Wireless monitor: how to connect and set up? Mirroring a computer screen to a TV via wifi. Connecting a TV to a computer via Miracast

The buildings 21.10.2019
The buildings

Miracast is a wireless data transmission technology developed by Microsoft. It is needed so that all the gadgets you use connect to each other and broadcast information without the help of an HDMI cable. Today we will analyze the pros and cons of this technology, and talk about how to enable and how to set up Miracast on Windows 10.

If you decide to try working with Miracast, then it is not at all necessary to enter long queries like “miracast windows 10 free download in Russian” in your search box. You can find it in the built-in functions of your operating system. Since you do not need to download Miracast for Windows 10 to your computer, let's immediately move on to how to connect this technology.

Setting

  1. From the Start menu, under Settings, go to Device Settings
  2. In the window that opens, on the right, find the button that is responsible for adding new devices, and click on it
  3. In the list of equipment that opens, select Miracast
  4. See how the scanning process goes, after which, in the list of found equipment, select the TV model you need and connect to it

Via WiFi

If you have selected the WiDi module from Intel to transmit the image, then before creating a connection, you need to install the Intel Wireless Display application on your computer. Installing it is very simple, follow the prompts of the automatic setup wizard.

Connection

A prerequisite for creating such a wireless connection between two devices is a Wi-Fi adapter, as well as an operating system installed on one of the devices higher than Windows 8.1. In our case, we are talking about the "ten", so we know that this condition is met. You also need to know that older TV models do not always support Miracast, but this problem is successfully solved by purchasing a special adapter.

And here are the instructions for connecting:


What to do if Miracast on Windows 10 is not working

Let's look at the main reasons why Miracast may not work correctly or not work at all.

  • Reason 1

Your Wi-Fi adapter does not support Miracast or the necessary drivers are not installed for it. The solution follows from the description of the problem: you can either purchase the correct adapter or install the necessary drivers (go to the official website of the manufacturer of your adapter and download latest versions drivers from there). By the way, if you don’t find drivers for your device on Windows 10, download which ones are. For example, those for the "eight" may also be suitable.


Miracast architecture (transmitter side)

Compatibility of Miracast and WiDi version 3.5 means commonality of basic functionality in devices of both standards. What extras are there in WiDi but not in Miracast? Today there are three:

  • mandatory support for HD video up to 1080p (although the Miracast standard allows a high resolution, but does not require all devices to support it);
  • support for HDCP (High-bandwidth Digital Content Protection) content protection system;
  • the presence of two additional video modes - extended and multitasking (about them a little later).
Thus, it can be said that WiDi is currently a functional extension of Miracast.
WiDi is supported by most existing Intel mobile platforms (and will most likely be supported in the future). As already noted in testing, the technology belongs to the category of "one-button", that is, extremely simple for users.


The process of connecting a wireless display using the example of Samsung Galaxy S4

Well, now it's time to talk about modes. Native to WiDi/Miracast is Clone Mode– the same picture is displayed on the remote display as on the local one, with the same resolution.
Dual mode also applies to the main ones; content is played in it on the remote display, and the main one is used to control and display service information. This mode supported via the Android Presentation API.
Advanced mode available only in WiDi (and, accordingly, available only for devices on Intel platform atom). In it, the video mode is turned on automatically when the user launches multimedia content on a player using the Android Media Player framework. The resolution of the picture remains "native" up to 1080p. However, local video rendering can be disabled to reduce power consumption.
Finally, the most advanced Multitasking Mode, in which the video player sends an image to a remote display, and on the local one at that time the user does what he wants: browses the Internet, receives calls or even watches a completely different video, also in FullHD resolution!

Use cases for dual display mode:

Dual display mode is not just for watching videos. It is quite easy to sketch out a list of its life applications:
  • internet browsing on big screen(smartphone acts as a touchpad);
  • filling out forms or typing small texts (smartphone - touch keyboard);
  • games (smartphone - touch gamepad / joystick);
  • mobile workplace(smarfton is a computer, peripherals are connected to it via Bluetooth).



Building an Android App for Dual Displays

Support for a second wireless display in Android 4.2 (API Level 17) is implemented using the class presentation, allowing:
  • implement support for a second display in applications without caring about the way it will be physically connected;
  • work with MHL, HDMI, Slimport or Miracast compatible devices;
  • control the second display independently of the first.
presentation is a base class and should be extended:
public class DemoPresentation extendsPresentation(
You also need an association with a class display while creating. Presentation n is inherited from Dialog, and as for Dialog, then its life cycle attached to Activity.
Before using presentation, you need to select a display, which can be done in two ways:
1. MediaRouter API (in API 16) - the system will choose the best display for you
// Get the media router service. MediaRouter mMediaRouter = (MediaRouter)getSystemService(Context.MEDIA_ROUTER_SERVICE); // Use the MediaRouter that supports live video MediaRouter.RouteInfomRouteInfo =mMediaRouter.getSelectedRoute(MediaRouter.ROUTE_TYPE_LIVE_VIDEO); Display presentationDisplay= mRouteInfo.getPresentationDisplay();
2. Display Manager API (in API 17) - a list of displays.
// Get the display manger service. DisplayManager mDisplayManager = (DisplayManger)getSystemService(Context.DISPLAY_SERVICE); // enumerate the displays Display displays =mDisplayManager.getDisplays(DisplayManger.DISPLAY_CATEGORY_PRESENTATION);
Addendum MediaRouteButton to the application:
//Sets Media Route Button to second screen mode mediaRouteActionProvider.setRouteTypes(MediaRouter.ROUTE_TYPE_LIVE_VIDEO); //Launches the Wireless display setting intent startActivity(newIntent("android.settings.WIFI_DISPLAY_SETTINGS"));
In res/menu/default.xml:

