then select the Sound, Game and Video Devices tab. There is an alternative way to check for HD audio support. Right-click on the speaker icon located in the system tray. Select the “Volume Mixer” section, and then open the list of devices in the “Speakers” menu. The list should contain the inscription “Realtek Digital Output”. Check the box next to this line to output HD audio.

Some TVs are not capable of playing sound when connected to a PC. To a greater extent, this applies to old models. If you have only 1 HDMI connector on the rear panel, then the audio signal will be transmitted. What if there are several such inputs? You need to study the technical specifications of the TV to find out if there is a possibility to use the digital streaming audio connector.

As you can see, you shouldn’t have any problems with setting up the connection. Everything is quite simple and easy. The main thing is to follow the recommendations and instructions.

How to connect?

It is recommended to adhere to the following algorithm (for example, Windows 7):

  • Turn off PC and laptop.
  • Connect one end of the HDMI cable to the laptop, the other to the HDMI output on the video adapter (not to the monitor).
  • Turn on PC and laptop.
  • On the PC, enter the “Control Panel”, open the “Display” menu, go to the settings.

In Windows 10, to get into the display settings, go to Windows Settings, in the System section. Or even simpler. right-click on an empty space on the desktop, the “Display Settings” tab.

  • In the drop-down menu “Multiple screens” select “Extend the desktop” (or duplicate, create a new table. it all depends on the needs of the user himself).
  • On a laptop, too, go to the “Screen” settings and select “Show Desktop 1” (or “PC Monitor”. the parameter may be called this way, depending on the brand). After that, the display will show the image from the PC.
  • In most modern laptops, switching between operating modes of the built-in display can be performed using hotkey combinations. The most common combinations are FnF4 and FnF8. You can clarify in the technical documentation or on the labels on the keyboard itself.

If there is no Extend Desktop or Duplicate Desktop item in the Screen settings, then either the graphics adapter itself or the driver does not support this function. It is possible that the cable is defective and does not transmit a signal.

How to set up multiple displays in Windows is described in the following

Similar settings for image output can be set through proprietary graphics accelerator software (NVidia, AMD, Intel, SiS). over, in many cases there are more functions. For example, in software from NVidia, you can not only configure the output of an image to a third-party display, but also at the same time adjust its brightness, contrast, or even turn on the “portrait orientation” of the displayed image.

After connecting the laptop to the PC via HDMI, the sound is automatically transmitted along with the video signal, and the audio card built into the PC is disabled. You can change this parameter in the “Control Panel”, in the “Sound” tab (by choosing the built-in audio codec instead of HDMI). Otherwise, no sound will be output from the headphones or PC speaker.

Likewise, you can use your PC monitor as an additional or external display for your laptop. But in this situation, it will be easier to simply connect the monitor directly, bypassing the graphics accelerator of the personal computer.

If there is no HDMI in the laptop?

If the laptop does not have an HDMI port, then the only way out is to use special signal converters from HDMI to VGA or DVI.

But in practice, if a discrete video adapter is used, then most likely the output of a third-party image to the built-in display will be blocked (since in such laptops there are 2 video cards that switch among themselves depending on the load on the graphics subsystem).

This limitation is absent only in laptops produced from about 2012. 2013.

Technical information

HDMI is a two-way digital I / O port. Its operation is controlled by the video adapter driver. Accordingly, the first step is to update the software to the latest current version (to support the latest version of the port specification).

Some Ultrabooks that have a physical HDMI port cannot output images from another PC. This is explained by the technical limitations of the used chipset and its strapping on the motherboard.

One more nuance: it should be connected with the equipment turned off (both notebook and PC). When you try to connect them “hot” there is a considerable probability of failure of the graphics accelerator (or the chipset, if integrated graphics is used). Only after disconnecting the device can you connect and configure.

We wrote about the features of connecting via HDMI on laptops here.

How to output an image to a laptop via HDMI in 5 minutes

The laptop is a portable PC. But the principle of its technical structure is similar. This means that its display can be used as a second monitor for a PC.

But how can this be done? How to connect a laptop to a computer as a monitor via HDMI and are there any other options for how you can display an image from a PC on a laptop display?

What other options are there for displaying the image?

It is possible to display an image from a PC on a laptop display not only through a cable, but also wirelessly. But only if each device has a compatible Wi-Fi adapter supporting the WiDi or MIRACAST function.

Wireless Display is fully functional only in Windows 10, while there is no official support in Windows 7, as well as in Windows 8.

