Modern technologies allow you to completely get rid of unnecessary wires, turning your living room into a real multimedia center. Image broadcast From a laptop to a big screen opens up new possibilities for watching movies, presentations, or playing games. Smart TV owners Xiaomi Mi TV often face the need to quickly display content, but do not know where to start setting up a wireless connection.
The main advantage of using Wi-Fi networks The advantage of a wireless connection is its mobility and the absence of physical cable length restrictions. You can move freely around the room while the video or presentation is playing on the screen. However, for stable operation, both devices must be on the same local network and support the appropriate data transfer protocols.
In this article, we'll take a detailed look at all available synchronization methods, from built-in operating system functions to third-party software. It is critical that the router supports the 5 GHz standard to transmit 4K video without lag. Follow the step-by-step recommendations to set up a high-quality image without compression artifacts.
Preparatory stage and network requirements
Before setting up, make sure your infrastructure is ready to handle heavy video streaming. Connection quality directly depends on the router's power and the absence of interference in the airwaves. If you plan to stream high-definition video, make sure both devices are connected to the same frequency band.
Check what's on yours laptop and TV Mi TV The latest versions of operating systems are installed. Outdated Wi-Fi module drivers can cause connection drops or the device may not appear in the list of available connections. You should also reboot the router if it has been running continuously for an extended period.
☑️ Check before connection
Pay attention to the location of your equipment relative to the access point. Too much distance or thick walls between the router and receivers can significantly reduce channel throughput. To diagnose the issue, you can run a speed test on both devices.
⚠️ Note: "Guest Network" mode on routers often isolates devices from each other, making it impossible for your laptop to detect your TV. Make sure you're connected to your main network.
Using the built-in Projection feature in Windows
Windows 10 and 11 operating systems have a built-in protocol Miracast, which allows you to duplicate your screen without installing additional software. TVs Xiaomi Android TVs typically support this technology out of the box. To get started, press the key combination Win + K on the laptop keyboard.
In the "Connection" menu that opens, the system will begin searching for available displays. If the TV is turned on and connected to the network, its name will appear in the list. After selecting a device, a connection confirmation prompt may appear on the TV screen, which must be accepted using the remote control.
- 📺 Press the "Menu" button on the remote control and select the "Wireless Display" signal source.
- 💻 On your laptop, select the operating mode: "Duplicate" or "Extend".
- 🎮 For gaming, enable "Game" mode in your TV's picture settings to reduce lag.
If the image is delayed, try lowering the screen resolution in Windows settings. This will reduce the load on the wireless channel and make the cursor more responsive. In some cases, disabling window animations in the operating system itself can help.
Broadcast via Google Chrome (Chromecast built-in)
Because Mi TV runs on the Android TV platform and has built-in support for the technology ChromecastThis is one of the most stable ways to stream video from a browser. You'll need Google Chrome installed on your computer, even if it's not your default browser.
Open your browser, click the three dots in the upper right corner, and select "Cast." You'll be prompted to select a source: you can cast a single tab, the entire screen, or a specific file. Once you select the target device, the image will appear on your TV.
| Parameter | Description | Recommendation |
|---|---|---|
| Quality | Depends on Wi-Fi speed | Use 5 GHz network |
| Delay | Average (0.5-2 sec) | Not suitable for fast-paced games |
| Format | Tab or Full Screen | The tab works more stably. |
| Sound | Transmitted automatically | You can disable it in the settings |
This method is especially convenient for watching online video from websites that don't have native Smart TV support. The browser decodes the stream and sends the finished image to the TV, offloading the TV box's processor.
Why is there no sound during the broadcast?
If there's no sound when you select "Cast Tab," check that the "Cast Sound" checkbox is enabled in the tab's settings menu. Also, make sure that no other default audio output device is selected in Windows.
Using the Microsoft Wireless Display app
In some cases, the standard projection menu doesn't recognize the TV, especially on older versions of Windows. In these cases, the official app comes to the rescue. Microsoft Wireless Display, available in the Microsoft Store. It uses the same protocols but offers more flexible connection settings.
Install the app on your laptop and launch it. A "Connect" button will appear in the interface, which initiates a device search. The advantage of this method is the ability to log errors more thoroughly if a connection fails the first time.
Users often encounter antivirus or firewall software blocking the connection. In this case, it's necessary to add the application to the exception list or temporarily disable network protection to test the hypothesis. This is a common problem in corporate networks.
⚠️ Note: The Microsoft Wireless Display app interface may vary depending on your Windows version. If you can't find the option you need, check for system updates in the Windows Update center.
Third-party synchronization programs (LetsView, AirScreen)
When standard tools are unstable, specialized utilities come to the rescue. LetsView or AirScreen (installed on the TV) allow you to create a virtual bridge between devices. They often operate faster than standard Windows protocols.
To use it, you need to install the client on your laptop and the receiver app on your TV via the Google Play Store. Once launched, both programs should find each other using their local IP address. This method is great because it's cross-platform and even works on macOS.
- 📲 Download the AirScreen app to your TV from the app store.
- 🖥️ Install similar software or use the web version on your computer.
- 🔗 Enter the code displayed on the TV screen if automatic connection does not work.
Some programs offer additional features, such as controlling your computer with a remote control or transmitting audio only to external speakers. This turns your TV into a fully-fledged monitor with advanced control options.
Setting up DLNA for file playback
If your goal is not screen mirroring, but viewing movies or photos stored on your laptop's hard drive, it is better to use the protocol DLNA. TV Mi TV will see your computer as a media server and allow you to play content on your own without overloading your laptop.
In Windows, enable "Media Streaming" in the Control Panel. Then, select the folders you want to view. Your computer's name will appear in the "Media" or "File Explorer" section on your TV.
This method is ideal for viewing large 4K files, as the decoding is handled by the TV's processor. The computer, in this case, merely serves as data storage, allowing it to be used for other tasks while viewing.
Common problems and solutions
Despite the simplicity of the technology, users often encounter problems with their laptop not seeing their TV. First, check if AP Isolation is enabled on your router. This feature prevents devices within the network from communicating with each other.
The second common issue is different subnets. If the laptop is connected via cable and the TV via Wi-Fi, they may be in different IP address ranges, blocking detection. In this case, setting up a static IP or switching both devices to Wi-Fi will help.
You should also check your wireless adapter drivers. Go to Device Manager, find your network adapter, and try updating the driver or, conversely, rolling it back to a previous version if the problem occurred after an update.
Why does the picture lag during broadcasting?
Lag is most often caused by a congested Wi-Fi channel. Try switching to the 5 GHz frequency if your router supports dual-band mode. Also, close any background programs on your laptop that may be consuming bandwidth.
Is it possible to connect a laptop without a router?
Yes, many Xiaomi TVs support Wi-Fi Direct or hotspot functionality. This allows your laptop to connect directly to the TV's Wi-Fi signal, but your computer's internet connection will be disabled.
How to improve sound quality over a wireless connection?
In Windows sound settings, select the output device named after your TV. If the sound is choppy, try changing the audio format in the device properties to 16-bit, 44100 Hz to reduce bandwidth usage.