Download

DK2 screen freezes shortly after starting playing on Unreal 4.8.x

Whenever I try to test one of my projects (using a custom player controller with a custom camera manger(that has the follow HMD orientation flag enabled)) in VR the display tend to freeze. I do not get an error message.
Editor log:


[2015.07.19-01.10.13:950]  0]Log file open, 07/19/15 04:10:13
[2015.07.19-01.10.13:950]  0]LogInit:Display: Running engine for game: Bikes
[2015.07.19-01.10.13:950]  0]LogInit:Display: RandInit(1495407669) SRandInit(1495407670).
[2015.07.19-01.10.13:950]  0]LogTaskGraph: Started task graph with 4 named threads and 7 total threads.
[2015.07.19-01.10.13:950]  0]LogStats: Stats thread started
[2015.07.19-01.10.13:950]  0]LogInit: Version: 4.8.2-2614606+++depot+UE4-Releases+4.8
[2015.07.19-01.10.13:950]  0]LogInit: API Version: 2579680
[2015.07.19-01.10.13:950]  0]LogInit: Compiled (64-bit): Jul  8 2015 23:43:41
[2015.07.19-01.10.13:950]  0]LogInit: Compiled with Visual C++: 18.00.21005.01
[2015.07.19-01.10.13:950]  0]LogInit: Build Configuration: Development
[2015.07.19-01.10.13:950]  0]LogInit: Branch Name: ++depot+UE4-Releases+4.8
[2015.07.19-01.10.13:950]  0]LogInit: Command line:  
[2015.07.19-01.10.13:950]  0]LogInit: Base directory: C:/Program Files/Epic Games/4.8/Engine/Binaries/Win64/
[2015.07.19-01.10.13:950]  0]LogInit: Rocket: 1
[2015.07.19-01.10.13:959]  0]LogInit: Using libcurl 7.41.0
[2015.07.19-01.10.13:959]  0]LogInit:  - built for x86_64-pc-win32
[2015.07.19-01.10.13:959]  0]LogInit:  - supports SSL with WinSSL
[2015.07.19-01.10.13:959]  0]LogInit:  - other features:
[2015.07.19-01.10.13:959]  0]LogInit:      CURL_VERSION_SSL
[2015.07.19-01.10.13:959]  0]LogInit:      CURL_VERSION_IPV6
[2015.07.19-01.10.13:959]  0]LogInit:      CURL_VERSION_ASYNCHDNS
[2015.07.19-01.10.13:959]  0]LogInit:      CURL_VERSION_LARGEFILE
[2015.07.19-01.10.13:959]  0]LogInit:      CURL_VERSION_IDN
[2015.07.19-01.10.13:959]  0]LogInit:  CurlRequestOptions (configurable via config and command line):
[2015.07.19-01.10.13:959]  0]LogInit:  - bVerifyPeer = true  - Libcurl will verify peer certificate
[2015.07.19-01.10.13:959]  0]LogInit:  - bUseHttpProxy = false  - Libcurl will NOT use HTTP proxy
[2015.07.19-01.10.13:959]  0]LogInit:  - bDontReuseConnections = false  - Libcurl will reuse connections
[2015.07.19-01.10.13:959]  0]LogInit:  - CertBundlePath = nullptr  - Libcurl will use whatever was configured at build time.
[2015.07.19-01.10.13:967]  0]LogOnline:Warning: No default platform service specified for OnlineSubsystem
[2015.07.19-01.10.13:976]  0]LogInit: Presizing for 0 objects not considered by GC, pre-allocating 0 bytes.
[2015.07.19-01.10.13:981]  0]LogInit: Object subsystem initialized
[2015.07.19-01.10.13:982]  0]LogConsoleResponse:Warning: Skipping Unknown console variable: 'TranslucentSortAxis = (X=0.000000,Y=-1.000000,Z=0.000000)'