For details on how it works and how to use MIRACAST, read here.

Alternatively, you can consider programs such as TeamViewer, AirDisplay (available not only for Windows, but also for Mac OS), Radmin. They also allow image transmission via Wi-Fi (even in the absence of WiDi support, the image quality will be low), but if there is a network connection (via a router or switch).

In total, if you have an HDMI cable, the laptop display can be used as an additional or duplicate monitor. And it works regardless of the version of the built-in HDMI port specification. In the absence of HDMI, you can use either wireless image output (WiDi) or a dedicated HDMI to VGA or DVI converter.

Required HDMI settings

Let’s consider how to display an image on a TV and what is needed for this. To do this, select the required screen resolution (when connected, the parameters are set automatically, they may not be suitable for some types of work).

You can choose the appropriate option in the “Screen Resolution” menu. Try several options, choose the one you want. Remember that a higher resolution means a sharper picture, but reduces everything on the screen.

Now you should go to the “Advanced Settings” tab and select “Monitor”. Set the frequency to 60 Hz or more.

Types of connectors that a TV can have

Let’s now consider what inputs a TV can have, as well as what cables are used in this case.

  • RCA is popular but outdated. To connect to a computer through it, you need to use VGA or S-Video cables.
  • S-Video. this connector does not need additional adapters. If necessary, you can take a VGA adapter.
  • SCART. most often used to connect a video player, but also suitable for a computer. Cable options. S-Video. SCART, VGA. SCART.
  • The most popular connector on modern computers and televisions. HDMI. There is also a similar cable.

How to output an image from a computer to a TV using an HDMI connector

This type of connection between a computer and a TV is the simplest and most common in modern devices. In order to get a picture, you need to have an HDMI cable and corresponding connectors (they look the same) in your TV and computer. Before connecting, you need to disconnect both devices from the network (possibly burnout of the ports or the entire connected device).

Advice. If the TV hangs on the wall or it is not possible to connect the cable conveniently, then use special cables, the plug of which is at an angle of 90 degrees (or there are special removable corners).

When connecting, be sure to disconnect the monitor. In principle, after connecting the cable, an image should appear immediately. In some cases, you need to adjust the settings.

Choosing a connection, or how to connect a computer to a TV without problems

  • The signal source and output connectors must match. Of course, if there is a mismatch, you can take adapters, but it should be borne in mind that the image quality may decrease.
  • Use the cables that come with your TV or computer.
  • Adapters that can be used if you cannot connect directly: D-Sub. DVI-I, S-Video. SCART, D-Sub. SCART, DVI-I. SCART.
  • Buy quality patch cords for better picture quality.
  • Don’t be afraid to ask. If you do not know what kind of cable you need or what connection to use, you should ask the seller.

Types of connectors that a video card can have

Consider the types of video card connectors, since it is she who is responsible for signal output.

  • VGA (D-Sub) is a connector for an analog signal, usually a monitor is connected to it.
  • DVI-I is a more modern type of connector, it is already possible to connect both analog and digital monitors through it.
  • S-video. this connector provides a connection between a computer and a TV, if the latter is an older model. To do this, you need to connect a cable and find a signal from a computer at one of the channel tuning frequencies.
  • HDMI is a more modern connector that will allow the transmission of video and audio signals to a TV. The image is very high quality and clear.

How to display an image from a computer to a TV: what you need to know and do

Almost all modern TV models provide for connecting a computer to it, but you need to know how to do it correctly. Let’s take a closer look at how to display an image from a computer on a TV.

What needs to be done in order for there to be sound

After deciding how to display the image from the computer to the TV, you need to decide on the sound. First, check the presence of a driver for audio output via HDMI. This is verified in the Device Manager menu. You need to go there, open the section “Sound, game and video devices” and check if there is a device with support for High Definition Audio.

Then you need to go to the “Sound” tab in the control panel and make sure you have a digital audio (HDMI) device.

You should also be aware that different TVs may have HDMI inputs that do not accept sound. Accepts HDMI 1 sound exactly. If, nevertheless, there is no sound, then you should look at the instructions for the TV, there may be other recommendations.

If you followed the above instructions correctly, an image should appear on the TV screen. But it may be that the resolution of the TV is incorrectly detected or unused black bars are displayed on the screen. Then you need to start the “Display parameters” function and change the extension to the required value.

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You have learned how to display an image from a computer to a TV. Now watching your favorite movie or playing the game will be comfortable enough.