How to force Presentation API work:

  • onRouteUnselected
  • onRouteSelected
  • onRoutePresentationDisplayChanged
And inside the activity that owns the Presentation:
  • onResume
  • onPause
APIs for controlling WiFi displays are present within Android AOSP, but are not part of the Android framework. The wireless display settings can be called up via Intent android.settings.WIFI_DISPLAY_SETTINGS, but it is also not included in the framework. Some manufacturers use other options: Samsung - com.samsung.wfd.LAUNCH_WFD_PICKER_DLG, HTC- com.htc.wifidisplay.CONFIGURE_MODE_NORMAL.
All APIs shown in the figure below are internal to Android 4.2/4.3. They are part of AOSP and are freely distributed, but they are not included in the frameworks and are not required to work.

In conclusion, we note that you can test applications for two displays both on real hardware that supports this functionality, and on emulation, available starting with Android 4.2 in the developer options. You can select the resolution and dpi of the second virtual display and get an overlay showing it.

This post was prepared using IDF 2013 materials by Xavier Hallade and Costas Stylianou.

Allows you to comfortably view videos and photos, play computer games or just surf the internet. Therefore, many users connect a laptop to a TV. This can be done with special cable HDMI. Then the screen of the TV device will become like a second monitor to project the image from the laptop. But it's much easier to connect a laptop to a TV via wifi. There will be no need to place equipment as close to each other as possible or connect and hide wires. So today we will tell you about how different ways connect laptop to tv via wifi.

Most modern TV devices are equipped with a feature that allows you to access interactive content. Due to which you can easily display on the TV screen a wide variety of information from the Internet - movies, videos, music, games, blogs, etc. This technology is called smart.

The most common and advanced platforms are Samsung Smart TV and LG Smart TV. Other manufacturers are also actively implementing this technology - Sony, Philips, Panasonic, Thomson, etc.

So we will connect such a TV with Smart TV to a laptop. This is done as follows:


If you have configured everything correctly, then you can launch movies in two clicks. Just "highlight" any video file on the laptop, click on it with the auxiliary mouse button and select the "Play to ..." item. In the list that opens, you just need to click on your TV model. For example, Sony Bravia KDL-42W817B. After that, the broadcast on the big screen will start automatically.

For reference! Videos in MKV format will most likely not be played with this connection. Therefore, choose files with the AVI extension.

Connect TV to laptop using WiDi

First of all, this method is good because it does not require any "sharing" of folders and sharing settings. WiDi technology uses the Wi-Fi standard and simply duplicates the picture from the laptop to the screen of the TV device. True, there are a couple of nuances. You can organize the connection in this way only if the laptop:

  • Assembled on the basis of the third generation Intel processor;
  • Equipped with Intel Wi-Fi module;
  • Integrated Intel graphics;
  • OS - Windows 7, 8, 10.

In some cases, you may also need to install the Intel Wireless Display software. As for the TV itself, it must support Miracast (WiDI) technology. Majority modern models, which have been released since 2012-2013, have this feature by default.

The WiDi connection procedure itself includes several steps:


It also happens that you did everything as described above, but the TV does not see the laptop. Then open the Charms-panel on the laptop, click the "Devices" tab. Then select "Projector" and add your wireless screen. We also update Wi-Fi drivers.

We connect the TV to the laptop through special software

You can also connect two devices via wifi to display an image using various programs. Today, there is a lot of all kinds of software for playing content on a TV without using wires. Although the most popular are:

  • Samsung Share (has a simplified interface, but is mostly compatible only with Samsung devices);
  • share manager.

And of all these programs, the home media server is the most stable application in operation. In addition, it is suitable for almost all TV models from different manufacturers. Using the example of a home media server, we will tell you how to display an image from a laptop on a TV:

  1. We download the distribution kit for free from the official website of the developer - http://www.homemediaserver.ru
  2. Install the program on the laptop.
  3. Let's launch it. A table will appear with a list various devices. In this list, you need to select the one to which the content will be transmitted. That is, we look for and click on your TV model. Click the "Next" button.
  4. The program will offer to share certain folders. By default, these are "Video", "Music", "Pictures". However, you can manually specify other folders where you store your movies or photos so that you can then watch them on the TV screen. Just click on the right button "Add" with a big green plus.
  5. Then we confirm the scanning procedure. Click "OK" and "Finish".

Now the various content that you have specified in the home media server program will be displayed on the big screen of the TV.

Other similar applications work on the same principle. So there shouldn't be any difficulty in using them. So you learned how to connect a laptop to a TV via a wireless wifi network using special software.

