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Not Reproducible

Not Reproducible in 2018.1.X



Found in


Issue ID




[iOS] Spinning wheel appears and application crashes on a device if external monitor is connected via adapter



To reproduce:
1. Open project attached by the user
2. Make sure "starter" scene is included in the build settings and build it for iOS
3. Open built project in XCode 9 and build it into iOS device
4. Disconnect device from USB
5. Use lighting to HDMI adapter and connect an external screen to the device
6. Launch installed app on a device

Expected result: Application should launch successfully, different image should be rendered on different monitors
Actual: Spinning wheel appears, application crashes

Reproduced with: 5.5.4p4, 5.6.3p3, 2017.1.1p1, 2017.2.0b11, 2017.3.0a7
Device: iPad Air 1 A1474 iOS 11

Not reproducible with: 5.5.0f3
Not reproducible on iPad Pro 10.5" A10x iOS 11

  1. Resolution Note:

    No longer reproduces on latest iOS version

Comments (5)

  1. Luanlulu

    Jan 11, 2018 05:34


    Getting similar issue. Tried on Unity 5.6.3f1 and 2017.3.0f3 on iOS 11.2

    App crashes when changes to new scene.

  2. makimono79

    Dec 21, 2017 13:27


    in iOS 11.2.5 with Unity 2017.3.0f3 the crash still happens on Metal, but external Display works using OpenGL ES 2 or 3 - only performance seems VERY slow oven on iPad Pros. And the crash issue described by SWIGUY15692 still happens.

  3. Kurt-Dekker

    Dec 19, 2017 22:21

    Have you tried building it with metal support disabled, just good old GLES?

  4. swiguy15692

    Dec 11, 2017 18:36

    Getting similar issue. Unity 2017.2.0f3 and iOS 11.2 on an iPad Pro 10.5"

    Unfortunately I just picked up the adapter after I made the switch to 11.2 and didn't test on 11.1

    App crashes immediately upon attempting to launch while HDMI adapter connected, however if I launch the app without the adapter first, I can plug it in and everything works as it should.

  5. makimono79

    Nov 15, 2017 08:42

    With iOS 11.2, Unity crashes as soon as an external display is connected. Happens also on iPad Pro (tested with 12.9" ML0FD/A)

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