How to connect a projector to a laptop, computer via VGA

The VGA connector is slowly becoming obsolete, but is still common in computer hardware. It is easy to recognize it. this is a large nest, consisting of three lines of miniature holes.

The VGA cable has three rows of metal thin prongs

You can connect the projector to a laptop using VGA using the standard algorithm:

  • the devices are turned off beforehand;
  • the wire is connected to the projector, and then to the PC or laptop;
  • both devices are included in the work;
  • adjust the image output parameters.

The VGA cable is fixed by tightening the special built-in screws on the sides of the plug. If you forget to tighten them, contact may disappear at the most inopportune moment.

The disadvantage of VGA is that the cable will not be able to transmit sound simultaneously with the image. The laptop will have to be additionally connected to the speaker using a mini-jack cable.

How to connect a projector to a laptop, computer via HDMI

The HDMI digital interface is considered to be the most modern and the most preferred when using a projector. It provides the maximum data transfer speed from a laptop to an external device, respectively, and problems with the presentation occur less often.

By connecting the projector via HDMI, the chance of data loss or delay is minimized.

The algorithm is very simple. on the case of a computer projector and a PC or laptop, you need to find the appropriate connectors for the HDMI cable. As a rule, there should be a graphic or letter designation next to them. After that, the wire should be connected first to the video projector, and then to the laptop. If the connectors for the cable are different, you can use an adapter.

Possible problems and solutions

Connecting the projector to a stationary PC or laptop rarely causes problems. But sometimes errors or problems may still occur:

  • When turning on the projector from a computer, the image is fuzzy, fuzzy, or there is a no signal message. Usually the problem is the difference in permissions between the two devices. To fix the error, you need to find out which display mode is the maximum for the projection device. After that, you need to go to the appropriate settings in the computer and set the desired value.
  • When connected, the laptop does not see the projector and does not display it in the list. First of all, you need to check the wires and make sure that they do not go anywhere, especially often this happens with VGA cables. After that, you should reboot, the system, when turned on, should scan for available devices and detect external equipment.
  • The connection was made according to all the rules, but still it is not possible to switch the laptop screen to the projector. The problem may lie in the absence of drivers, especially the problem occurs with a wireless type of communication. In this case, you need to go to the manufacturer’s portal and download from there the utility for controlling the projector from a computer for your operating system. After installing the drivers, the technique should also be rebooted.
  • The device was connected successfully, but the video cannot be output from the laptop to the projector. In some cases, it is not the peripheral equipment that is to blame, but the main equipment. A graphics processor of a weak model may simply not cope with all the tasks assigned to it. In this case, it is worth connecting external equipment to a stationary PC with high power ratings.

Resolution setting in case of image problems is carried out in the same place where the second monitor is connected

In exceptional cases, it is impossible to start using the projector and laptop despite all the troubleshooting steps. If the fixes don’t work, it might be because of faulty wires. The version is easy to check, you just need to use the cables on other devices and see if the problem persists. If it is possible to find out that the error appears due to bad wires, they only need to be replaced, it is not difficult, especially since they are inexpensive.

Sometimes the problem is caused by a defective projector with a factory defect. You need to check its performance through the service center. If the equipment is new and still under warranty, repairs will be carried out free of charge. But it is not recommended to open the device on your own, there is a great risk of breaking it completely.

How to properly connect the projector to a laptop or computer

For presentations, lessons and master classes, a laptop monitor is not enough, the screen is too small for a large audience. In such cases, you can output the image from the computer to the projector. There are several wired and wireless ways to connect the machine.

How to set up and display an image from a computer, laptop to a projector

There are several ways to connect the projector to a laptop or stationary PC. The procedure is not particularly difficult and consists of elementary steps.

How to connect a projector to a laptop, computer via USB

Modern projector models support USB connection. It has its advantages:

  • one laptop can be connected to several video projectors at once, since USB connectors in computer equipment are usually provided from 2 to 4 pieces;
  • connection for PC can actually be made, even if the HDMI and VGA video outputs are already occupied by other devices, you do not need to turn off the monitor first.

The physical space of the USB cable is very narrow, so the resolution of the data transfer suffers

At the same time, the disadvantage of USB connection is the almost inevitable loss of image quality. Also, users have reported communication problems when using too long USB cables.

The very connection of the video projector to the laptop is carried out in a standard way, the devices are connected with a cable through the appropriate connectors in the off state, and then they are put into operation. To establish a reliable connection, you need to download a special utility, you can borrow it for free on the website of the manufacturer of the external device.

