Connecting Xiaomi TV to your computer via HDMI: full instruction with problem solving

Turn Xiaomi Mi into a new one TV or Redmi Smart TV It's easier than you think, but it's enough to have one. HDMI-cable to broadcast an image from a PC to a large screen with resolution 4K full HD. But even here, users are faced with the typical problems: no sound, the screen is flashing, or Windows does not recognize the TV as a second display. In this article, we will analyze all the stages of connection, from choosing a cable to fine-tuning the resolution and sound.

Many people mistakenly think that to connect your PC and TV Xiaomi need special adapters or settings in MIUI TV. In fact, 90% of the problems are solved by choosing the right version of HDMI (1.4, 2.0 or 2.1) and the right graphics card drivers. And if your TV supports HDMI-CEC, you can control your computer from the Xiaomi remote, too, we will talk about this below.

Why HDMI? This interface transmits both video and audio over a single cable, supports resolutions up to 8K@60Hz (depending on version), and requires no additional drivers. Alternatives like DisplayPort or wireless (Miracast, AirPlay) lose HDMI in stability and ease of customization — especially on Xiaomi TVs with a proprietary PatchWall shell.

1.What Xiaomi TVs support PC connectivity via HDMI

Almost all Xiaomi and Redmi models have been equipped with at least one since 2018 HDMI-They're portable, but they're different in series and year:

• 📺 Mi TV 4/4A/4C/4S (2018–2020): 2–3 port HDMI 2.0, support 4K@60Hz and HDR10. You may not recognize the permissions above. 3840×2160 When connecting to old video cards.
• 📺 Mi TV Q1/Q2/Q2Q (2021–2023): 3 port HDMI 2.1 (One of them with eARC, support 4K@120Hz and ALLM Ideal for connecting to a powerful PC.
• 📺 Redmi Smart TV X/Pro (2020–2023): 2 port HDMI 2.0, restriction 4K@30Hz on some models. They may require manual audio tuning.
• 📺 Mi TV A Pro (2022–2026): 2 port HDMI 2.0 + 1 AV, Dolby Vision support: suitable for office work, but not for high-performance tasks.

To find out the exact version HDMI-port on your TV, check out the settings → On TV. → Specifications or check the markings on the back, like a port that says, HDMI 2.1 (eARC) is usually highlighted in color.

⚠️ Note: Xiaomi TVs with Full Resolution HD (1920×1080) (Like Mi. TV 4A 32") disclaimer 4K Forcing high-resolution settings in Windows settings will result in a signal missing.

2. Which one. HDMI-Select a cable to connect to a computer

Not all cables are the same: a cheap no-name wire for 100 rubles may not transmit 4K or sound, even if the TV port supports these functions.

For most users, HDMI 2.0 is optimal — it supports 4K@60Hz and is inexpensive. If you have a Xiaomi Q2Q TV or a new Mi TV 6 OLED, and your computer is equipped with an NVIDIA RTX 30/40 or AMD RX 6000 graphics card, it makes sense to take HDMI 2.1 for future upgrades.

⚠️ Cables longer than 5 meters often lose signal at high resolutions. HDMI Or go to DisplayPort. → HDMI adapter-wise.

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If you connect your PC to a Xiaomi TV for gaming, choose a cable marked “Ultra High Speed HDMI” – it is certified for 4K@120Hz and low input lag.

3. Step-by-step instructions: how to connect a Xiaomi TV to a computer

The connection process takes no more than 5 minutes, if you follow the algorithm.

• 🖥️ Computer with exit HDMI (Or an adapter if you have only one. DisplayPort/USB-C).
• 📺 Xiaomi TV with port enabled HDMI.
• 🔌 Cable HDMI The appropriate version (see section above).

Step 1. Connect the cable to the TV and computer. The port on Xiaomi TV is usually signed as HDMI 1/2/3 or ARC/eARC (use any other than ARC unless you need to transfer audio from TV to PC).

Step 2. Turn on the TV and click the Source (or Input) button on Xiaomi's remote. Select the port to which the cable is connected (e.g. HDMI 1).

Step 3: Turn on your computer. In most cases, Windows or macOS will automatically identify your TV as your second monitor.

• On Windows: Press Win + P and select Duplicate or Expand.
• On macOS: Open System Settings → Monitors and activate the Detect Monitor option.

Step 4: If there is an image but no sound, check the audio output settings (see Section 5).

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If the TV doesn’t recognize, try restarting your PC with the cable connected – sometimes it resets driver errors.

4. Set up resolution and refresh rate on PC

Once connected, the Xiaomi TV can display images in sub-optimal resolution (e.g., 1280×720 instead of 3840×2160).

