UE4 fails to load Tesla T4 drivers

Development Rendering
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1

Hi!

It seems unreal cannot pick properly the Tesla T4 drivers. We got many artifacts when rendering. Is there any hint about what it might be wrong? Windows 2019 does recognize properly the graphic card, and we are using the latests drivers from Nvidia.

Many thanks!

[2020.10.13-10.45.44:855][  0]LogD3D12RHI:     GPU DeviceId: 0x1eb8 (for the marketing name, search the web for "GPU Device Id")
[2020.10.13-10.45.44:855][  0]LogWindows: EnumDisplayDevices:
[2020.10.13-10.45.44:855][  0]LogWindows:    0. 'NVIDIA Tesla T4' (P:1 D:1)
[2020.10.13-10.45.44:855][  0]LogWindows:    1. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:855][  0]LogWindows:    2. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:855][  0]LogWindows:    3. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:855][  0]LogWindows:    4. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:855][  0]LogWindows:    5. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:855][  0]LogWindows:    6. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:855][  0]LogWindows:    7. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:855][  0]LogWindows:    8. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:856][  0]LogWindows:    9. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:856][  0]LogWindows:    10. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:856][  0]LogWindows:    11. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:856][  0]LogWindows:    12. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:856][  0]LogWindows:    13. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:856][  0]LogWindows:    14. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:856][  0]LogWindows:    15. 'NVIDIA Tesla T4' (P:0 D:0)
[2020.10.13-10.45.44:856][  0]LogWindows: DebugString: PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed PrimaryDriverLocationFailed FoundDriverCount:0 
[2020.10.13-10.45.44:856][  0]LogD3D12RHI:     Adapter Name: NVIDIA Tesla T4
[2020.10.13-10.45.44:856][  0]LogD3D12RHI:   Driver Version: Unknown (internal:Unknown, unified:Unknown)
[2020.10.13-10.45.44:856][  0]LogD3D12RHI:      Driver Date: Unknown
2

Thank you! but that’s mean the raytracing it won’t work, do it?

3

Try DX11 RHI

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