Connecting the monitor to the computer. How to connect a new monitor to the system unit

Good day.

One of the most common questions when connecting a monitor to a computer is to deal with the variety of connectors, make the right choice of cable so that everything works (especially difficult if the monitor has several interfaces at once)... Whether it was before, there is one VGA everywhere: everything is simple and clear. But over time (after the appearance of high-resolution monitors), its capabilities became insufficient, and new interfaces began to appear ...

In general, now on monitors you can most often find DVI, Display Port or HDMI interfaces. Moreover, they are all, in turn, subdivided into several more types (if I may say so). The situation is even more complicated if there are some interfaces on the monitor, and completely different on the PC. No wonder and confusion ...

In this article I will try to "disassemble" this whole tangle, and answer the typical and most frequent questions about this problem.

And so, more to the point ...

HDMI

One of the most demanded and popular interfaces today. It is found on the vast majority of laptops and computers (you can also often find it on tablets). Suitable for connecting monitors, TV (and TV set-top boxes), projectors and other video equipment.

Peculiarities:

1. transmits both audio and video signal (simultaneously). In this regard, this is a big plus for the interface: no extra cables are needed to transmit the audio signal;
2. full support for FullHD (1920x1080) resolution, with 3D effects. Maximum supported resolution up to 3840 × 2160 (4K);
3. the cable length can reach 10 meters, which is sufficient in most cases (with the use of repeater amplifiers - the cable length can be increased up to 30 meters!);
4. has a bandwidth from 4.9 (HDMI 1.0) to 48 (HDMI 2.1) Gbps;
5. there are adapters on sale from HDMI to DVI and vice versa (very important for the compatibility of old and new devices with each other);
6. HDMI has several types of connectors: HDMI (Type A), mini-HDMI (Type C), micro-HDMI (Type D) (see photo above). On laptops / PCs, the classic size type is most often used - HDMI (Type A). Micro and Mini are found in portable technology (tablets, for example).

If you have HDMI on your monitor and system unit (laptop), then all connection will be reduced to buying an "HDMI-HDMI" cable (which can be bought at any computer store).

I draw your attention to the fact that before connecting via HDMI - be sure to turn off both devices (both the PC and the monitor). if you don't.

Display Port

A new and rather quickly gaining popularity interface (competitor to HDMI). Allows you to connect multiple monitors at once, supports 4K resolution, 3D image. There are two standard sizes: classic and Mini Display Port (the first option is found on ordinary laptops and monitors, see the photo above).

Peculiarities:

1. both audio and video signals are transmitted simultaneously;
2. the maximum length of the Display Port cable can be up to 15 meters;
3. data transfer rate up to 21.6 Gbps;
4. allows you to get a resolution of up to 3840 x 2400 at 60 Hz; or 2560 x 1600 pixels at 165 Hz; or you can connect two monitors at once with a resolution of 2560 x 1600 pixels and a frequency of 60 Hz.
5. note that besides the classic Display Port, there is another form factor: Mini Display Port.
6. by the way, the size of the Mini Display Port is about 10 times smaller than that of the DVI connector (about him below in the article)!
7. the interface has a small "latch" that secures the cable securely when plugged into the port.

DVI

This interface is almost 20 years old, and is still very popular (released in 1999). At one time, I seriously improved the quality of the image on the screen.

The maximum resolution is 1920 x 1080 pixels (however, some expensive video cards can transmit data in dual link mode and the resolution can be up to 2560 x 1600 pixels).

Peculiarities:

1. only the image is transmitted through the DVI connector (the audio signal will have to be transmitted through other channels);
2. resolution up to 1920 × 1200 points with cable length up to 10.5 m; resolution of 1280 × 1024 dots with cable length up to 18 m; in two-channel data transmission mode - up to 2560 x 1600 points.
3. There are three types of DVI: DVI-A Single Link - analog transmission; DVI-I - analog and digital transmission; DVI-D is digital transmission.
4. various connectors and their configuration (DVI-A, DVI-D, DVI-I) are compatible with each other.
5. Please note that this standard is more prone to interference: for example, if there are other devices that emit an electromagnetic signal (telephone, printer, etc.) near the cable. Also, this can happen due to poor cable shielding;
6. there are many adapters on sale from VGA to DVI and vice versa;
7. DVI connector is large enough, ~ 10 times more than Mini Display Port (Apple even released Mini DVI, but it did not find much popularity ...).

VGA (D-Sub)

This standard was developed back in 1987. Despite this, it is still very popular, it is used mainly for simple projectors, video consoles, small office monitors (where high resolution and very high quality images are not required). Resolutions up to 1280x1024 pixels are officially supported, and therefore many "predict" a quick eclipse of this interface ...

My personal opinion: many people "bury" this interface early, because thanks to the hundreds of millions of devices that have been released over these 30 years, VGA will "outlive" some modern ones.

