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Question by fanple · Nov 28, 2016 at 09:32 AM · display

Why the Unity app monitor the status change of the second display?

We’ve found an Unity issue. Below is the reproduce procedure.

Reproduce procedure 1: 1. On Android 6.0, connect the android device to a second display, e.g. the wireless display (Airplay, DLNA, Miracast), 2. open an Unity app, 3. Set the system get into sleep mode (e.g. by pressing power key), 4. Power off the second display. 5. Power up the Android device which running the Unity app. 6. The Unity app will be black screen or stuck.

Reproduce procedure 2: 1. On Android 6.0, open an Unity app, 2. Set the Unity app getting into the system background, 3. Connect the android device to a second display, e.g. the wireless display (Airplay, DLNA, Miracast), 4. Call back the Unity app to the foreground. 5. The Unity app will be black screen or stuck.

This issue is found from Unity5.3.5 and the newer version. It cannot be reproduced on the version before Unity5.3.5.

Why the Unity app monitor the status change of the second display? What if the system block the status change notification of the second display to the Unity app?

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