How to connect a computer to a TV wirelessly and via cable

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How to connect a computer to a TV wirelessly and via a USB, HDMI, AUX cable and other methods. A computer is a device whose capabilities practically know no bounds. However, usually a monitor connected to a computer cannot boast of outstanding dimensions. Therefore, watching movies or playing a console may not be very convenient.

How to connect a computer to a TV wirelessly and via cable
How to connect a TV to a computer via an hdmi cable as a monitor
Fortunately, a computer can be connected to almost any TV, including old ones. This article will go into detail about how to connect a large screen, as well as analyze the problems that may arise during this process.

Options for connecting a TV to a computer or laptop

Today, there are many ways to connect a computer to a TV, some are already a thing of the past, while others are only gaining popularity. Everyone will be able to choose the most suitable method for themselves, both according to preferences and the availability of cables and converters / adapters.
How to connect a computer to a TV wirelessly and via cable

Safety precautions cannot be neglected. Any manipulations with devices must be performed before de-energizing them. It is better to completely unplug the power cables from the outlet; for the computer, you can simply turn off the power supply with the corresponding button.

USB connection

The USB connection method of the computer is only suitable for TVs that have an HDMI port. If you take a USB to USB cable and connect devices with it, then nothing will happen. For this method, you will need to purchase a special converter – an external video card that runs from the computer’s USB port. You will also need an HDMI cable.
How to connect a computer to a TV wirelessly and via cableStep-by-step instructions on how to connect a computer to a TV via USB:

  1. you need to connect the USB cable of the converter to the corresponding port on the computer;
  2. Connect the HDMI cable to the converter, and the other end to the TV;
  3. it remains to select the signal source, in this case it will be the HDMI connector to which the HDMI cable is connected.

This method can be done through a USB to VGA converter. However, it will not work to transmit sound over a VGA cable. You will either have to pull the jack 3.5 wire directly from the computer, or buy a converter to which you can connect both cables at once.

How to connect a computer to a TV with an HDMI cable

Perhaps this is the most popular and easiest way to connect a TV to a computer. It uses only one cable, transmits both video and audio, and the quality of data transfer is one level higher than that of alternatives.

How to connect a computer to a TV wirelessly and via cable
HDMI connector
Before you start connecting, you need to make sure that both devices have an HDMI port. Usually on TVs it is located on the side, occasionally in the back of the device.
How to connect a computer to a TV wirelessly and via cableThe same interface should be found on the second device, but there is one difference. A computer could have multiple HDMI ports, but one could come from the motherboard and the other from a discrete graphics card. If you have a discrete graphics card, you need to connect to it. But if it is not there, then you can connect it to the motherboard. The only difference is what will be involved during the data transfer. If you have everything you need, then you can proceed to the connection process. Step-by-step instruction:
  • connect the first end of the cable to the HDMI input on the TV;
  • the second end to the HDMI input on the computer;
  • select the desired port in the TV settings.
How to connect a computer to a TV wirelessly and via cable
Connecting a TV to a computer via hdmi

HDMI must be long enough. The maximum length at which there will be no signal loss is 10 meters. However, in some situations, the length can be increased to 20-30 meters. To increase even more, you will need to use either external amplifiers or a wire with an already built-in amplifier.


The VGA interface was previously the connection standard. But even today, monitors and TVs are equipped with an input for this type of connection. Since some computers do not have other outputs, which is especially true for older models, this option may be the only way to display an image on the screen.
How to connect a computer to a TV wirelessly and via cableAlmost every TV has the ability to connect via VGA. You need to find the output on the computer, and the input on the TV. Step-by-step instruction:

  • connect VGA input and output with a cable;
  • you need to make sure that it sits tightly;
  • tighten the screws on the sides, this mount will not allow you to accidentally pull out the wire;
  • It remains to select the signal source in the TV settings.

Special attention should be paid to the process of choosing a cable. VGA also has a maximum length at which it will function properly. For a resolution of 1920×1080 it will not exceed 8 meters, but for 640×480 it can reach 50 meters. As already mentioned, VGA does not support audio transmission, like HDMI, so you have to look for a solution to the problem. The simplest thing is to use computer audio equipment, or use the same 3.5 jack, but its maximum length does not exceed 3 meters.