Peculiarities:

1. transmits only video signal (other channels must be used for audio);
2. maximum resolution up to 1280 × 1024 pixels, at a frame refresh rate of 75 Hz (in some cases, it is possible to work at a higher resolution, but this is not officially guaranteed, in addition, the image quality may deteriorate);
3. there are many adapters VGA to HDMI, VGA to Display Port, VGA to DVI and vice versa;
4. despite the "moral" obsolescence - the interface is supported by a variety of audio and video equipment, and is still in great demand.

Popular questions about connection and cable selection

Option 1: Both the monitor and the computer have the same interface (HDMI or Display Port)

Perhaps this is the most favorable option. In general, it is enough to buy a standard HDMI cable (for example), connect the devices with it and turn them on. No additional setup is required: the image is immediately displayed on the monitor.

Important!

If the HDMI connection is hot, the port may burn out! How to avoid this, and what to do (if the monitor / TV via HDMI does not work) is described in this manual:

Option 2: devices have different interfaces. For example, on a laptop HDMI, on a VGA monitor.

This option is more complicated ... Here, in addition to the cable, you need to buy a special adapter (sometimes the cost of such adapters reaches 30% of a new monitor!). It is better to buy both the cable and the adapter as a set (from one manufacturer).

Also note that older PCs / laptops with VGA | DVI connectors may simply not "produce" high definition images if you want to connect a large monitor / TV to them.

There are a lot of adapters on sale now that ensure the interaction of different interfaces with each other (VGA, Display Port, HDMI, DVI).

What if I take different versions of the HDMI connector

If we mean the form factor - i.e. Micro and the classic size of the connectors, then in order to connect them you need a special. cable (possibly an adapter).

If we are talking about connecting a video card that supports the HDMI 1.4 standard (with 3D), say, to a monitor with HDMI 1.2, then the devices will work according to the HDMI 1.2 standard (without 3D support).

Is the length of the cable important? Which interface should you give preference to?

Yes, cable length matters a lot. The longer the cable, the weaker the signal, the greater the likelihood of various interference, etc. For example, in the general case, it is undesirable for its length to exceed 1.5 ÷ 3 m.

Of course, the interface you choose also affects the length. For example, the HDMI interface allows you to use a cable up to 10 meters long (and with an amplifier, up to 25-30!). While the same VGA cable longer than 3 m can significantly "spoil" the picture.

As for the quality, today one of the best pictures is provided by HDMI and Display Port (resolution up to 4K, with simultaneous transmission of an audio signal, and with almost no interference).

Classic USB and USB Type C

By the way, on new laptops and PCs you can find USB Type C connector ... He, of course, has not yet received widespread use, but it looks promising. Allows to "hot" connect the monitor to a PC, simultaneously transmitting audio-video signals. In some cases, even additional power is not required for the monitor - there is enough power from the USB port.

Perhaps an article on how to properly connect a monitor to a laptop (instruction in steps) will be useful to you -.

That's all for today, good luck everyone!

There are only three options for connecting 2 monitors to one computer. Almost any user can use them, regardless of the experience of using computer technology.

Although the most effective options will have to make certain costs. And, in any case, configure the system and data display mode.

The need for two monitors

There are many options for using two displays at the same time on the same computer.

First of all, such a system with multiple monitors will allow many more windows to be kept fully open.

For a designer, constructor and photo artist, a larger work area means more detail in objects.

The efficiency of work is also increased for users using graphs and diagrams - with two monitors there is no need to constantly switch between several documents, which are conveniently placed on one doubled territory.

Another fairly common possibility of using two screens is gaming applications. With their help, a better view of the sides is provided.

And for laptop owners, an additional wide screen (which can even be used as a plasma TV) allows you to get much more pleasure from the game.

Two screens will also be useful for programmers, giving them the opportunity to observe how the result of their work will look in several browsers.

In production, during the educational process and in the office - each such work or study place may require displaying information from one computer on several monitors at once - this will save both space (you do not have to sit together at the same display) and money (there is no need to purchase another computer).

Connection stages

The first stage of connecting (physical) multiple screens is fairly straightforward.

This will require the presence of a sufficient number of inputs of the appropriate type on the computer, the same number of cables and, if necessary, adapters.

After that, the system can itself determine the presence of two output devices and adjust the image, or you will need to configure it manually using standard Windows (or other OS) tools.

There are only three ways to physically connect 2 monitors:

1. Using a video card with multiple outputs (Fig. 3). If a computer was purchased to work with graphics, and the video card is modern and powerful enough, it may already have several connectors installed - for example, 2 HDMI or 1 VGA and 1 HDM. If there is only one input, you may need to purchase a new video card;

2. Installing an additional video card in the second slot of the motherboard.

This option is suitable if you have an old graphics processor on your computer, and there is no possibility of purchasing a new board with 2 inputs expensively;

3. Using a special splitter (splitter). This method is the most inexpensive and suitable for any computer, however, it can lead to a decrease in the allowable frequencies for monitors.

