Xiaomi TVs (Mi TV, Redmi Smart TV, Xiaomi TV A Pro, and others) have one or more HDMI ports to connect external devices such as consoles, game consoles, laptops or sound systems. However, many users face the problem that after connecting the cable, the screen remains black, and the TV does not recognize the source of the signal, the reason most often lies not in the port failure, but in the wrong settings or missed activation steps.
In this article, you will find step-by-step instructions for enabling HDMI on Xiaomi TVs of all generations, including models with MIUI TV and Google TV.
- 🔌 How to physically connect the device to the port HDMI (including the choice of cable and connector).
- 📺 How to switch the signal source on the TV through the remote or buttons.
- ⚙️ What settings should be checked if HDMI not working (resolution, sound, mode) HDMI-CEC).
- 🛠️ Typical errors and ways to fix them (no image, no sound, flashing screen).
The manual is suitable for all current Xiaomi models, including Mi TV 4S/4A/5X, Redmi Smart TV X, Xiaomi TV Q2/Q1E and others. If your TV is released after 2018, there should be no compatibility problems - all modern devices support HDMI 2.0/2.1 standards.
1.Preparation: Which cable and HDMI port to choose
Before you turn on HDMI on your Xiaomi TV, make sure you use the right cable and port, which will determine whether the image and sound will be transmitted in the right quality.
🔹 Cable HDMI:
- 🔄 For Full. HD (1080p) Any certified cable will be suitable. HDMI 1.4.
- 🎮 For 4K @60 Hz or game consoles (PS5, Xbox Series X is needed HDMI 2.0 or newer.
- 📺 For 8K or 4K @120 Hz (on Xiaomi models) TV Q2 75") required HDMI 2.1.
⚠️ Note: Cheap, uncertified cables may not support high resolution or HDR. If after connecting the screen flashes or the image “crumbles” – replace the cable.
🔹 Port port HDMI TV-wise:
- 📌 On the back of Xiaomi TV usually 2-3 ports HDMI (numbered: HDMI 1, HDMI 2 etc.).
- 🎯 In the models with HDMI 2.1 (e.g. Xiaomi) TV Q2) High-resolution port is usually marked separately (may be signed as a port). HDMI 2.1 or eARC).
- 🔊 Port with a sign ARC eARC is designed to connect sound systems (soundbars, receivers).
| Model TV set | Number of HDMI ports | Support for HDMI 2.1 | Recommended port for 4K |
|---|---|---|---|
| Mi TV 4S 55" | 3 | ❌ No. | Any (max. 4K @30Hz) |
| Redmi Smart TV X55 | 3 | ❌ No. | HDMI 1 (max. 4K @60Hz) |
| Xiaomi TV A Pro 55" | 3 | ✅ Yes (HDMI 3) | HDMI 3 (for 4K @120Hz) |
| Xiaomi TV Q2 65" | 4 | ✅ Yes (HDMI 3/4) | HDMI 4 (with eARC) |
💡 Tip: If you connect the game console (PS5, Xbox, use the port HDMI 2.1 (if any) – this will enable the 120 Hz mode and VRR (frame-rate).
2. Connecting the device to a Xiaomi TV
Now, let's get to the connection itself. Follow the instructions to avoid the typical errors.
- 🔌 Turn off the TV and the connected device (set-top box, console, laptop) from the socket, which will protect the ports from surges of voltage.
- 📍 Connect the cable. HDMI to the port on the TV (for example, HDMI 1) Remember the port number, you'll need it later.
- 🖥️ Connect the second end of the cable to the source device (e.g. Apple) TV or NVIDIA Shield).
- ⚡ Turn on the external device first, then the Xiaomi TV (this is important for proper signal initialization).
⚠️ Note: If you connect a PC or laptop, make sure that the graphics card settings select the correct output mode. For example, on Windows, you need to go to Settings → System system → Display and select the TV as the main or backup screen.
Is the cable connected to the correct port (HDMI 1/2/3)?
Is the external device (console, console) enabled?
Is the right signal source on the TV selected?
Is the cable checked for integrity (no damage)?
-->
🔍 How to check if the TV has detected the device?
- 🔄 On the Xiaomi remote, press the button SOURCE (or INPUT).
- 📺 In the menu that appears, select the port to which the cable is connected (for example, HDMI 1).