What to do if there is no wifi module on the TV?

Wireless connection with a laptop via Wi-Fi is impossible if there is no special module. For example, it is not available on older TV devices that were released more than 5 years ago. Naturally, without a cable, a laptop cannot be connected to such a TV. How to be? You will have to use additional devices.

For example, an adapter can help expand the capabilities of a TV. Usually it is inserted into the HDMI port. What similar gadgets can we recommend? It:

  • Google Chromecast;
  • Android Mini PC
  • Compute Stick;
  • Miracast adapter.

All of the adapters listed above will allow you to install wireless connection and transfer the image from the laptop to the TV.

In Windows 10, you can find one very interesting feature called Miracast, which can transmit image and sound wirelessly, in other words, via Wi-Fi. Thus, if you want to watch a movie on a large TV and monitor, connect Miracast.

This guide is just aimed at helping users to master the wonderful technology of wireless data transmission. I will show everything with an example. Let's take a look at some connectivity issues.

How to connect a TV or monitor via Miracast?

First, make sure your TV or monitor supports wireless network(Wi-Fi), and now let's get down to business.

On your Windows 10 computer, hold down the keyboard shortcut Win+P and immediately opens the "Project" section on the right. At the very bottom we find the item "Connecting to a Wireless Display" and click on it.

The search will start immediately wireless devices, to which we will transfer the picture, in other words, a TV, monitor or something else.

If something was found, click on this device, by the way, if the screen on the TV / monitor is turned off, be sure to turn it on.

What do we get? And we get an image from a computer monitor, which is projected onto a TV screen, and the picture will be transmitted in good quality and without interference.

What to do if Miracast is not working?

As you can see, we performed a minimum of actions and the connection took us less than five minutes. But, as always, there may be some problems, and here, by the way, what are they.

No Miracast support

In other words, your Wi-Fi adapter simply does not support Miracast, or the necessary drivers are not installed for the adapter. This is true if you do not have the "Connect to a wireless display" item.

If the item is still there, then when you click on it, you can see a message telling us that the device does not support Miracast. Therefore, for many, this article may be useless. Of course, you can purchase another Wi-Fi adapter that supports this technology.


You have a laptop or other device with a wireless adapter that is from, say, 2012 and later. While doing this, you notice that Miracast is not supported. Most likely, the problem here is in the drivers, for example, they were installed incorrectly. I advise you not to rely on the system to install everything itself, so it's better to go to the official website of your adapter and download the latest drivers from there, and then install it.

If there are no drivers for Windows 10 for your devices, don't despair. Download what data, for example, may be present for Windows 8, they may also be suitable.

Useful:

Connecting to a TV or monitor via Miracast takes a very long time

Also a very common reason that is familiar to us when connecting any other device to WiFi networks- the connection is endless.

A little higher, I described that you need to install the latest drivers for the Wi-Fi adapter and hope that the system has already installed them automatically. This method can also work here, but not always.

There are few versions here, perhaps the problem is with the TV itself, because some devices can connect immediately, and some cannot, or the technology is not supported by an external device. You can try restarting both the TV and the computer, it can help, and you should also take into account that old equipment can greatly ruin your life, that is, it will be possible to transfer the image to the TV or monitor, but there will be terrible brakes on both devices.

Don't want to watch your favorite movies on the small screens of your mobile devices? It's time to introduce such technology as SmartTV or, as it is also called, Miracast.

Each phone operating system has its own rules. For the most part, they adhere to Miracast technology, and only apple devices have again stood out from their environment, preferring a different standard.

How does Miracast work? Just like the HDMI cable for computers and laptops. Its principle is quite simple, but has not yet been fully developed, so some errors are possible. It works only for those TVs that have the so-called SmartTV, that is, an Internet connection via wireless WiFi. This is the main condition for the operation of such a device from the point of view of the receiving party.

In addition, it is worth considering the fact that everything that is displayed on your screen will be broadcast. That is, if you, for example, show a movie to your friends from your phone, and at that moment an alert from Skype comes to the tablet, all your surroundings will know about it. This should be taken into account in the future. So don't touch the screen and turn off all alerts.

So look at it like HDMI without a cable.

Which devices can interact with this technology

If you have a computer with operating system Windows version 8.1, you can connect it to your TV without a cable. The same, of course, applies to mobile devices with the same OS. Androids have this feature since version 4.2.

As far as devices worth tinkering with, this list includes the unchanged Linux and Apple. In order for everything to work normally in the first case, you should use certain hacks that you need to look for on the Internet. Apples have similar AirPlay technology. Thus, Miracast is mainly developed only for Windows and Android.

If you have TVs that don't support this technology, the Roku 3 and Roku Streaming Stick are great options. Thanks to them, you can connect your screen to such technologies without any problems.

Main problems

First, the use of technology has a special approach. You will have to put your mobile device away and not touch it until the end of the broadcast. If you use during the video any additional tools, they will be displayed. The same goes for games. Therefore, you should be careful with this.

Secondly, as already mentioned, the system sometimes crashes, which causes a lot of problems for its creators and authors.

We recommend reading

Top