Modern users often face the need to display images from a computer to a large screen of a TV or projector. In the Xiaomi ecosystem, this feature is implemented through wireless display technology that allows you to broadcast a picture without using unnecessary wires. This is especially convenient for presentations, watching movies or playing games on the big screen. However, the initial setup process can raise questions for those who have not previously encountered Miracast or Wi-Fi Direct protocols.
The main challenge is that the PC and Xiaomi device must be on the same network and correctly "see" each other. Windows 10 and 11 have built-in tools for working with external displays, but they require the right configuration of the firewall and network profiles. If you ignore these nuances, the search for devices can go on indefinitely or end in a connection error. In this article, we will discuss in detail every step necessary for a stable bundle of computer - TV or console.
Before you go to software settings, you need to make sure that the equipment is physically ready. Both devices must be connected to the same Wi-Fi network (2.4 GHz or 5 GHz frequency must match), otherwise detection is impossible. Often users make an error by connecting a laptop to the guest network and a TV to the main one, which makes their interoperability impossible. It is also worth checking that the router does not include client isolation (AP Isolation), which prohibits devices within the network from communicating.
Technical requirements and equipment preparation
To successfully organize wireless broadcasting, your computer must support the Wi-Fi Direct standard. In most modern laptops and PCs with external adapters, this feature is built in by default. However, wireless module drivers must be relevant, since older versions may not work correctly with media transmission protocols.
Xiaomi devices, whether they are PatchWall Smart TVs or MI Box TVs, usually have a pre-installed app to receive the signal. Depending on the region and the firmware version, it can be called Wireless Display, Cast, Translation or Miracast. You need to find and run this component on the TV in advance so that it goes into the waiting mode for connection.
⚠️ Note: If your router distributes the network at 2.4 GHz and 5 GHz simultaneously under the same name (Smart Connect), try temporarily splitting them or forcefully switching one of the devices to another frequency.
The list of necessary components for setting is as follows:
- 📺 Xiaomi TV or console with support Miracast/Wi-Fi Direct.
- 💻 PC or laptop running Windows 10/11 wifi-free.
- 📡 Router operating in standards 802.11n/ac/ax.
- 🔌 Stable power supply for all devices during setup.
Activation of reception mode on the Xiaomi TV
The first step is to prepare the host device. The interface of Xiaomi TVs may vary depending on the year of release and the regional version, but the logic of the action remains the same. You need to find the system application responsible for external connections. In global versions of firmware, it is often placed in a separate folder or in the top menu.
Once the app is running, the screen will have a waiting interface, which can show the name of the device that the computer will see, and an instruction that the signal is being searched for. Some models require confirmation of the remote connection when the PC tries to establish a connection, which is a security measure so that neighbors do not accidentally connect to your screen.
If the built-in app is not there, try voice search on the remote by saying "Wireless display" or "Screen cast." In some cases, especially on older models, the functionality can be hidden in the network settings menu. It is important that at this stage the TV does not go to sleep, so the power saving settings should be temporarily turned off.
What to do if the application does not start?
The activation process can be described by the following actions:
- 🔘 Press the Home button on the remote and find the Wireless Display icon".
- 📡 Wait for the message “Ready to connect” or similar status to appear.
- 🔊 Turn down the volume of the TV, as system sound can be heard when connected.
Connection settings in the Windows operating system
After the TV is ready, we move to the computer. In Windows 10 and 11, external displays are unified and accessible through the notification center or hotkeys. The fastest way to call the projection menu is to press the Win + K key combination. This will open the Connect sidebar, where the system will start searching for available wireless monitors in range.
If the device is not found automatically, you need to check the projection parameters. → System system → Projecting on this PC. Here it is important to make sure that the function of adding a wireless display is installed. Windows can offer to download an additional component if it is not in the system. PIN-The code for pairing was “Never” (for testing) or “First time” to make connection easier.
⚠️ Warning: Antiviruses and third-party firewalls (e.g. Kaspersky, ESET) If the connection fails, try temporarily disabling network protection or adding an exception rule for the Wireless Display service".