How to connect a computer via DVI to Smart TV

If for some reason your computer does not have an HDMI port, you can use a DVI to HDMI cable. Almost every computer has a DVI connector, but not on a video card.

Giants such as NVIDIA or AMD have long abandoned DVI and VGA. Some motherboards that support integrated graphics still have a DVI connector, but this is only a matter of time.

As for TVs, there are usually no DVI inputs, since more modern connection options have long been replaced. The most reliable and easiest way to connect via DVI is to purchase a special adapter. You can also use a DVI to HDMI cable.
How to connect a computer to a TV wirelessly and via cableBoth interfaces can transmit high-quality signals in Full HD resolution. DVI also supports audio transmission. Step-by-step instruction:

  1. connect a part of the DVI cable or adapter to the appropriate connector on the computer;
  2. insert the other end into the TV;
  3. select the HDMI port as the signal input.

Older TVs have a DVI port, so you can connect directly with a DVI to DVI cable. However, in this case, no sound will be transmitted. Only with the use of a special adapter to HDMI, it is possible to transmit sound from the DVI output.

How to connect a computer to a TV wirelessly via Bluetooth

Usually, it is a laptop that is connected via Bluetooth technology, since not all computers support Bluetooth without a special adapter. This is convenient, because you do not need to buy and look for meters of wires. And you can also connect wireless headphones to watch a movie on the big screen and not disturb anyone. This method is more reliable and durable than a wired connection. They can tear, damage entry ports, or simply fail. However, to use this technology, the TV must support Bluetooth. You can check the availability of this function in the TV sound settings. If the technology is present, it will be possible there, for example, to find a sound output device.

How to connect a computer to a TV wirelessly and via cable
Bluetooth adapter [/ caption] If the TV does not support Bluetooth, then you can purchase a special adapter for TVs. However, it will only be able to transmit an audio signal. They come in two types: the first is connected to the USB connector, and the second to the AUX.
How to connect a computer to a TV wirelessly and via cableStep-by-step instruction:
  • in the settings of both devices, you must enable Bluetooth visibility;
  • using a computer, you need to find and select a TV, it will be difficult to make a mistake, since it is nearby;
  • some devices require connection confirmation, this can be done in the window that appears when you try to connect.

It should be borne in mind that the farther the device is, the worse the signal will be transmitted. Equally important is the absence of obstacles. Concrete walls, other electrical equipment, and household appliances will all interfere with the Bluetooth signal.

If there are no obstacles, then the range can reach up to 10 meters.


Connectors for RCA wires are not available on the computer, therefore, in order to connect the computer in this way, you need to purchase a converter. The modern way to connect to a video card is an HDMI interface. Therefore, it is advisable to buy an HDMI to RCA converter. Of course, you can use a VGA to RCA converter, but in this case you will not be able to transmit the audio signal.
How to connect a computer to a TV wirelessly and via cableThe converter needs power. Usually, a mini USB to USB cable is included with which you can power the device. It is enough just to insert the USB into a free connector on the computer, and then the other end into the power port of the converter. Before starting the connection, you need to figure out which plug is responsible for what:

  • yellow – video signal output;
  • red – left audio channel;
  • white – right audio channel.

Step-by-step instruction:

  • connect the HDMI cable to the input of the converter, and the other end to the computer’s video card;
  • on the other side of the converter, connect tulips corresponding in color;
  • insert the power cable into the device, and the second part into a free USB port on the computer;
  • it remains to connect the tulips to the TV itself, this happens in the same way, you need to insert a wire of the corresponding color into the desired connector.

How to connect a computer to a TV wirelessly and via cable   The converter may be powered by a single HDMI cable, so in some cases it may not be used. Also on the body of the device is a switch that is responsible for the color standard. You can try different options to find the best one.

