Camera2 background repeating capture session errors when screen is toggled from off to on

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I am using a background-cam example repo that runs a camera2 API repeating capture session in a background service. The app works as expected continuing to capture session when you close the app and shut the phone screen off, but when I turn my screen back on I receive the following error(s):

Session 0: Exception while stopping repeating: 
 android.hardware.camera2.CameraAccessException: CAMERA_ERROR (3): cancelRequest:534: Camera 1: Error clearing streaming request: Function not implemented (-38)
    at android.hardware.camera2.CameraManager.throwAsPublicException(CameraManager.java:1118)
    at android.hardware.camera2.impl.ICameraDeviceUserWrapper.cancelRequest(ICameraDeviceUserWrapper.java:99)
    at android.hardware.camera2.impl.CameraDeviceImpl.stopRepeating(CameraDeviceImpl.java:1284)
    at android.hardware.camera2.impl.CameraCaptureSessionImpl.close(CameraCaptureSessionImpl.java:592)
    at android.hardware.camera2.impl.CameraCaptureSessionImpl$2.onDisconnected(CameraCaptureSessionImpl.java:803)
    at android.hardware.camera2.impl.CameraDeviceImpl$7.run(CameraDeviceImpl.java:251)
    at android.os.Handler.handleCallback(Handler.java:938)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:233)
    at android.app.ActivityThread.main(ActivityThread.java:8068)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:631)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:978)
 Caused by: android.os.ServiceSpecificException: cancelRequest:534: Camera 1: Error clearing streaming request: Function not implemented (-38) (code 10)
    at android.os.Parcel.createExceptionOrNull(Parcel.java:2387)
    at android.os.Parcel.createException(Parcel.java:2357)
    at android.os.Parcel.readException(Parcel.java:2340)
    at android.os.Parcel.readException(Parcel.java:2282)
    at android.hardware.camera2.ICameraDeviceUser$Stub$Proxy.cancelRequest(ICameraDeviceUser.java:732)
    at android.hardware.camera2.impl.ICameraDeviceUserWrapper.cancelRequest(ICameraDeviceUserWrapper.java:97)
    at android.hardware.camera2.impl.CameraDeviceImpl.stopRepeating(CameraDeviceImpl.java:1284) 
    at android.hardware.camera2.impl.CameraCaptureSessionImpl.close(CameraCaptureSessionImpl.java:592) 
    at android.hardware.camera2.impl.CameraCaptureSessionImpl$2.onDisconnected(CameraCaptureSessionImpl.java:803) 
    at android.hardware.camera2.impl.CameraDeviceImpl$7.run(CameraDeviceImpl.java:251) 
    at android.os.Handler.handleCallback(Handler.java:938) 
    at android.os.Handler.dispatchMessage(Handler.java:99) 
    at android.os.Looper.loop(Looper.java:233) 
    at android.app.ActivityThread.main(ActivityThread.java:8068) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:631) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:978)

Something, possibly at the OS level, is triggering a cancelRequest. I would like to prevent this. I tried using a wake lock in onCreate() of the CamService service and adding the WAKE_LOCK permission to my AndroidManifest.xml that has not made a difference.

AndroidManifest.xml:

<uses-permission android:name="android.permission.WAKE_LOCK" />

CamService.kt:

  override fun onCreate() {
    super.onCreate()

    val wakeLock: PowerManager.WakeLock =
        (getSystemService(Context.POWER_SERVICE) as PowerManager).run {
            newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "CamService::MyWakelockTag").apply {
                acquire()
            }
        }
    ...

I would like my capture session to continue when the screen is turned back on if that is possible.

I have logged all the lifecycle events for MainActivity and CamService and none of them are triggered directly before/after this error.

I have also removed Battery Optimization for this app on the phone.

Device: OnePlus 6 (A6003)

Android Version: 11

SDK API: 30

OxygenOS Version: 11.2.2



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