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Question by J450N · Jun 09, 2015 at 01:39 PM · graphics

Windows Builds from Unity 4.2 fail to create Gfx Device

I'm having a reproducible issue occurring on a single machine, with no other tested computers able to reproduce the error. When launching a Windows Standalone (32-bit) build, compiled from Unity 4.2, the subject computer will display a black a screen, and the Ouput log will include the following:

 Initialize engine version: 4.2.1f4 (4d30acc925c2)
 GfxDevice: creating device client; threaded=1
 d3d: no support for this device type (accelerated/ref)
 D3D9 initialization failed, trying OpenGL
 GfxDevice: creating device client; threaded=1
 OpenGL:
     Version:  OpenGL 4.5 [4.5.0 NVIDIA 353.06]
     Renderer: GeForce GTX 860M/PCIe/SSE2
     Vendor:   NVIDIA Corporation
     VRAM:     1995 MB (via DXGI)
     Extensions: [...]
 GLContext: failed to activate 10000: The requested resource is in use.
 
 ARB shader compile error: (null) for !!ARBvp1.0 ...
 

This same build ran correctly on this subject computer before updating NVidia drivers to ver 53.06, after which the this error occurs 100% of the time.

GPU: GeForce GTX 860M OS: Windows 7, 64-bit

Here are some tests performed: - Program was launched with commandline flags to force D3D9, D3D11, and OpenGL modes. All launch modes produced the same error.

  • Created a new Unity Test App Project, a clean project with one script displays system information. The test program was compiled out of Unity 4.2 and run on the subject computer. When launched, the exact same failure occurs.

  • The same new Unity Test App Project was compiled out of Unity 5.0.1. When launched on the subject computer, the app ran correctly and the Direct3D device was created like normal and no shader compilation errors occurred.

Some other issues prevent us from upgrading our project to 5.0.1 at the moment, and want to see if there is a fix we can provide this client while we work towards our next release.

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