Why the TV does not see the computer through hdmi. How do I connect my computer to a TV? Wired and wireless methods. Physically connecting two devices

Modern TVs may well replace the computer display. But how does a computer relate to a TV?

We have collected different ways solutions to this common problem.

Connection selection

Attention will be paid first best options regarding the image quality with which you can easily connect. After that, several additional methods will be presented.

There is a chance that the user will need to buy a cable from the store. Usually it is not very expensive, but to purchase various devices at a specialty radio store or retail chain that sells consumer electronics.

Please note that gold plating on expensive cables does not affect the quality of the displayed image.

So, here are some options for how to connect your computer to your TV:

  • HDMI- ideal, because to work with it, you just need to connect the connectors. As a result, not only the sound, but also the image will be well transmitted. The only possible problem is that the sound from the laptop may sometimes not work.
  • VGA- one of the simplest ways to connect television. All you need is a cable that is sold with the monitors. There is a possibility that the user has an unused device at home. If necessary, you can buy it in a specialized store.
  • With cable from DVI things are the same - to work with it, you only need to buy an adapter and a cable.
  • Alternatively, you can use a composite cable S-Video... You can work with it both through a cable and through an adapter. But he is considered not the best way connections, because the picture may not be very clear. So such a connection is not used if modern technology is available. The connection takes place in the same way as when working with household players.

HDMI connection

Surely many users have heard about this connector. It is on all modern TVs.

An HDMI cable has the same connectors at both ends.

Cheap cable can be purchased. But if the user plans to work in 3D mode, it is better to use latest version HDMI cable.

A similar socket is located on the video card near the monitor connection.

If there is no discrete graphics card, the slot will be located on motherboard, that is, near the USB port. However, it will look similar.

With a laptop, everything is much simpler - it has the same HDMI jack. However, it is located on different sides depending on the model with which the user is working.

Sometimes the TV hangs on the wall and it can be very difficult to insert the cable from the back. It is for this situation that a cable with plugs at right angles is sold.

Alternatively, buy a dedicated HDMI corner.

VIDEO: How to connect a computer to a TV via HDMI

How to connect a computer to a TV via HDMI

Connecting a TV to a computer via a VGA connector

Video Graphics Array is an interface for receiving and transmitting analog video signals. Sound transmission in this variant of connecting the TV to the computer is completely absent.

Before connecting, make sure that both the computer and the TV are equipped with VGA connectors and a dedicated cable is available.

To make such a connection, your computer must be equipped with an operating system at least Windows 7.

In the off state, connect the PC and the TV with a VGA cable, and then on the remote control remote control TV, press the SOURCE button (in some models, this may be INPUT) and in the menu that appears on the screen, select the external signal VGA(in some models - PC or RGB).

Then confirm the selected changes by pressing the OK button.

Click right click mouse on free space on the desktop and in the drop-down list go to the screen resolution menu.

V this menu you are given a choice of how to use both a TV and a computer monitor, as well as setting the required resolution.

In addition, you can select the option to use multiple screens, in which the following options will be available to you:

  • Duplicate screens- a function that allows you to get the same image both on the monitor and on the TV screen;
  • Expand screens- will allow you to simultaneously watch a video on the TV screen, and on a computer, for example, print text;
  • Show Desktop 1 or 2 - this function carries out the work of only one of the available screens - either a monitor or a TV.

In general, the process of such a connection is not difficult, however, it creates some inconveniences associated with the transmission, in this version, of sound.

It will have to be connected with a separate cable or use a remote control for these purposes speaker system.

S-Video

Another option for connecting a TV to a computer is using the S-Video connectors.

This option is convenient because all TVs and computer video cards (except very old ones) are equipped with an S-Video connector.

All you have to do is connect these devices with an S-Video to S-Video cable.

Before connecting, both the TV and the computer must be de-energized, after which one end of the cable is inserted into the connector on the computer's video card, which is a round black jack, and the other into the S-Video jack on the TV.

During download on the computer operating system the TV screen will blink to indicate that an external signal source has been detected.

The next step is to configure the video card. To do this, click on the free space on the desktop and in the menu " Properties»Go to the tab « Options» .

Then select the item « Additionally» and in the window that opens opposite the name of the video card, activate the item « Clone» .

After application this parameter click on the item « Display" and select the name of the TV from the available list.

Then on the TV you search for the signal source and adjust the picture.

Miracast

Miracast technology differs from DLNA in that this option for displaying multimedia information from a TV to a PC simplifies the task of viewing not only recorded files stored on the gadget's hard drive, but also played online on one of the built-in web browsers.

But the Miracast technology has only one drawback - it is very demanding on computer resources.

So it is only supported by individual computers, as well as tablets and laptops that have powerful hardware.

It is important to implement such modern technologies in the TV itself.

If the TV only optionally supports Miracast, then you will have to spend extra money on an adapter that easily connects to the HDMI port.

Wireless monitor technology is very simple - the displayed image is compressed using a special algorithm.

