Xiaomi’s modern Smart TVs provide users with ample multimedia entertainment, but often the built-in features are not enough to fully use content from a personal computer. Wi-Fi provides the owner with access to wireless image and sound transmission, which allows you to turn the living room into a real theater without unnecessary wires, this is especially true for those who want to show presentations, watch movies from a laptop hard drive or play games on a large screen.
In this article, we will discuss in detail all the available ways to synchronize devices on a single network. You will learn about the native features of the Android TV and PatchWall operating system, as well as about third-party solutions that may be required in specific situations. Understanding the principles of Miracast and DLNA protocols will help you avoid delays and desynchronization of sound.
Before you start setting up, make sure that both your laptop and your TV are connected to the same wireless network. The difference in the frequency ranges (2.4 GHz and 5 GHz) of the router can affect the stability of the connection, so it is recommended to use the 5 GHz band to transmit high-resolution video.
Wireless screen duplication via Miracast and WiDi
The most popular and fastest way to stream an image is through Miracast (or Intel’s WiDi) technology, which allows you to stream live video with minimal latency, which is ideal for viewing photos or surfing the web. On Windows 10 and Windows 11, this feature is built-in by default and does not require additional software installation.
To get started, you need to activate the reception of the signal on the TV side. On the Xiaomi remote control, find a button that says Input or the signal source icon and select the Wireless Display or Mircast option. On some models, this feature may be called Broadcast and located in the main application menu. Once activated, the TV will go into the waiting mode for connection.
Now, to set up your laptop. Press the Win + K keyboard to open the connection bar. The system will start looking for available devices within range of the network. Your Xiaomi TV should appear on the list. Click on it, and in a few seconds the image from the Mon laptop will appear on the big screen.
⚠️ Note: When using Miracast, a laptop and TV create a direct connection, which can temporarily reduce Internet speeds on other devices on the network.
If you plan to use this method often, it makes sense to adjust the power settings. Go to Control Panel → Power and select high performance mode so that the processor does not reset frequencies while encoding the video stream. This will help avoid jerking images.
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To reduce latency in games, turn off image enhancement modes on the TV, such as “Motion Flow” or “Noise Reduction”, as they add input lag.
Broadcasting multimedia via DLNA and built-in player
Unlike screen duplication, DLNA is designed exclusively for media (video, audio, photo) transmission, which is more energy efficient because the laptop acts as a server and the TV decodes the stream itself, and the picture quality is often higher than in wireless duplication, since there is no compression of the video stream in real time.
To implement this method, Windows needs to enable media streaming. Open the Start menu, search for Media Streaming Options, and run the item found. In the window that opens, click Enable Media Streaming. The system will prompt you to name your media server.
Once confirmed, your Xiaomi TV should appear on the device list. Make sure it has a "Allowed" tick next to it. Now, if you open a standard Windows Media Player or any other compatible player, you can drag the file to the play area and select the output device.
Using Google Chromecast technology
The Android TV operating system on which Xiaomi TVs are based has built-in support for Google Cast technology, which allows you to stream the contents of the tab of the Google Chrome browser or compatible applications directly to the TV screen, a method especially convenient for showing web pages or videos from sites that do not support live streaming.
Open the Google Chrome browser on your laptop. In the upper right corner, click on the three vertical menu points and select Translate... (or Cast). The browser will suggest you choose the source: you can only stream a tab, an entire screen or a single file. Select your Xiaomi TV from the list of available devices.
Importantly, Chromecast requires a stable connection to work properly, and if you’re broadcasting heavy 4K graphics, the router may not be able to handle the load and the image will crumble into artifacts, in which case it’s recommended to lower the output resolution in your browser settings or bring the laptop closer to the router.
⚠️ Note: Some antivirus programs or firewalls can block ports needed to run Google Cast. If you have connection problems, try temporarily disabling network protection.
The advantage of this method is that you can control playback from the laptop keyboard while the TV is just displaying a picture. You can switch tabs, work with documents, and only what you choose to broadcast will remain on the TV.
Third-party applications for enhanced capabilities
Staff tools don't always provide the flexibility or compatibility needed, and in these cases, apps from the Google Play store on the TV and related software on the PC come to the rescue, and one of the most popular solutions is a bunch of client-server applications.
Consider the popular AirScreen or ApowerMirror solution: Install the app on your Xiaomi TV through the app store. Install the corresponding client program on your laptop, or use the web version if the developer provides it. After launch, both devices must find each other. IP-address.
These programs often allow not only to duplicate the screen, but also to control the TV from the computer, transfer files over the air or even use the smartphone as a remote control, which turns the bundle of "laptop-TV" into a powerful interactive complex.
Why is there a desynchronization of sound?
Set up network and router parameters
The quality of wireless data transfer depends on the configuration of your home network. Standard router settings are often optimized for web surfing, not for heavy video streaming. To view 4K content comfortably without buffering, you need to provide a bandwidth of at least 25 Mbps.
It is recommended to enter the router settings (usually at 192.168.0.1 or 192.168.1.1) and check the wireless network mode. Make sure that 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6) is enabled. Using the old 802.11n standard can become a bottleneck for modern resolutions.
You also have to look at the broadcast channel, and if you live in an apartment building, the airwaves can be jammed with neighbors' signals, use the Wi-Fi app on your smartphone to find the least loaded channel, and manually re-write your router settings.
☑️ Optimizing the network for streaming
Comparison of Connection Methods and Problem Solving
To make it easier for you to choose the right way, we have compiled a comparison table of the main characteristics of the connection methods, which will help you quickly navigate depending on your current tasks and the equipment available.
| Method | Delay (Latency) | Image quality | Laptop load |
|---|---|---|---|
| Miracast / WiDi | Low. | High (depending on the signal) | Medium |
| DLNA | Absent. | Original (no loss) | Low. |
| Google Cast | Medium | Good. | High (browser) |
| Third-party Apps | Variable | Depends on the software. | Tall. |
If you find that your laptop can't see the TV, the first thing you do is check the settings of your Windows firewall. Often when you connect to a new network, the system marks it as "Public," which hides the device from others. Switch the network profile to "Private" in Wi-Fi settings.
Also try rebooting the router, and a build-up of routing table errors is a common reason for devices to disappear from the streaming lists, and after restarting, give the system 2-3 minutes to fully restore all services.
⚠️ Warning: If the connection is not established after all manipulations, check if the router is not enabled "AP Isolation: It prevents devices on the network from seeing each other.
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The stability of a wireless connection depends critically on whether devices are in the same subnet segment and whether they are blocked by firewall rules.