The picture quality will decrease, which will be especially noticeable when running FullHD video on screens. To work with static images, the use of a splitter is quite acceptable.

Advice: when using a laptop, the possibility of connecting a second monitor should already be provided (there is an additional connector on the side). Changing the graphics card on many laptop computers is not only expensive but also often impossible. However, most modern laptops and even netbooks have a monitor input by default.

Compatible cords and inputs. Ports

To connect monitors to computers, a cable is required to align their connectors. The same number of cables of the correct type are required for two displays.

Connectors can be as follows:

VGA. Until a few years ago, this was the standard connector for most monitors and computers.

Now, to combine an old PC and a new display, or, conversely, an outdated screen and a modern device, an adapter may be required;

DVI. More modern interface providing support for analog and digital signal;

HDMI. The connector is suitable for connecting the computer to devices with clear digital signals, such as televisions and plasma displays.

It is often found not only on PCs, laptops and TV sets, but even on tablets (in the form of miniHDMI);

DisplayPort (mini DisplayPort)... An interface that has a number of advantages over even HDMI.

It is not very common, but it allows you to connect several screens with a high resolution (up to 4K);

USB. A standard port that has been found on computers for over 15 years. Not very suitable for high-quality image transmission and is not often found on monitors.

However, it solves the compatibility problem, for example, for a laptop or netbook with missing video connectors of a different type.

Basically, it is simply impossible to connect the cable incorrectly due to the large number of differences in the plugs.

The only problem that may arise in this case is the lack of suitable adapters. And all you need is to find and buy the right parts.

For laptops with a monitor connector, the task is even easier.

And if you need to connect your computer to a TV or monitor located at some distance, you should use WiFi extenders.

Setting up monitors

After 2 monitors have been connected to the computer, the operating system usually quickly detects and independently configures both.

And on each screen, you can see the same image, which can be convenient when transmitting the same information to a group of users.

Advice: at different resolutions of monitors, the images on them are automatically adjusted. Therefore, it is advisable to use screens with the same aspect ratio (4: 3 or 16: 9).

However, in some cases, automatic tuning does not occur - one monitor starts up normally, the second shows no signal.

Most often this happens due to a bad signal (especially if splitters for 2 monitors are used).

Another reason is the lack of suitable operating system settings.

To fix the problem, do the following:

• Open the "Display" tab - through the "Start" menu (for W7 and higher) or through the settings tab in the desktop properties window (for W XP);
• Select "Screen Resolution Settings".

If both screens are connected, configured and working normally, you will see two numbered images.

Here you can also adjust the resolution of each display and even its orientation (for example, turning it to one side and working with an image in portrait format).

When one of the screens is darkened, press the Find button.

If the monitor was connected correctly, the system after a while will configure it and enable the information to be displayed.

Now you can press the Win and P keys at the same time, after which you can see the settings panel on the screen.

Choosing the item " Duplicate”, You get the same image on each display.

When choosing " Expand»The picture will be enlarged on the number of monitors connected to the computer.

There can be not only two, but also three or even 9.

Laptops sometimes have a special button for more convenient connection and setting up an additional display.

It can be used to switch the image from a laptop to a large display.

In this case, the laptop can show the same image, part of the image, or turn off altogether if the connection was made to improve the usability of the device.

Fig. 14. One of the options for expanding the desktop from a laptop to a monitor.

Hello, friends! In this article, we will figure out how to connect a monitor to a computer. By a computer, we mean a stationary computer. It's the same with laptops, netbooks and ultrabooks.

The first thing it is advisable to do is examine the connectors on the computer. Usually everything is placed on the back panel of the system unit. I have a video built into the processor, so the video outputs are on the motherboard.

Now let's examine the latter for video inputs. For example LED monitor Samsung S27C570H

There are not many connectors - digital HDMI and analog VGA, which is better not to use.

Cables for connecting the monitor to the computer

It is advisable to connect the monitor to the computer without adapters and that the ends of the cable have the same connectors. For example HDMI - HDMI

or VGA - VGA

It is desirable to give preference to a digital connector: DisplayPort, HDMI, DVI. They are arranged in descending order of bandwidth. But, this does not mean that the DVI connector cannot deliver a resolution higher than 1920 x 1080 - no problem, but with one condition. If you intend to use a monitor with a resolution higher than Full HD (1920 x 1080), then it is advisable to use a Dual Link cable. The latter is distinguished by the presence of a large number of contacts.