After that, it is mirrored via Wi-fi to large display TV.

PC and Smart TV can be connected without a special router.

As, for sure, many people know home network can be created without using a router. V this case the laptop will act as an access point.

This is done in several ways:

  1. You can create a connection in one of the special management consoles;
  2. Alternatively, use;
  3. Take advantage of third party programs for example Virtual Router Plus.

Please note that distinctive feature most built-in Windows tools- great reliability and stability of work.

In addition, users no longer have to waste time searching for programs and installing them on Personal Computer... So the registry won't get too cluttered.

This method is considered one of the simplest.

Logged in as an administrator, start running the command line. To cope with this task in Windows 8, use the key combination Win + X.

When the menu appears, you must select the item " Command line". In the seventh version the operating system you must press the combination Windows keys+ R in the window that opens, and also register CMD and press Enter.

Be sure to write the following command netsh wlan set

and then press Enter.

Creation new network after that it will be completed and you can start launching it. To this end, write in the command line

Hostednetwork

It's important to say what to create virtual network can only be done once.

However, after the module is restarted, the user must write a command to successfully start the Internet.

As a result, the user will only have to connect the TV to the computer by performing the necessary steps that have already been done when working with the router.

Control TV from PC by wireless network Wi-Fi is possible using the same programs.

Various add-ons are known, with the help of which it is much easier to control the TV using a smartphone.

In this case, the telephone is used as a control panel.

So, this article provides basic ways to connect your computer to your TV.

It is very easy to cope with this task if you choose suitable option and follow the instructions provided. Then the user will not have any difficulties with the connection.

Before proceeding with the solution of problems, you need to make sure that the latest driver is installed on the video card of the computer / laptop. This requires determine which video card you have , go to the manufacturer's website and see which version of the driver for your video card is relevant and if you need to update it.

After connecting the TV to the computer, the desktop image is displayed on the TV (i.e. the TV has become the main screen, and the computer screen acts as an additional screen).

The task is to make the computer screen the main one, and the TV screen additional.

Solution - right-click on the desktop and select " Screen resolution"or go "Control Panel" - "Screen" - "Screen Resolution Setting".

The next step is to determine which screen we have the main (1st) and additional (2nd), for this you need to click " Define". You will see the number on the TV screen" 1 ", the number on the computer / laptop screen" 2 ". To correct the situation, in the Screen Resolution window, click on the screen" 2 ". tick " Set as primary monitor"and press the button" OK".

How do I change the audio source when connecting a TV using HDMI / DVI?

Those. you connected everything and everything works for you, but the sound must be switched from the computer to the TV or vice versa. To do this, on the computer, right-click on the speaker icon on the taskbar. if you do not have such an icon, restore it and select " Playback device".

In the opened device window, select the playback device and click the " Default" and " OK".

After connecting the computer / laptop to the TV using an hdmi / dvi / vga cable, the TV displays an empty desktop without shortcuts, windows, etc.

A similar situation is associated with the settings on the computer, in this case the TV works as a screen extension, i.e. it increases the size of your desktop, if you drag on a computer / laptop, using the mouse cursor, any window to the right or to the left (depending on the settings), then part of this window will be displayed on the TV.

If you are not satisfied with this setting and you want the TV to completely duplicate everything that happens on the computer / laptop monitor, in this case, right-click on the desktop, select " Screen resolution".

In the properties window that opens, in the field Multiple screens select " Duplicate these screens", click" Apply".

If everything suits you in the confirmation window, click " Save changes", if not, then you do not need to press anything, after 15 seconds the settings go back.

When you connect a TV with an HDMI / DVI cable, the computer "sees" the TV, but there is no picture on the TV (HDMI is selected on the TV).

Solution - the problem is most likely associated with a poor quality HDMI / DVI cable and needs to be changed.

I answer all questions in detail.
Friends! Everything you do on your computer, watch movies, cartoons, chat on Skype, play, view photos, slides or Internet pages in your browser, all this will be shown on your TV screen if the TV is connected to your computer via an HDMI cable. Now, almost any TV has an HDMI input, and most video cards produced have an HDMI output.
The HDMI interface was invented in order to connect two high-tech digital devices(they are undoubtedly your computer and TV) and transfer information from device to device without loss of quality. Such transmitted information can be an image and multi-channel high-quality sound. If you have a movie or cartoon on your computer, in any format HD, Blu-ray or AVI, MOV, MPG, MP4, then you can watch all this on your TV. There are slides or photos, please see. I'm not talking about games, since I'm not a supporter of them, they take a lot of time from young people, which can be spent on studying. We connect the TV to the computer via HDMI with a second monitor To connect the computer to the TV, we will use an HDMI cable, it looks like this and can be up to 20 meters long, choose the cable of the length you need.

For example, let's take a Samsung TV, not entirely new 4 series (LED type), bought a few years ago, but it already has two connectors for connecting HDMI devices.