[2015.07.19-01.10.13:982]  0]LogConsoleResponse:Warning:   Found in ini file 'C:/Users/Ats/Documents/Unreal Projects/Bikes/Saved/Config/Windows/Engine.ini', in section '[/Script/Engine.RendererSettings]'
[2015.07.19-01.10.13:982]  0]LogConsoleResponse:Warning: Skipping Unknown console variable: 'UIScaleRule = ShortestSide'
[2015.07.19-01.10.13:982]  0]LogConsoleResponse:Warning:   Found in ini file 'C:/Users/Ats/Documents/Unreal Projects/Bikes/Saved/Config/Windows/Engine.ini', in section '[/Script/Engine.RendererSettings]'
[2015.07.19-01.10.13:982]  0]LogConsoleResponse:Warning: Skipping Unknown console variable: 'UIScaleCurve = (EditorCurveData=(Keys=),ExternalCurve=None)'
[2015.07.19-01.10.13:982]  0]LogConsoleResponse:Warning:   Found in ini file 'C:/Users/Ats/Documents/Unreal Projects/Bikes/Saved/Config/Windows/Engine.ini', in section '[/Script/Engine.RendererSettings]'
[2015.07.19-01.10.13:982]  0]LogInit: Selected Device Profile: [Windows]
[2015.07.19-01.10.13:982]  0]LogInit: Applying CVar settings loaded from the selected device profile: [Windows]
[2015.07.19-01.10.13:988]  0]LogInit: Computer: ATS-PC-MK2
[2015.07.19-01.10.13:988]  0]LogInit: User: Ats
[2015.07.19-01.10.13:988]  0]LogInit: CPU Page size=4096, Cores=4
[2015.07.19-01.10.13:988]  0]LogInit: High frequency timer resolution =3.410080 MHz
[2015.07.19-01.10.13:988]  0]LogMemory: Memory total: Physical=7.9GB (8GB approx)
[2015.07.19-01.10.13:988]  0]LogMemory: Platform Memory Stats for Windows
[2015.07.19-01.10.13:988]  0]LogMemory: Process Physical Memory: 48.66 MB used, 48.66 MB peak
[2015.07.19-01.10.13:988]  0]LogMemory: Process Virtual Memory: 22.20 MB used, 22.20 MB peak
[2015.07.19-01.10.13:988]  0]LogMemory: Physical Memory: 4396.97 MB used, 8077.59 MB total
[2015.07.19-01.10.13:988]  0]LogMemory: Virtual Memory: 295.13 MB used, 134217728.00 MB total
[2015.07.19-01.10.14:015]  0]LogTextLocalizationManager: The requested culture ('et_EE') has no localization data; falling back to 'en' for localization and internationalization data.
[2015.07.19-01.10.14:185]  0]LogTextLocalizationManager:Warning: Loaded localization resources contain conflicting entries for (Namespace:ContentBrowser, Key:ImportAssetToolTip):
Localization Resource: (C:/Program Files/Epic Games/4.8/Engine/Content/Localization/Editor/en/Editor.locres) Source String Hash: (-630476809) Localized String: (Import to {0}...)
Localization Resource: (C:/Program Files/Epic Games/4.8/Engine/Content/Localization/Editor/en/Editor.locres) Source String Hash: (1271782899) Localized String: (Imports an asset from file to this folder.)
[2015.07.19-01.10.14:516]  0]LogD3D11RHI: Found D3D11 adapter 0: NVIDIA GeForce GTX 970 (Feature Level 11_0)
[2015.07.19-01.10.14:516]  0]LogD3D11RHI: Adapter has 3992MB of dedicated video memory, 0MB of dedicated system memory, and 4038MB of shared system memory, 2 output[s]
