Set up the screen resolution on the Xiaomi TV: from basic parameters to hidden features

The wrong resolution on Xiaomi TV can ruin the viewing experience: the image will be blurred, the text will be unreadable, and games will be slowed down due to the wrong refresh rate. 4K-TVs where automatic settings are often used 1080p instead of native permission 3840×2160. In this article, we will discuss how to manually adjust the resolution for different signal sources – from consoles to PCs – and avoid typical errors.

Many users do not even know that their Mi TV 4S or Redmi Smart TV Supports multiple zoom modes, hidden options for gamers and individual profiles for HDMI-We're going to show you where to look for these settings, how to test the quality of the picture, and what to do when the TV doesn't see the resolution, and why it's sometimes better not to put the maximum resolution, for example, when you plug in the old one. DVD-player or retro console.

Immediately note: the instruction is relevant for all modern Xiaomi TVs based on Android TV Google TV, including the Mi models TV Q2, Mi TV A Pro, Redmi TV The only differences are in the location of menu items, which we will warn you about separately.

Why does Xiaomi TV automatically choose the wrong resolution?

Xiaomi TVs by default use the signal autodetection function (EDID), It's a system that analyzes the capabilities of the connected device and chooses the "safe" mode, but it's not perfect:

• 🔌 Problems with HDMI-Cable: Cheap or damaged cables do not support high resolutions (e.g., high resolution cables, 4K@60Hz demands HDMI 2.0 higher).
• 🖥️ Signal source limitations: an old console or video card can "lie" to the TV about its capabilities.
• ⚙️ Resettings HDMI-port: after updating the firmware or resetting to factory parameters, the port can operate in compatibility mode.
• 📺 Xiaomi’s signature “chips”: some models artificially lower the resolution to save energy (for example, in the mode of Energy saving).

Most often, the problem occurs when connecting game consoles (PlayStation, Xbox) or PC. TV P1 may show 1080p instead 4K, If the console settings are not on mode YUV420 (It's needed 4K@60Hz HDMI 2.0). We will discuss this in detail in the section about gaming devices.

And now – the main thing: on Xiaomi TVs, you can not change the native screen resolution (it is fixed by the factory), but you can configure the scaling and signal format for each HDMI-This is a key difference from monitors, where the resolution changes globally.

Where to find permission settings: step-by-step path through the menu

On Xiaomi TVs with Android TV (Models to 2022 and Google TV (2023-2026 models, the path to resolution settings is different.

For Android. TV (Mi TV 4S, Redmi TV X and others.):

1. Press the Settings (cog) button on the remote.
2. Go to All Settings → Display and sound → Display.
3. Select Screen Resolution (or Screen Mode on some models).
4. If an external device is connected, a tab will appear. HDMI — select the desired port.

For Google. TV (Mi TV Q2, Mi TV A Pro and others.):

1. Open Settings (profile icon in the upper right corner).
2. Go to the System. → Display. → Additional settings.
3. Select Mode. HDMI port-specific.

In both cases, you'll see a list of permissions available. HDMI 1 it could be:

• 3840×2160 (4K) @60Hz
• 3840×2160 (4K) @30Hz
• 1920×1080 (Full HD) @60Hz
• 1280×720 (HD) @50Hz

Check the version. HDMI-cable (needed) 2.0 for 4K@60Hz)

Turn off energy saving mode in the settings of the TV

Remember the current settings (take a picture of the screen)

Reboot the signal source (set-top box, PC)-->

Optimal settings for different signal sources

There is no universal “best” resolution, it depends on the device you connect, and below we’ve compiled recommendations for the most popular scenarios.

For the new generation of gaming consoles (PS5, Xbox Series X is critical not only resolution, but color format. Xiaomi TVs need to turn on:

• 🎮 HDMI 2.1 (if the port supports, for 4K@120Hz.
• 🌈 Color range: Full (0–255).
• 🔄 Automatic refresh rate (for adaptive use) G-Sync/FreeSync).

If you connect a PC, be sure to check the scaling settings in Windows/macOS. For example, with permission 3840×2160 scale 150% It's going to be blurry:

• 🖥️ In Windows: Options → System system → Display. → Scale: 100%.
• 🍎 In macOS: System settings → Monitors → Resolution: By default for the TV.

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If the TV doesn't show 4K When connecting a PC, try manually adding permission through NVIDIA Control Panel (for video cards) NVIDIA) or AMD Radeon Settings: Sometimes drivers don't see the TV's capabilities.

Hidden settings: developer mode and engineering menu

For power users, Xiaomi TVs have hidden options that allow you to fine-tune resolution and color reproduction. For example, in developer mode, you can enable debugging on the device. USB change the parameters HDMI low-level.

How to activate the developer mode:

1. Open the Settings. → On TV.
2. Find the line Build number and click on it 7 times in a row.
3. Return to the main menu and a new item for developers will appear.