The computer that we will use to connect to the TV was also purchased about three years ago, it is installed Nvidia graphics card and also with an HDMI connector.

As I said, there are two HDMI ports on our TV. With the TV off, connect the HDMI cable to the HDMI 2 connector,

We connect the opposite end of the cable to the HDMI connector of the video card stationary computer... The computer, in turn, is already connected to the monitor (also Samsung SyncMaster 971P) with a DVI cable.

We turn on the computer and TV. On the TV, there may not be an image right away, instead of it we see this message "Cable is not connected" "Check the cable connections and the source parameter" or "Weak signal or no signal"

On Samsung TVs, to display a list of all available video sources, press the Source button on the remote.

A menu comes out on the TV, in this menu, using the remote control, select the HDMI 2 connector,

Now, on our TV, an exact copy of the desktop of our computer should appear. But again there is nothing, the same error appears on the black screen. So we go to the "Screen Resolution" settings. Right-click on the desktop and select "Screen Resolution".

As you can see in the window that appears, the main screen is set to the second (2) Samsung SyncMaster 971P monitor, and in the "Multiple screens" parameter we have set "Display the desktop on only 2 monitors", that's why the image is present only on the computer monitor screen, but it is not on the TV


We bring everything in this window to this state. Choosing a parameter
Multiple Screens: "Duplicate These Screens"
In the "Screen" parameter, "Multiple monitors" is automatically set, click Apply and OK.

The desktop of our computer appears on the TV.

The resolution of our small Samsung TV is 1366 x 768. If your computer monitor supports this resolution, then it will be set to the same resolution of 1366 x 768 automatically. If not, then either the TV or the monitor will have the wrong resolution. For example, my Samsung SyncMaster 971P monitor has a maximum resolution of 1280x1024. When using a TV and a computer monitor at the same time, the main thing for me is to correctly set the resolution on the TV, otherwise why did I connect it then. I expose the resolution of 1366 x 768 on the Samsung TV, the image is perfect.

And on computer monitor this 1366 x 768 resolution looks like this.

And nothing can be done here. If you want the perfect image on a TV and a computer monitor, then they must support the same screen resolution, that is, have the same characteristics. There is no sound from the TV after connecting the TV to a computer via HDMI Friends! Do not forget that the HDMI interface transmits video and sound over one cable and we can specify in the operating system settings to use the built-in TV speakers for sound output.
Let's fix the problem by using a TV instead of a monitor. Go to Start-> Control Panel->

Hardware and Sound-> Sound

If you have nothing in this field, click on an empty space with the right mouse and in the menu that appears, mark the items "Show disconnected devices". "Show connected devices"
Now we look at the name of our TV, in my case it's Samsung, you need to turn it on, and turn off the rest. Right-click on Realtek and select Disable.

We also turn off the speakers.

Samsung - Enable, Apply and OK.

Often, if HDMI does not work on the TV, connection problems are observed. Causes:

  1. The cable is not properly connected or does not work at all.
  2. The TV connected as a monitor is not set up correctly.
  3. The video card cannot handle the load.
  4. The TV settings are not configured.

To avoid problems with device connections, learn how to do it correctly. Follow the instructions:

  • check wires and connectors. If they are damaged, repair, replacement is required. After making sure that it is in good working order, go to the next. step;
  • set up your computer, indicate that all information from the monitor is transmitted to the TV display. It is usually sufficient to check the box;
  • update the video card drivers (on demand);
  • check for viruses, etc. malware... Checking computer and television equipment;
  • connection.

Given the complexity software settings, not everyone is able to complete the task on their own. It is better to contact the specialists so that you do not have to correct the errors of an inexperienced user.

Cable

If, after checking the settings, the TV connected to the laptop suddenly stops working, then there are two options:

  1. the cord came off;
  2. the wire is broken.

The first problem is more likely. The user could accidentally touch the cord, breaking the stability of the connection, and the image stopped being displayed on the TV screen.

Broken wires are rare. Usually the product wears out naturally (temporary wear).

The entrance can also break. Replacement is a simple procedure for a specialist. An inexperienced user runs the risk of damaging the adjacent sockets, or the board where the port is connected.

Modern gaming consoles(PS3, X-box) are also connected via HDMI. Despite the features of the instruments, the malfunctions and root causes are of a similar nature. If the port or wire is damaged, the STB will fail to start. PC or TV writes: "no signal", although in fact everything was connected correctly.

Program adjustments

You need to set up a TV and a PC or laptop. When the technician is not in contact, there is no synchronization, probably the wrong signal source is selected:

  1. Enter the menu on TV technology.
  2. Change the source to the appropriate one.
  3. Confirm the new settings.

After the shift, everything should work.

If you are convinced that the signal from the television equipment is received and transmitted normally, but the image does not appear, pay attention to the computer:

  • go to « Graphic characteristics»(Right-click on a free space on the desktop);
  • set the correct resolution. Check the instructions for use for the permissible resolution. It is also adhered to in the settings of the laptop.
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