[2015.07.19-01.10.14:521]  0]LogD3D11RHI: Found D3D11 adapter 1: Intel(R) HD Graphics 4600 (Feature Level 11_0)
[2015.07.19-01.10.14:521]  0]LogD3D11RHI: Adapter has 32MB of dedicated video memory, 0MB of dedicated system memory, and 1760MB of shared system memory, 0 output[s]
[2015.07.19-01.10.14:522]  0]LogD3D11RHI: Found D3D11 adapter 2: Microsoft Basic Render Driver (Feature Level 11_0)
[2015.07.19-01.10.14:522]  0]LogD3D11RHI: Adapter has 0MB of dedicated video memory, 0MB of dedicated system memory, and 256MB of shared system memory, 0 output[s]
[2015.07.19-01.10.14:522]  0]LogD3D11RHI: Chosen D3D11 Adapter Id = 0
[2015.07.19-01.10.14:524]  0]LogD3D11RHI: InitD3DDevice
[2015.07.19-01.10.14:524]  0]LogD3D11RHI: !Direct3DDevice
[2015.07.19-01.10.14:524]  0]LogRHI: Texture pool is 1361 MB (70% of 1945 MB)
[2015.07.19-01.10.14:531]  0]LogD3D11RHI: Async texture creation enabled
[2015.07.19-01.10.14:545]  0]LogShaderCompilers:Display: Using Local Shader Compiler.
[2015.07.19-01.10.15:163]  0]LogTemp:Display: Loaded TP DesktopTargetPlatform
[2015.07.19-01.10.15:172]  0]LogTemp:Display: Loaded TP WindowsClientTargetPlatform
[2015.07.19-01.10.15:185]  0]LogTemp:Display: Loaded TP WindowsNoEditorTargetPlatform
[2015.07.19-01.10.15:195]  0]LogTemp:Display: Loaded TP WindowsServerTargetPlatform
[2015.07.19-01.10.15:205]  0]LogTemp:Display: Loaded TP WindowsTargetPlatform
[2015.07.19-01.10.15:214]  0]LogTemp:Display: Loaded TP AndroidTargetPlatform
[2015.07.19-01.10.15:222]  0]LogTemp:Display: Loaded TP Android_ASTCTargetPlatform
[2015.07.19-01.10.15:230]  0]LogTemp:Display: Loaded TP Android_ATCTargetPlatform
[2015.07.19-01.10.15:238]  0]LogTemp:Display: Loaded TP Android_DXTTargetPlatform
[2015.07.19-01.10.15:247]  0]LogTemp:Display: Loaded TP Android_ETC1TargetPlatform
[2015.07.19-01.10.15:255]  0]LogTemp:Display: Loaded TP Android_ETC2TargetPlatform
[2015.07.19-01.10.15:264]  0]LogTemp:Display: Loaded TP Android_PVRTCTargetPlatform
[2015.07.19-01.10.15:303]  0]LogTemp:Display: Loaded TP IOSTargetPlatform
[2015.07.19-01.10.15:311]  0]LogTemp:Display: Loaded TP LinuxNoEditorTargetPlatform
[2015.07.19-01.10.15:319]  0]LogTemp:Display: Loaded TP LinuxServerTargetPlatform
[2015.07.19-01.10.15:328]  0]LogTemp:Display: Loaded TP LinuxTargetPlatform
[2015.07.19-01.10.15:328]  0]LogTargetPlatformManager:Display: Building Assets For Windows
[2015.07.19-01.10.15:465]  0]LogDerivedDataCache:Display: Max Cache Size: 512 MB
[2015.07.19-01.10.15:509]  0]LogDerivedDataCache: Loaded boot cache 0.04s 53MB C:/Users/Ats/AppData/Local/UnrealEngine/4.8/DerivedDataCache/Boot.ddc.
[2015.07.19-01.10.15:509]  0]LogDerivedDataCache:Display: Loaded Boot cache: C:/Users/Ats/AppData/Local/UnrealEngine/4.8/DerivedDataCache/Boot.ddc