- 🖥️ If the device is recognized, the name of the device will appear on the screen (for example, Apple). TV or PlayStation 5).
If the screen is black after these actions, move to the next section, where we will discuss possible causes and solutions.
3. How to switch the signal source to HDMI
One of the most common reasons why HDMI It doesn't work for Xiaomi. TV — The wrong signal source, even if the cable is connected, the default TV can show the signal. TV (Broadcasting or Home (main screen) MIUI TV/Google TV).
📌 Methods of source switching:
Where is the SOURCE button on Xiaomi remote?
- 🎛️ With remote: Press the button SOURCE (or INPUT). In the menu that appears, select HDMI 1, HDMI 2 or another port to which the device is connected. OK.
Through the settings menu:
- Click Home → go to Settings (cog icon).
- Select Devices and Accessories → Signal Sources.
- Press the right HDMI port.
- 🔘 Using buttons on the TV: If the remote is lost or not working, press the physical button SOURCE (usually located on the bottom or side panel of the TV and select HDMI volume-button.
- 🎮 For game consoles (PS5, Xbox: Enable Game Mode (in image settings) – this will reduce input delay (input lag).
- 🎵 If there is no sound at all, check if the cable is connected to the port with support ARC (If you use a soundbar, is the sound on an external device (e.g., on the soundbar) turned off? PS5 In the sound settings you need to select HDMI Device).
- ⚠️ On certain devices (e.g, NVIDIA Shield) HDMI-CEC You need to include them separately in their settings.
💡
If your PS5 or Xbox TV doesn’t recognize your device, try turning off and re-enable your HDMI cable when your TV is running, sometimes helping to reset the port.
5. Typical HDMI issues on Xiaomi TV and their solutions
Even when you're connected properly, you can have errors, and we'll look at the most common ones and how to fix them.
| Problem. | Possible cause | Decision |
|---|---|---|
| No image, black screen. | Not selected HDMI source, cable damaged or not supporting resolution, external device incorrect output settings. | Check source selection (SOURCE button). Try another cable. On PC/laptop, press Win+P and select Duplicate. |
| No sound through HDMI. | The audio is output to another device (for example, to PC speakers). HDMI port does not support ARC. On the external device, HDMI audio is disabled. | In the TV's audio settings, select HDMI. Check the audio settings on the connected device. Use the ARC port for soundbars. |
| Image flashes or "crumbles" | HDMI cable does not support the resolution selected. HDR is enabled on your TV or device, but the cable is not certified. | Lower the resolution on an external device (e.g., from 4K to 1080p). Turn off HDR in your TV or device settings. Replace the cable with a certified HDMI 2.0/2.1. |
| The TV does not respond to the remote of the connected device | HDMI-CEC disabled. | Turn on HDMI-CEC in the settings of the TV and external device. |
🔧 Additional advice:
- 🔄 After the connection PS5 or Xbox TV says No signal, try turning off and switch on the cable again HDMI live-TV.
- 📺 On Google models TV (for example, Xiaomi TV A Pro) may require firmware updates to work properly with new devices.
- 🛠️ If it's a port HDMI Physically damaged (e.g. bent contacts), contact a service center. Self-repair may cause the TV to fail.
💡
If Xiaomi TV does not see the device through HDMI, 90% of the time the problem is solved by choosing the right source of the signal (SOURCE button) or replacing the cable.
6. Features of connecting specific devices
Different devices may require additional settings when connecting to Xiaomi TV via HDMI.
🖥️ Connecting a laptop or PC
- 📌 On Windows: Press Win + P and select Duplicate or Second Screen Only. If the resolution is incorrect, go to Settings → System system → Display and install 1920×1080 or 3840×2160 (4K).
- 🐧 On Linux (Ubuntu, Mint), you may need to manually configure output via xrandr: xrandr. --output HDMI-1 --mode 1920x1080 --rate 60
- 🍎 On Mac, go to System Settings → Monitors and select Mirror Mode.
- 🏠 Nintendo Switch: Use the official docking station from Nintendo. Select the console settings 1080p (Switch does not support Switch 4K). If the image flashes, try another cable. HDMI.
- 🛡️ NVIDIA Shield: Go to the Settings → Display and sound → Permission. 4K → 59.94 Hz (or 60 Hz). Turn it on. AI Upscaling to improve the quality of Full HD-content.