In this menu, pay attention to:

• 🔧 Debugging by HDMI — It allows you to control the TV from the PC through ADB.
• 🎨 Color mode: Extended – opens additional profiles (e.g, DCI-P3).
• 🔄 Reset HDMI-Ports – useful if the TV “forgot” settings for the device.

You can dig deeper into the Service Menu, which is the remote control.

Press sequentially: Menu → 1 → 3 → 7 → 9 → Menu

⚠️ Warning: Changing the settings in the engineering menu may cause the TV to crash. EEPROM Panel Adjustment if you are not sure what you are doing.

The engineering menu can:

• 📊 View the actual resolution of the panels (for example, 3840×2160 or 1920×1080).
• 🔍 Check the version. EDID (data on supported regimes HDMI).
• 🔧 Manually ask Pixel Clock for non-standard resolutions.

Problems with resolution: diagnosis and solutions

If the Xiaomi TV doesn’t show the desired resolution or the picture is distorted, use this troubleshooting manual.

Problem 1: The TV doesn't see 4K

• 🔌 Check it out. HDMI-cable 4K@60Hz needs High Speed. HDMI (plug-marked).
• 🖥️ At the source (PC / prefix) manually install 3840×2160.
• ⚙️ Turn on the TV settings. HDMI 2.0 Mode (if available).
• 🔄 Reconnect the cable to another HDMI-Port (only on some models) HDMI 1 supports 4K).

Problem 2: The picture is cut off at the edges

• 📐 In the TV settings, find the Screen Size (or Picture Size) and select Just Scan (1:1).
• 🖥️ On PC, disable scaling in graphics card drivers.
• 🎮 For consoles, turn off Overscan in output settings.

Problem 3: The resolution is reset after switching off

• 🔋 Check if the energy saving mode is included in the TV settings.
• 🔄 Reset the settings. HDMI-Port settings: Settings → HDMI → Reset.
• 📋 Update the TV firmware (instructions in the next section).

Problem 4: Blurred text when connecting a PC

• 🖥️ In Windows, set the scale to 100% and turn off font smoothing (ClearType).
• 📺 On TV, select PC Mode in Settings HDMI (reduces input delay).
• 🔍 Check if scaling is included in the graphics card settings (NVIDIA/AMD).

⚠️ Warning: If the screen turns black after changing the resolution, wait 15 seconds - the TV must automatically return to the previous settings.

Firmware Update: Why It Is Important for Correct Resolution

The manufacturer regularly releases updates for Xiaomi TVs that fix bugs in the work HDMI-ports and adding support for new permissions, such as firmware for Mi TV Q2 75" version 1.6.25 fixes bug with display 1440p PC-only.

How to update firmware:

1. Open Settings → About TV → Update system.
2. Click Check for updates.
3. If a new version is available, confirm the installation.

If the automatic update does not work:

• 📥 Download the firmware for your model from the official Xiaomi website (Support section) → TV).
• 💾 Save the file to the flash drive in format FAT32 (Don't change the file name!).
• 📺 Connect the flash drive to the TV and select Update via USB.

After the update:

• ⚙️ Reset the settings. HDMI-Port settings (Port settings) → HDMI → Reset).
• 🔄 Reboot the TV and the signal source.
• 📋 Check the available permits – new options should appear.

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Updating your firmware is a must if your TV doesn't support the resolution you want out of the box. TV X couldn't work with 1440p, But it was fixed in the firmware of 2023.

Features of settings for gaming TVs Xiaomi

Xiaomi models marked Game (e.g. Mi) TV Q2 65 Game Edition has additional features for gamers:

• 🎮 Regime. ALLM (Auto Low Latency Mode – Automatically reduces the input delay when you start the game.
• 🔄 VRR (Variable Refresh Rate – supports 48-120 Hz for smooth gameplay.
• 🖥️ Support 1440p — Rare for TVs, but useful for PC gamers.

How to set up the game mode:

1. Connect your console or PC to a port marked HDMI 2.1 (usually) HDMI 3 or HDMI 4).
2. In the TV settings, select Game Mode (Settings) → Display. → Image mode → Game).
3. Turn it on. ALLM and VRR (If supported by your console).
4. For PS5 or Xbox Series X in the console settings select Additional → Permission: 4K → Frequency: 120 Hz.

Important nuances:

• 🎯 120 Hz may be required HDMI 2.1 cable (even if the port supports the standard).
• 🔌 In some models VRR It only works when Dolby Vision is enabled.
• ⚡ When activated ALLM Some image processing functions are disabled (e.g. Motion Smoothing).

To check the actual input delay, you can use the test on the TestUFO website (plug in your PC and open the page in your TV browser).

FAQ: Frequent questions about setting up permission