[2015.07.19-01.10.15:509]  0]LogDerivedDataCache: FDerivedDataBackendGraph:  Pak pak cache file ../../../../../../Users/Ats/Documents/Unreal Projects/Bikes/DerivedDataCache/DDC.ddp not found, will not use a pak cache.
[2015.07.19-01.10.15:509]  0]LogDerivedDataCache: Unable to find inner node Pak for hierarchical cache Hierarchy.
[2015.07.19-01.10.15:509]  0]LogDerivedDataCache: FDerivedDataBackendGraph:  CompressedPak pak cache file ../../../../../../Users/Ats/Documents/Unreal Projects/Bikes/DerivedDataCache/Compressed.ddp not found, will not use a pak cache.
[2015.07.19-01.10.15:509]  0]LogDerivedDataCache: Unable to find inner node CompressedPak for hierarchical cache Hierarchy.
[2015.07.19-01.10.15:621]  0]LogDerivedDataCache:Display: Pak cache opened for reading ../../../Engine/DerivedDataCache/Compressed.ddp.
[2015.07.19-01.10.15:633]  0]LogDerivedDataCache: Using Local data cache path C:/Users/Ats/AppData/Local/UnrealEngine/Common/DerivedDataCache: Writable
[2015.07.19-01.10.15:776]  0]LogInit: Selected Device Profile: [Windows]
[2015.07.19-01.10.15:835]  0]ImportText (ComponentSweepMultiTests): Missing closing parenthesis: (RootShapeAsset="/Engine/BasicShapes/Cube.Cube",ShapeType="TriggerCapsule",HitResult=(Time=0.50,Location=(X=-100.000015,Y=0.0,Z=100.000015),ImpactPoint=(X=-50.0,Y=0.0,Z=50.0),Normal=(X=-1.0,Y=-0.0,Z=0.0),ImpactNormal=(X=0.0,Y=0.0,Z=1.0),TraceStart=(X=-200.0,Y=0.0,Z=200.0),TraceEnd=(X=0.0,Y=0.0,Z=0.0))
[2015.07.19-01.10.15:835]  0]ImportText (LineTraceSingleByChannelTests): Missing closing parenthesis: (RootShapeAsset="/Engine/BasicShapes/Cube.Cube",HitResult=(Time=0.50,Location=(X=-100.000015,Y=0.0,Z=100.000015),ImpactPoint=(X=-50.0,Y=0.0,Z=50.0),Normal=(X=-1.0,Y=-0.0,Z=0.0),ImpactNormal=(X=0.0,Y=0.0,Z=1.0),TraceStart=(X=-200.0,Y=0.0,Z=200.0),TraceEnd=(X=0.0,Y=0.0,Z=0.0))
[2015.07.19-01.10.15:855]  0]LogMeshUtilities: No automatic mesh reduction module available
[2015.07.19-01.10.15:855]  0]LogMeshUtilities: No automatic mesh merging module available
[2015.07.19-01.10.16:071]  0]LogInit: WinSock: version 1.1 (2.2), MaxSocks=32767, MaxUdp=65467
[2015.07.19-01.10.16:719]  0]UdpMessaging: Initializing bridge on interface 0.0.0.0:0 to multicast group 230.0.0.1:6666.
[2015.07.19-01.10.16:985]  0]SourceControl: Info Source control is disabled
[2015.07.19-01.10.16:991]  0]SourceControl: Info Source control is disabled
[2015.07.19-01.10.16:998]  0]SourceControl: Info Source control is disabled
[2015.07.19-01.10.17:004]  0]SourceControl: Info Source control is disabled
[2015.07.19-01.10.17:150]  0]LogObj: 26273 objects as part of root set at end of initial load.
[2015.07.19-01.10.17:150]  0]LogUObjectAllocator: 5409256 out of 0 bytes used by permanent object pool.
[2015.07.19-01.10.17:203]  0]LogEngine: Initializing Engine...
[2015.07.19-01.10.17:204]  0]OCULUS: Info: [CAPI] LibOVR module is located at C:\Windows\SYSTEM32\LibOVRRT64_0_6.dll

