How to turn on full screen mode in the game on the Xiaomi phone

Modern Xiaomi smartphones are equipped with displays with an aspect ratio of 19.5:9 or even 20:9, which creates ideal conditions for immersion in the gameplay. However, not all game developers have time to adapt their projects to such elongated screens, which can appear on the sides of black bars, and the interface is displayed incorrectly. Device owners often wonder how to get the application to occupy the entire available area of the matrix without losing important controls.

MIUI and the new HyperOS have flexible content management tools that force the image to stretch, hide the front camera in the screen cutouts, and block random touches, and the right configuration can turn even an old game into a comfortable big-screen entertainment.

In this guide, we will take a detailed look at all the available full-screen activation methods, where to look for hidden settings for specific applications, how the Advanced Mode function works, and why some games require a customized approach to scaling the interface.

Basic screen settings in MIUI and HyperOS

The first step to a full immersion is to check the general display parameters, which Xiaomi smartphones are focused on a single settings center, which can be called differently depending on the firmware version, usually through the main settings menu of the device.

You go to Settings, then select Screen, and that's where the key switches are for how content fills the matrix space, and in some versions of the shell, that partition can be hidden inside the "Advanced" subsection, or called "Fullscreen mode."

It's important to understand that global settings apply rules to all applications at once, and if you change the zoom setting here, it can affect not only games, but also social networks or video players, so before making changes, it's worth assessing how critical standard display is to you in other programs.

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Before changing the global screen settings, take a screenshot of the current settings so that in case of inconvenience, everything can be quickly returned as it was.

It is worth noting that in new versions of HyperOS, the algorithms for automatically determining the appropriate mode work more accurately. The system itself analyzes the signature of the running application and suggests the best option for filling the screen, but manual control is still a more reliable way.

Set up full screen mode for specific applications

The most flexible way to manage the display is to customize each game, and unlike the global settings, you can set unique rules for each game. APK-This allows you to avoid distortion in some applications and get a full screen in others.

To access these settings, you need to find a settings menu item that is called “Fullscreen Mode”, “Fullscreen Apps” or “Fullscreen Applications Management” in different versions of MIUI. Inside you will see a list of all installed programs.

For each game, there are three options for the behavior of the system:

• 📱 Default: The system decides how to display content based on the compatibility database.
• 🔲 Full screen: The app stretches across the entire display area, ignoring cutouts and proportions.
• ⚖️ Original size: The app appears in native resolution, often with black margins around the edges.

It is recommended to choose Full Screen mode only for games that visually look normal when stretched. If the interface floats or buttons go beyond the visible area, it is better to return the setting to the default value.

Changes take effect instantly, you don't need to restart the device, you just fold the game and start it again to see the result, and if you don't find the game you want on the list, try updating the settings page or restarting the setup process.

Control of screen cutouts and front camera

Many Xiaomi and Redmi phones have a front-facing camera built directly into the display, and in normal operation, a black area is created around the camera to avoid overlapping the interface elements, but in games, this black bar can take up useful space or just annoy.

Hiding the Notch allows you to programmatically mask the camera by turning the top status bar completely black or by stretching the image underneath it. You can find this option by Settings → Screen → Screencut (or Hiding the Notch).

• 🚫 Do not hide: the cutout remains visible, a semicircular or rectangular black zone forms around the camera.
• ⬛ Hide the cutout: The area around the camera is painted black, creating the illusion of a narrower screen without a “hole».
• 🎨 Automatic: the system itself determines when to hide the cutout, based on the running application.

⚠️ Note: When selecting the Hide Notice mode in some games, the top of the interface (such as a card or bullet counter) may be covered with a black bar. Always check if the darkened area does not overlap important game elements.

For maximum immersion, many users choose full concealment, which makes the top bezel monolithic. However, in first-person shooters or strategies where every pixel of the view is important, it is better to leave the notch visible or use a mode where the camera does not overlap the content.

Use of the Game Turbo accelerator

The Game Turbo tool, which is not just an overlay for calling menus, but also a powerful resource and display management tool, deserves special attention. Adding a game to the accelerator list often automatically applies optimal screen settings.

To activate the necessary functions, open the Security app, find the Game Turbo section and add the desired game to it through the + button. After starting the game with a swipe from the corner of the screen, call the accelerator sidebar.

The accelerator menu has the following useful features for the screen:

• 🚫 Brightness Blocking: Prevents brightness changes during play, which is important for a stable picture.
• 📵 Disable notifications: Hide pop-up messages that may violate full-screen mode.
• 🎮 Call response: allows you to answer a call without interrupting the game (picture remains on the screen).

Game Turbo also often features a touch sensitivity feature that doesn’t affect image size, but makes full-screen control more responsive, especially in dynamic shooters where split-second delays can be worth winning.

Solving scaling problems in older games

Older apps designed for 16:9 screens often misbehave on modern displays, which can stretch disproportionately, making characters too wide, or leaving huge black fields on the sides, narrowing the game area.

In the developer settings or special MIUI menus, you can sometimes find the option “Scale screen” or “Additional resolution”. However, for games, the more effective way is to use the “Forced Full Screen Display” feature, if it is available in your version of the firmware.

If the standard methods of solving the problem fail, you can try the following algorithm:

1. Delete the game and clear the cache through the app settings.
2. In the screen settings, select the “Subject size” mode for this application.
3. Start the game, then go out and switch the mode to Full Screen.
4. Reboot the device and check the result.

⚠️ Warning: Forced stretching of old games can lead to blurring of text and UI-Visual quality may be affected because the pixels will be interpolated programmatically.

In some cases, installing permission patches or using third-party launchers helps, but this requires Root rights, which is not recommended for ordinary users due to the risk of loss of warranty and unstable system operation.

Comparison of display modes and performance

The choice of display mode affects not only the image, but also the load on the GPU. Image stretching or rendering in higher resolution require additional computing resources. Below is a table comparing the main modes.

As you can see from the table, Default mode is the most balanced, it provides better performance and stability, and Full Screen mode should only be turned on if you are critically dissatisfied with black stripes and are willing to put up with possible image artifacts.

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Enabling full-screen mode rarely affects FPS in heavy gaming, but can increase the device's heat due to the operation of more pixels.

Also, it is worth considering that in full screen mode, the risk of accidental touching with the edges of the palm is higher, since the active area of the display fits close to the frame of the case. In games with virtual joysticks, this can lead to undesirable actions of the character.

Frequently Asked Questions (FAQ)