Wirelessly with Wi-Fi

Today, there are a huge number of ways to wirelessly connect a TV to a computer. Most of them are related to the use of Wi-Fi. The main advantage of wireless connection is time saving. It is enough to set up the TV and check the quality of the connection.
In this case, it is enough to connect both devices to the same network. Next, you need to provide access to the folder in which the video files, images or music are located. In order not to bother much, you can simply transfer the content to the Video, Pictures and Music system folders, which are located in the Documents folder.
How to connect a computer to a TV wirelessly and via cableThey are public by default, so you can work with them on your TV.

DLNA technology

To use DLNA on a TV, it must support Wi-Fi Direct. In this case, you don’t even need the Wi-Fi router itself, since the device will automatically create a network to which you need to connect your computer.
How to connect a computer to a TV wirelessly and via cable

WiFi technology

The WiDi application can work with Intel Wireless Display, you can connect both a laptop and a computer that has a Wi-Fi card. You need to install the application, then click on the “Connect” button, and then select a TV from the list. If you are connecting for the first time, you will need to enter the PIN code that was previously set in the application.

How to change the signal source on the TV

Throughout the article, it was possible to come across the expression “change the signal source” more than once. The fact is that the device has several sources, for example, 2 HDMI ports, VGA and tulips. You need to tell the TV where to receive the signal from. How to connect a TV to a computer instead of a monitor:

Connecting a computer to an old TV

Almost any TV can be connected to a computer. The main thing is to have a rough idea about cables and converters. To connect your old TV to your computer, you first need to find the right ports that you can use to connect. Perhaps an old TV can be considered if it does not have modern or near modern connection interfaces. Therefore, for most outdated models, the connection method via RCA cable is suitable – tulips. If the device has more modern interfaces, such as VGA or even HDMI, then connecting via them will be preferable. Firstly, almost everyone has cables for such interfaces, and secondly, connecting via HDMI is superior in quality to RCA. [caption id=”attachment_7175″ align=”aligncenter” width=”597″
How to connect a computer to a TV wirelessly and via cable

TV manufacturers are trying to introduce new features, as well as simplify the connection of devices to other equipment. Especially stand out against the background of other companies LG and Samsung. Any of them can be connected using the methods already discussed, however, they have their own unique connection options.

How to connect a computer to an LG TV

TVs with modern LG Smart TV technology that support the connection of the Internet and other digital services are, in fact, computers. However, sometimes users need to connect, for example, a laptop directly to watch movies or share photos from a hard drive to the public on a large screen
Menu. LG has developed its own SmartShare application that allows you to transfer audio, video, and images from a computer to LG Smart TV screens . [caption id="attachment_536" align="aligncenter" width="1050"]

SmartShare is much faster than a regular Bluetooth connection, so it’s the preferred way to connect modern LG TVs.

Step-by-step instruction:

  • first you need to install, for example, on a SmartShare laptop;
  • in the application settings, you must activate data streaming;
  • select LG TV in the list of devices;
  • it remains to select SmartShare as the source.

Both devices must be connected to the same Wi-Fi router. It is better to do this with an Ethernet cable, so you can minimize the risk of data desynchronization, but this is not a prerequisite.


Samsung did not develop its own application, but you can use another option. Namely, AllShare technology.
How to connect a computer to a TV wirelessly and via cableIn fact, this is the same SmartShare, but has more features, allows you to connect from your smartphone, as well as receive information about calls and messages. The process of connecting both devices is extremely simple. You need to install the AllShare app first, then run it on your TV and computer. Select a playback device from the list. Both devices must be connected to the same Wi-Fi network. How to connect a computer to a TV wirelessly via Wi-Fi:

Problems and solution

No sound is transmitted through HDMI – This is one of the common problems, which is usually associated with an incorrect choice of playback device. You must select an HDMI output device in the sound settings on your TV.
No Signal – If everything seems OK after a few checks of connections, then one of the devices may not be functioning properly. The first step is to try another connection method, and if it works properly, then look for a problem either in the cable or in one of the devices.
How to check if the cable is working– First, you should inspect it externally for the presence of rusted and oxidized contacts, it also does not hurt to check it for physical damage. Then you can replace the tested cable with another one, and if everything works, then the first one is faulty.

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