[2015.07.19-01.10.17:305]  0]LogHMD:Warning: HMD Oculus Rift DK2, res = 1920 x 1080
[2015.07.19-01.10.17:306]  0]LogHMD: Oculus plugin initialized. Version: 4.8.2-2614606+++depot+UE4-Releases+4.8, LibOVR: 0.6.0.1, built Jul  8 2015, 23:44:35
[2015.07.19-01.10.17:437]  0]LogAIModule: Creating AISystem for world NewWorld
[2015.07.19-01.10.17:440]  0]LogInit: XAudio2 using 'Speakers (Realtek High Definition Audio)' : 2 channels at 48 kHz using 32 bits per sample (channel mask 0x3)
[2015.07.19-01.10.17:446]  0]LogInit: FAudioDevice initialized.
[2015.07.19-01.10.17:466]  0]LogDerivedDataCache: Saved boot cache 0.02s 53MB C:/Users/Ats/AppData/Local/UnrealEngine/4.8/DerivedDataCache/Boot.ddc.
[2015.07.19-01.10.17:471]  0]LogInit: Texture streaming: Disabled
[2015.07.19-01.10.17:487]  0]LogAnalytics: Creating configured Analytics provider AnalyticsET
[2015.07.19-01.10.17:487]  0]LogAnalytics: [UEEditor.Rocket.Release] APIServer = http://et2.epicgames.com/ET2/. AppVersion = 4.8.2-2614606+++depot+UE4-Releases+4.8
[2015.07.19-01.10.17:487]  0]LogAnalytics: [UEEditor.Rocket.Release] SetUserId dafbcfff4397ba36a873f3a9938e4bc0|9bb69672f02f4b5f8f241498abac87ad|348ca7d9-d2bd-4386-bd60-04ec4b1ce1aa
[2015.07.19-01.10.17:487]  0]LogAnalytics: [UEEditor.Rocket.Release] AnalyticsET::StartSession
[2015.07.19-01.10.17:505]  0]LogInit: Transaction tracking system initialized
[2015.07.19-01.10.17:586]  0]BlueprintLog: New page: Editor Load
[2015.07.19-01.10.17:612]  0]LogAssetRegistry: FAssetRegistry took 0.0107 seconds to start up
[2015.07.19-01.10.17:612]  0]LogDirectoryWatcher:Warning: Failed to begin reading directory changes for ../../../Engine/Plugins/Experimental/CharacterAI/Content/. Error: 0
[2015.07.19-01.10.18:050]  0]LogLinker:Warning: Can't find file '/Game/ThirdPersonBP/ThirdPersonOverview'
[2015.07.19-01.10.18:050]  0]LogLinker:Warning: Can't find file '/Game/ThirdPersonBP/ThirdPersonOverview'
[2015.07.19-01.10.18:050]  0]LogLinker:Warning: Can't find file '/Game/ThirdPersonBP/ThirdPersonOverview'
[2015.07.19-01.10.18:050]  0]LogUObjectGlobals:Warning: Failed to find object 'Class /Game/ThirdPersonBP/ThirdPersonOverview.ThirdPersonOverview_C'
[2015.07.19-01.10.18:088]  0]LogConsoleManager:Warning: Console variable 'r.VSync' wasn't set ('GameSetting' has a lower priority than 'SystemSettingsIni')
[2015.07.19-01.10.18:088]  0]LogConsoleResponse:Display: 
[2015.07.19-01.10.18:152]  0]LogCook:Display: Done creating registry. It took  0.00s.
[2015.07.19-01.10.18:264]  0]SourceControl: Info Source control is disabled
[2015.07.19-01.10.18:264]  0]Cmd: MAP LOAD FILE="../../../../../../Users/Ats/Documents/Unreal Projects/Bikes/Content/BasicTest.umap" TEMPLATE=0 SHOWPROGRESS=1 FEATURELEVEL=3
[2015.07.19-01.10.18:265]  0]LightingResults: New page: Lighting Build
[2015.07.19-01.10.18:279]  0]MapCheck: New page: Map Check
[2015.07.19-01.10.18:279]  0]LightingResults: New page: Lighting Build
[2015.07.19-01.10.18:285]  0]LogParticles: Destroying 0 GPU particle simulations for FXSystem 0x00000089783D0F40
[2015.07.19-01.10.18:543]  0]LogAIModule: Creating AISystem for world BasicTest
[2015.07.19-01.10.18:547]  0]LogEditorServer: Finished looking for orphan Actors (0.000 secs)
[2015.07.19-01.10.18:548]  0]Cmd: MAP CHECKDEP NOCLEARLOG
[2015.07.19-01.10.18:571]  0]MapCheck: Info Map check complete: 0 Error(s), 0 Warning(s), took 23.083ms to complete.
[2015.07.19-01.10.18:571]  0]LogFileHelpers: Loading map 'BasicTest' took 0.306
[2015.07.19-01.10.18:667]  0]LogCollectionManager: Loaded 0 collections in 0.001378 seconds
[2015.07.19-01.10.18:671]  0]LogContentBrowser: Native class hierarchy populated in 0.0045 seconds. Added 1792 classes and 301 folders.
[2015.07.19-01.10.18:706]  0]LogContentBrowser: Native class hierarchy updated for 'WidgetCarousel' in 0.0002 seconds. Added 0 classes and 0 folders.
[2015.07.19-01.10.18:723]  0]LogContentBrowser: Native class hierarchy updated for 'AddContentDialog' in 0.0002 seconds. Added 0 classes and 0 folders.
[2015.07.19-01.10.18:732]  0]LogContentBrowser: Native class hierarchy updated for 'SceneOutliner' in 0.0003 seconds. Added 1 classes and 2 folders.
[2015.07.19-01.10.18:769]  0]LogCrashTracker: Crashtracker disabled due to settings.
[2015.07.19-01.10.18:770]  0]LogD3D11RHI: InitD3DDevice
[2015.07.19-01.10.18:771]  0]LogUObjectGlobals:Warning: Failed to find object 'Class None.'
[2015.07.19-01.10.18:795]  0]LogLoad: Full Startup: 5.79 seconds (BP compile: 0.11 seconds)
[2015.07.19-01.10.18:803]  0]LogWindowsTextInputMethodSystem:Display: IME system now deactivated.
[2015.07.19-01.10.18:840]  0]LogContentStreaming: Texture pool size is 0.000000MB
[2015.07.19-01.10.18:854]  0]LogContentStreaming: Texture pool size now 1000 MB
[2015.07.19-01.10.18:945]  0]LogRenderer: Reallocating scene render targets to support 1688x832 (Frame:2).
[2015.07.19-01.10.19:113]  4]LogAssetRegistry: Asset discovery search completed in 1.5124 seconds
[2015.07.19-01.10.23:248]