For Windows 10/11:

1. Right-click on the desktop → Screen settings.
2. Select a Xiaomi TV in the Multiple Displays section.
3. In the screen resolution block, set the native resolution of your TV (for example, 3840 × 2160 for 4K).
4. Click on Additional Display Settings → Adapter Properties and check Update Frequency. For 4K, choose 60Hz (if supported).

For macOS:

1. Open System settings → Monitors.
2. Holding Option (⌥), Click on the Scaling button – all available permissions will appear.
3. Select native resolution (e.g. 3840×2160 (4K)).

If the desired resolution is not in the list, update the graphics card driver or use the Custom Resolution Utility (CRU) utility for manual addition.

5. Solving Sound Problems When Connecting via HDMI

One of the most common problems is that sound is coming through a PC speaker, not a TV, and you can fix this by saying,

On Windows:

1. Right-click on the sound icon in the tray → Open the sound parameters.
2. In the Output section, select a device with your TV name (e.g. Mi TV (NVIDIA High Definition Audio)).
3. If the device is missing, click Troubleshooting with sound.

On macOS:

1. Open System Settings → Sound → Output.
2. Select HDMI or the name of the TV (e.g. Xiaomi Mi TV).

If there is no sound even after changing the output device:

• 🔊 Check if the sound on the TV is turned off (Mute button on the remote control).
• 🔌 Try another one. HDMI-Ports on TV (particularly ports) ARC, They can’t transmit sound from PCs).
• 🖥️ Update the sound card driver (on Windows via Device Manager).

⚠️ Note: Some Xiaomi models (e.g. Mi) TV 4A) sound HDMI It only works when the option is turned on. HDMI-CEC in the settings of the TV (Settings) → System system → Management HDMI-CEC).

6. Image optimization: color, delays, HDR

To make the picture on the Xiaomi TV look clear and without artifacts, perform these settings:

Color profile:

• On PC: Select an RGB profile (not YCbCr444) in screen settings if the TV displays colors dimly.
• On TV: in Settings → Picture → Image Mode, select Game (for minimum delay) or Movie (for natural colors).

Delayed input (input lag):

• Turn on the Game mode on the TV (Settings → Picture → Image mode).
• Turn off post-processing: Settings → Picture → Additional → Noise Reduction → Off..

HDR and Dolby Vision:

• On Windows: In Screen Settings → Windows HD Color, enable Use HDR.
• On TV: Settings → Picture → HDR → Auto.

Xiaomi Mi TV Q2Q and Mi TV 6 OLED support Dolby Vision IQ, but to activate it through HDMI requires a source that supports this standard (for example, NVIDIA RTX 30/40 or AMD RX 6000).

7. Control of the computer from the Xiaomi remote (HDMI-CEC)

HDMI-CEC allows you to use the remote from the Xiaomi TV for basic computer control (on/off, volume control, source switching) to activate:

On TV:

1. Go to Settings → System → HDMI-CEC Management.
2. Enable the HDMI-CEC option (may be called Anyview Cast on some models).

On Windows:

1. Install an HDMI-CEC driver for your graphics card (e.g., NVIDIA HDMI Audio Driver).
2. Enable CEC support in the graphics driver settings (for NVIDIA: NVIDIA Control Panel → Display → HDMI settings).

Limitations:

• 🎮 Xiaomi remote does not replace the keyboard / mouse – it only manages media functions (pause, volume, switching inputs).
• 🖥️ On macOS HDMI-CEC It is limited (volume control only).

8. Alternative ways of connecting (if HDMI does not work)

If HDMI connectivity is not possible (for example, a broken port on a PC or TV), consider these options:

• 🔄 DisplayPort → HDMI: Use an active adapter (for example, Club3D CAC-1085) You can connect your PC with DisplayPort to your TV. Please note that passive adapters only work until you reach the end of the spectrum. 1080p.
• 📶 Wireless connection (Miracast/AirPlay): Windows. 10/11: Win + K → Select a Xiaomi TV (must support Miracast). on macOS: AirPlay (requires Apple) TV or TV with AirPlay support 2, Like Mi. TV Q2Q).
• 🔌 USB-C → HDMI: For Thunderbolt laptops 3/4 (Xiaomi Mi Notebook Pro is suitable for adapter USB-C to HDMI (supportive 4K@60Hz).

⚠️ Attention: Wireless technologies (Miracast, AirPlay) add latency of up to 100 ms, which is critical for gaming or video editing.

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USB-C → HDMI adapters often require separate power to output 4K. Check the adapter specifications before buying.

FAQ: Frequent questions about connecting Xiaomi TV to PC