To create a virtual display using ADB (Android Debug Bridge), you can use the adb shell command to interact with the device’s display settings. Here’s a step-by-step guide:

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Prerequisites

• ADB installed on your computer.
• USB Debugging enabled on your Android device.
• A rooted device or a device with settings put global hidden_api_policy 1 (for some newer devices).

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Step-by-Step Commands

1. Connect to Your Device

bash
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adb devices

(Ensure your device is listed.)

2. Create a Virtual Display

Use the following command to create a virtual display:

bash
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adb shell am display create 2:1080x1920@60

• 2 = Display ID (can be any unique number).
• 1080x1920 = Resolution (width x height).
• 60 = Refresh rate (Hz).

3. Start the Virtual Display

bash
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adb shell am start -n com.android.settings/.DisplaySettings

(This opens the display settings, where you can select the virtual display.)

4. Mirror the Virtual Display (Optional)

If you want to mirror the virtual display to your computer:

bash
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adb shell screencap -p /sdcard/screen.png
adb pull /sdcard/screen.png

(You can also use scrcpy for real-time mirroring.)

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Notes

• Root Access Required: Some devices may require root access to create virtual displays.
• Alternative Tools: If ADB doesn’t work, consider using scrcpy or OBS Studio to create virtual displays.
• Device Compatibility: Not all Android devices support virtual displays via ADB.

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