The game itself continues functioning: although I can not see anything change on screen I can interact with it: open the console and disable stereo rendering and the game works just fine after that but reenabling it crashes the editor/game. And that even after restarting the editor.
Maybe it has something to do with the tracking, but idk…

And If I want to run the game again in VR I have to stop and restart the Oculus Runtime (V.0.6.0.1). Because if I don’t restart the runtime I get the following hard crash of the editor:


Unknown exception - code 00000001 (first/second chance not available)

"Assertion failed: ViewFamily.RenderTarget->GetRenderTargetTexture() [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Plugins\Runtime\OculusRift\Source\OculusRift\Private

UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:355]
UE4Editor_OculusRift!OculusRift::FViewExtension::PreRenderViewFamily_RenderThread()
UE4Editor_Renderer!RenderViewFamily_RenderThread() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\renderer\private\scenerendering.cpp:1328]
UE4Editor_Renderer!TGraphTask<`FRendererModule::BeginRenderingViewFamily'::`17'::EURCMacro_FDrawSceneCommand>::ExecuteTask() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\public\async	askgraphinterfaces.h:753]
UE4Editor_Core!FTaskThread::ProcessTasks() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\async	askgraph.cpp:430]
UE4Editor_Core!FTaskThread::ProcessTasksUntilQuit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\async	askgraph.cpp:273]
UE4Editor_RenderCore!RenderingThreadMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\rendercore\private\renderingthread.cpp:284]
UE4Editor_RenderCore!FRenderingThread::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\rendercore\private\renderingthread.cpp:385]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:73]

Which graphics card, which driver version?

Nvidia GTX970, driver version 353.30

Downgrade driver to 350.12 then it should work (see Oculus release notes)

It indeed looks like that downgrading the drivers did the trick. Thank you so very much :slight_smile:
Will try to be more observant with release notes from now on.

you’re welcome :slight_smile:

Grr, I was wrong the issue is still here. Sigh :frowning:
Will try to investigate further than.

Edit might have something to do with Leap motion in this instance.