How to set up a projector on a laptop, computer

Most of the time, the resolutions of the laptop and the projector do not match. You can understand that the picture requires additional adjustment by distortions and floating letters. Most models of projection equipment support images up to 1024 by 768, expensive devices. up to 1920 by 1080.

For the picture to be of high quality, you need to set the same values ​​for the laptop. On Windows 7, they do it like this:

  • open the context menu on the desktop and go to the “Screen resolution” tab;
  • set the maximum value for the projector. not higher and not lower.

For Win 10, the setup looks a little different. Here you need to go to “Settings” through the “Start” menu, and then open the “System” section and the “Screen” tab. You need to scroll down a little and click on the “Settings” of additional parameters, there they set the required resolution.


You will not be able to transfer video via USB ports, they are not designed for this type of signal. But you can use such a connector for connection on a laptop, you just need an adapter to HDMI.

How to connect a laptop to a TV directly via USB: in addition to a USB cable, you will need an adapter. a compact external video card that will help you broadcast an image from your desktop. When buying it, pay attention to the fullHD support and the characteristics of the transmitted audio signal. After connecting the devices, install the drivers from the video card on the computer and select on the TV as the USB signal source.

Defining ports

First, inspect the connectors on the laptop. Find one of the video outputs:

  • HDMI is a modern interface that allows you to transmit high definition video and audio channel. Not available in budget and older models. The TV may have several ports of this type, in this case, remember the number of the hole into which you insert the wire.
  • DVI. digital video output. The signal from it can be easily converted into analog form through an inexpensive adapter. This type of cord will help you connect devices that have a DVI or VGA port on one of them.
  • VGA is a common connector that transmits only analog video signal, no sound, maximum resolution 1600×1200 pixels. A port of this type on TV is often labeled as PC, you can use a standard computer monitor cable for connection. An additional cord is required for audio transmission.
  • S-video is an outdated port, it does not give the best picture quality. Suitable for connecting with old TV, VHS video players.

You should find one of these ports on both your laptop and your TV. They do not have to be of the same type, in the case of different connectors, adapters will come to the rescue.

Miracast and WiDi

For these technologies, you do not have to open access to folders, but a laptop must meet a number of requirements in order to display a picture via Wi-Fi:

  • processor at least Intel 3;
  • preinstalled Windows 8.1 or higher with Wi-Fi. for Miracast;
  • Intel HD Graphics wireless adapter. for WiDi;
  • the TV must support one of these technologies.

How to display laptop image to TV via WiDi: Download and open Intel Wireless Display utility, search for wireless display. To connect, enter the security code shown on the TV.

To connect via Miracast in Windows 8.1, open the Charms bar and activate “Projector” in the list of devices. Choose to add a wireless screen.


If your TV does not have Wi-Fi, but does have an HDMI connector, purchase a small adapter such as:

  • Android Mini PC;
  • Google Chromecast;
  • Miracast set-top box.

These small devices will give your TV the full Smart TV experience. Also, individual TVs allow you to connect a Wi-Fi adapter to their USB port, after which they can go to your home network.

How to connect a laptop directly to a TV

It is more convenient to watch movies or photos on a large TV screen than on a compact laptop. If you have a home theater system, watching a new movie will be even more comfortable. You can also run computer games by transferring the image to the TV screen. Let’s figure out how to connect a laptop to a TV. you need a special cable or wireless setup.

By cable

Connecting a laptop to a TV via cable is easy:

  • Determine what video ports your PC and TV have.
  • Select connection type.
  • Buy the appropriate cable and connect the devices.
  • Set up image transmission.

Likewise, you can connect the TV to a stationary PC system unit, but then the devices must be located close enough to each other so that the cord length is enough.

Apple TV

The Apple TV set-top box lets you stream video from your computer to your TV screen. The easiest way is to connect a laptop with Mac OS X, but you can also set up transfer on a PC with Windows.

How to connect a MacBook: connect Apple TV to a TV, connect the set-top box to a Wi-Fi network. In the PC system settings, select “Displays”, select Apple TV in the list. an image from the laptop will appear on the TV screen. If you want to transfer one movie, start it in the player, in the bottom menu bar, click on the arrow icon and click on “AirPlay”. Video will go to TV.

For Windows PCs, install branded iTunes. In the File menu, activate the Home Sharing item, the AirPlay icon will appear in the player. All movies and music from your library can be transferred to TV.