The picture above shows the different versions of the DVI connectors:

• DVI-I - can carry both digital and analog signals
• DVI-D - transmits only digital signal
• DVI-A - analog signal only

I have not seen DVI-A cables, but they say there are such.

We find the same digital connectors on the monitor and computer. If not included in the kit, we buy the appropriate cable. If your computer and monitor do not have matching connectors, then it is advisable to buy special adapter cables. For example DisplayPort to DVI

Every PC user should be able to use a computer. Because sooner or later there will be a need to buy a new monitor or simply move the computer to another location. In such a situation, it is necessary to be able to disconnect and connect the monitor to the computer. In this article, we will show you how to do this.

The monitor can be connected using the DVI interface... This option is used most often. If your computer has several interfaces, then you should use it first, as it provides the best picture quality.

The monitor can be connected using the VGA interface. The VGA interface is considered obsolete. It should be used only if there is no DVI or HDMI output, as well as in cases where the connected monitor does not support other interfaces.

The monitor can be connected using the HDMI interface. This option is designed to connect a TV to a computer, but if you really need it, you can also use it to connect a monitor. Since laptops are rarely equipped with a DVI video output, HDMI is the most commonly used.

The process of connecting the monitor to the computer

So, if you do not know how to connect a monitor to your computer, then first of all inspect the back panel of your computer. Most likely, at the bottom of the rear panel of the system unit, you will find video outputs (DVI or VGA output, as well as HDMI).

If you find the video outputs at the bottom of the system unit, then these are video outputs and should be used first. If there are no video outputs at the bottom of the system unit, it means that the computer is not equipped with a separate video card and uses integrated graphics. In this case, you must use the video outputs at the top of the system unit (these are the video outputs on).

Then inspect the back of the monitor. Nowadays it is quite difficult to find a monitor without a DVI input. But some of the cheapest or older models may not have it. If your computer has a DVI output, but the monitor does not have a DVI input, then you will have to use the VGA output on the computer and the VGA input on the monitor to connect the monitor. If the computer has only DVI output, and the monitor has only VGA input, then you can use an adapter.

But, in most cases, such problems do not occur. As a rule, the monitor has both DVI and VGA input, and the choice of video interface for connecting the monitor depends only on what video outputs are on your computer.

In order to connect a monitor to a computer using a DVI or VGA interface, you need to connect the video output on the computer and the video input on the monitor using a DVI or VGA cable (depending on which interface you are using). After connecting, you need to tighten the two screws located on the sides of the DVI and VGA cable.

These screws are plastic-tipped and hand tighten. If you do not secure the connection with the screws, the cable may have poor contact, resulting in flickering on the monitor.

To understand the issue, how to connect a monitor to a computer, you need to be clear about what connectors exist. Besides, will you need an adapter to connect the cable that comes with the monitor to the system unit?

Let's look at these two questions and the direct connection procedure.
Currently, there are three types of connectors used to connect a monitor to a computer:

The first connector is the most obsolete compared to the other two. Many experts argued that his days were numbered and that soon he would no longer be used in the production of monitors and. However, to this day, many manufacturing companies are embedding it. Although, if other connectors are installed on the equipment, experts advise not to use it.

The DVI connector is the prototype for VGA. If it is on the monitor and computer, it is better to use it, because it conveys the image clearer.
The third, most modern, type of connector is used to connect a computer and a TV. But in the latest models of monitors, this input is also present and it can be used for these purposes. Moreover, in terms of transmission quality, it is almost identical to DVI.

Connection procedure

First, find the input on the back of the monitor for connecting to the system unit. It can accommodate both a single type and all three connectors at the same time (specifically in this article, a screenshot of a monitor with a single VGA type is used).

Note: some models of motherboards (processors) have an integrated video card on board. Then the discrete one may simply be absent, and in this situation the corresponding connectors will be located near the inputs intended for connecting the keypad and keyboard.

Since, in the current case, there is one VGA connector on the monitor, you need to connect using the cable of the same name, where the corresponding plugs are used at the ends.

Connect it to the monitor and the system unit, fixing it with special fasteners.

Try turning on the power on the system unit and the monitor, after which the image should be displayed. If this does not work out, the problem must be looked for in the connection, cord, or in the accessories.

Caution: Never plug in a monitor while the computer is on. This can lead to a voltage drop and some component parts can simply fail.

What to do if there is no identical connector type on the video card and monitor

Legacy monitors have only one VGA connector. At the same time, there is no such output on modern video cards, there is only DVI and HDMI. In this case, you cannot do without buying a special DVI-VGA adapter.

It must be inserted into the DVI connector on the video card and secured with the fixing bolts.

Connecting via an HDMI cable is made less frequently. At the same time, it has a colossal advantage: the cable length can be up to five meters, which is important for connecting monitors and TVs at a great distance from the system unit.

The connection of a TV and a computer is done in the same way. There is nothing complicated in this procedure.