Still happening :confused:
Here is the Oculus runtime log:


OVR::DeviceManagerThread - running (ThreadId=0xC80).
[TrackingManager] Entering tracking thread
OVR::Win32::HIDDevice - Opened '\\?\hid#vid_2833&pid_0021#7&1b8fc2c&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}'
                    Manufacturer:'Oculus VR, Inc.'  Product:'Rift DK2'  Serial#:'MSCEM807JHC4KN00Z100'  Version:'212'
OVR::SensorDevice - Closed '\\?\hid#vid_2833&pid_0021#7&1b8fc2c&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}'
OVR::Win32::HIDDevice - Closed '\\?\hid#vid_2833&pid_0021#7&1b8fc2c&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}'
[TrackingManager] Broadcasting new HMD count = 0
OVR::Win32::HIDDevice - Opened '\\?\hid#vid_2833&pid_0021#7&1b8fc2c&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}'
                    Manufacturer:'Oculus VR, Inc.'  Product:'Rift DK2'  Serial#:'MSCEM807JHC4KN00Z100'  Version:'212'
[Sensor2Impl] Repeated 2 IMU samples: 2000 2 0
BruteMatcher: Model 0 points, SampleRadius 5.0 deg, 0 samples, 0 triangles
[TrackingManager] Broadcasting new HMD count = 1
Set ISO Interface to 7 successfully
[AppFocusObserver] Reacting to display change notification (WM_DISPLAYCHANGE).
[AppFocusObserver] Reacting to display change notification (WM_DISPLAYCHANGE).
[AppFocusObserver] Reacting to display change notification (WM_DISPLAYCHANGE).
[AppFocusObserver] Reacting to display change notification (WM_DISPLAYCHANGE).
[Sensor2Impl] Sample Timestamp wrap: 0000000100003957, was 00000000ffffeb4c
[Sensor2Impl] Lost 14 IMU samples: 15984 2 16
[ExternalCamera] Skipped 2 frames
[Sensor2Impl] Lost 15 IMU samples: 16983 2 17
[Sensor2Impl] Sample Timestamp wrap: 000000020000334a, was 00000001ffffe53e
[Sensor2Impl] Sample Timestamp wrap: 0000000300002c94, was 00000002ffffde88
[Sensor2Impl] Sample Timestamp wrap: 0000000400000bc7, was 00000003ffffbdbc
[Sensor2Impl] Sample Timestamp wrap: 0000000500003331, was 00000004ffffe525
[Sensor2Impl] Lost 3 IMU samples: 4994 2 5
[TrackedHMD] cameraToHMDoffset: 61552, was 0
[ModulationModel] Modulation sequence decoding failed
Resetting WorldFromCamera translation to default

Camera Aligned with Gravity: change 37.2 deg, 0 mm, conf 0.0707
  Camera Position (0.0, 0.0, 0.0)
  Up in Camera Frame (-0.169, 0.799, -0.577)


Camera Aligned with Gravity: change 3.3 deg, 17 mm, conf 0.274
  Camera Position (-9.1, 13.9, 0.8)
  Up in Camera Frame (-0.136, 0.826, -0.548)


Camera Aligned with Gravity: change 3.5 deg, 13 mm, conf 0.48
  Camera Position (-19.3, 22.1, -0.2)
  Up in Camera Frame (-0.093, 0.847, -0.524)

[TrackedHMD] Initial camera latency: 0.98 frames
[Sensor2Impl] Lost 18 IMU samples: 19979 2 20

Camera Aligned with Gravity: change 6.9 deg, 21 mm, conf 0.686
  Camera Position (-38.6, 29.1, -4.2)
  Up in Camera Frame (0.004, 0.872, -0.489)