In some cases, you need to manually set up your network profile, make sure your network is "Private" rather than "Public." In the public profile, Windows defaults to hiding your computer from other devices, and you can change this at the network control center or through the parameters of your current Wi-Fi connection.
The algorithm of actions in Windows:
- 💻 Press Win. + K or go to the Start menu" →"Parameters" →"System system" →"Display".
- 🔍 Click the "Connect to Wireless Display" button at the bottom of the window.
- ✅ Choose your Xiaomi TV from the list of devices that appear.
Solution: drivers and network protocols
The most common cause of problems is an outdated Wi-Fi adapter driver. Even if the Internet is stable, the wireless module may not properly process data packets for Miracast. Go to the website of the manufacturer of your laptop or motherboard and download the latest version of the driver for WLAN. Don't rely on automatic updates through Windows Device Manager, as it often offers basic rather than functional versions.
Also worth looking at is security protocols, some corporate networks or complex home configurations use encryption standards that conflict with Wi-Fi Direct. In such cases, the broadcast may simply not start. Check that the router is on WPA2-PSK or WPA3, and old standards like WEP are off.
☑️ Diagnostics of connection
If you are using a desktop PC without built-in Wi-Fi, you will need to USB-Adapter: Built-in Ethernet (wired connection) does not support direct video transmission over Wi-Fi Direct, although it is theoretically possible to toss the image through the Wi-Fi Direct. DLNA, But it's another technology that doesn't provide full-screen duplication (Miracast), and for a PC with wired Internet, the solution is one thing: installing a compatible Wi-Fi whistle.
| Problem. | Possible cause | Decision |
|---|---|---|
| PC doesn't see TV | Different subnets or customer isolation | Check the router and network profile |
| Black screen when connected | The problem with codecs or DRM | Update the graphics card driver |
| Severe image delay | Wi-Fi channel overload | Switch to 5GHz |
| No sound on the TV. | Output device not selected | Select TV in Windows Sound Settings |
Optimizing Image Quality and Delay
Once you've successfully connected, you may encounter compression artifacts or mouse cursor delay. This is normal for wireless technology, because video stream is compressed in real time. To minimize the lags, you can change the display mode on Windows. Press Win + P and select "Second Screen Only" - this will reduce the load on the graphics card, since it does not have to render the image on two monitors at once.
Resolution and refresh rate also play a role. If your TV supports 4K but the Wi-Fi signal is weak, the system can automatically reduce the quality to 1080p to maintain smoothness. In the display settings (Settings → System → Display → Additional Display settings), you can force 60 Hz if the adapter and router allow.
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To watch movies with subtitles through a wireless connection, it is better to use the built-in TV player (via the TV). DLNA/UPnP), It's not broadcasting the entire screen of the PC, it's going to reduce the load on the network and it's going to take away the audio.
If you plan to play games, remember that the wireless display always introduces an additional input lag. For shooters or dynamic fighting games, this can be critical. In such cases, the HDMI cable remains the only option to achieve minimal response.
Alternative methods of broadcasting and software
If the standard Miracast protocol is unstable, you can use third-party software. Applications like LetsView, ApowerMirror or TeamViewer allow you to broadcast the screen over a local network or even over the Internet. They often have their own codecs that work faster than standard Windows tools.
For users who want to stream content from the Chrome browser, there is a built-in Cast feature. By clicking on the browser menu and selecting "Translate", you can send a tab or the entire desktop to a Xiaomi TV that supports Chromecast built-in. This often works more stable than the system Miracast, especially for video content.
It's important to understand the difference between technologies: Miracast creates a direct Wi-Fi Direct connection, while Chromecast and third-party apps use a router as an intermediary. If the router is weak, the second option will work worse. Choose the method depending on your infrastructure.
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The stability of a wireless display depends on the quality of the Wi-Fi signal and the absence of interference in the air, and always give priority to connecting at 5 GHz.