Early Tracking Recovery
Early Tracking Recovery
[TrackedHMD] Ransac failed (eliminated 5 out of 5 input blobs)
[TrackedHMD] Ransac failed (eliminated 6 out of 6 input blobs)
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
[Sensor2Impl] Lost 2 IMU samples: 20979 20 22
[Sensor2Impl] Lost 7 IMU samples: 8990 2 9
[TrackedHMD] Ransac failed (eliminated 5 out of 5 input blobs)
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
[TrackedHMD] Ransac failed (eliminated 7 out of 7 input blobs)
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
[ModulationModel] Modulation sequence decoding failed
Early Tracking Recovery
[Sensor2Impl] Lost 3 IMU samples: 3996 2 5
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
[Sensor2Impl] Lost 3 IMU samples: 4995 2 5
[Sensor2Impl] Lost 4 IMU samples: 1998 2 6
[Sensor2Impl] Lost 3 IMU samples: 1998 2 5
[Sensor2Impl] Lost 14 IMU samples: 15983 2 16
{ERR-017} [HMD] WARNING: LED state change unverified!
[Sensor2Impl] Lost 2 IMU samples: 1998 2 4
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
[Sensor2Impl] Lost 2 IMU samples: 3996 2 4
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
[Sensor2Impl] Lost 2 IMU samples: 1998 2 4
Early Tracking Recovery
[Sensor2Impl] Lost 3 IMU samples: 19980 20 23
[Sensor2Impl] Lost 4 IMU samples: 4995 2 6
[ModulationModel] Modulation sequence decoding failed
[Sensor2Impl] Lost 19 IMU samples: 20979 2 21
[Sensor2Impl] Lost 13 IMU samples: 1998 2 15
[Sensor2Impl] Lost 2 IMU samples: 3996 2 4
[Sensor2Impl] Lost 2 IMU samples: 1998 2 4
{ERR-017} [HMD] WARNING: LED state change unverified!
[Sensor2Impl] Lost 2 IMU samples: 1998 2 4
[Sensor2Impl] Lost 4 IMU samples: 19980 20 24
[Sensor2Impl] Sample Timestamp wrap: 000000060000062e, was 00000005ffffb823
[Sensor2Impl] Lost 16 IMU samples: 18106 2 18
[Sensor2Impl] Lost 2 IMU samples: 3996 2 4
[FrameCounterSync] Unable to find time for frame 175772, last was 175771
[Sensor2Impl] Lost 13 IMU samples: 14984 2 15
[Sensor2Impl] Lost 2 IMU samples: 1998 2 4
[Sensor2Impl] Lost 2 IMU samples: 3996 2 4
[Sensor2Impl] Lost 2 IMU samples: 1998 2 4
[Sensor2Impl] Lost 4 IMU samples: 19980 20 24
[Sensor2Impl] Lost 14 IMU samples: 19979 20 34
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
[Sensor2Impl] Lost 2 IMU samples: 21977 20 22
{ERR-017} [HMD] WARNING: LED state change unverified!
[Sensor2Impl] Lost 2 IMU samples: 21977 20 22
[Sensor2Impl] Lost 2 IMU samples: 20979 20 22
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
[Sensor2Impl] Lost 2 IMU samples: 20978 20 22
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
[Sensor2Impl] Lost 2 IMU samples: 19980 20 22
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
{ERR-017} [HMD] WARNING: LED state change unverified!
[Sensor2Impl] Lost 4 IMU samples: 5994 2 6
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
Early Tracking Recovery
[Sensor2Impl] Lost 2 IMU samples: 19979 20 22
[Sensor2Impl] Lost 3 IMU samples: 19980 20 23
[Sensor2Impl] Lost 13 IMU samples: 14985 2 15
[Sensor2Impl] Lost 2 IMU samples: 1998 2 4
[Sensor2Impl] Lost 2 IMU samples: 3995 2 4
[Sensor2Impl] Lost 2 IMU samples: 3996 2 4
[ModulationModel] Modulation sequence decoding failed
Early Tracking Recovery
Early Tracking Recovery
[ModulationModel] Modulation sequence decoding failed
OVR Error:
  OVRTime: 23510.783046
  Time: 2015-08-07 03:15:13 [803:916:100]
  Code: -3000 -- ovrError_Initialize
  System error: -2005270523 (887a0005) -- The GPU device instance has been suspended. Use GetDeviceRemovedReason to determine the appropriate action.

  Description: graphics->Device->CreateQuery(&queryDesc, &query.GetRawRef())
D3D function returned fail HRESULT at ..\..\..\Src\CAPI\CAPI_PoseLatch.cpp on line 188 : [Code=887a0005 = -2005270523] The GPU device instance has been suspended. Use GetDeviceRemovedReason to determine the appropriate action.
OVR Error:
  OVRTime: 23510.785214
  Time: 2015-08-07 03:15:13 [805:917:800]
  Code: -3000 -- ovrError_Initialize
  System error: -2005270523 (887a0005) -- The GPU device instance has been suspended. Use GetDeviceRemovedReason to determine the appropriate action.

--//And the error gets repeated to infinity//--