Premiere Pro CC & Media Encoder GPU acceleration problem
After 2017 update, my system (S.O. Windows 10 Home, i7-4710HQ, nvidia gtx850m) take an extremly longer amount of time to render - same settings - than before the update. I immediately thought it could be a problem with the GPU acceleration, even if either in Premiere Pro project settings and in Media Encoder the mercury GPU (CUDA) mode was selected. So I thought that maybe it could be a problem with the lastest video driver (375.95) so I made some test rolling back version until v.368.22, with no changes.
Testing the system with GPU-Z, just to have an idea of the GPU load during some rendering, I figured out that the gtx850m GPU is not used at all and the same occur at the CPU, but the integrated Intel HD4600 is maxed out, running 100% load all the time, and the same occur even if I select the Only Software Mercury Engine mode.
Any suggestion?
The GPUsniffer report an initialization failure (the same with any version of driver tested):
C:\Program Files\Adobe\Adobe Premiere Pro CC 2017>gpusniffer
--- OpenGL Info ---
Vendor: NVIDIA Corporation
Renderer: GeForce GTX 850M/PCIe/SSE2
OpenGL Version: 2.1.2 NVIDIA 375.95 10.18.15.4256
GLSL Version: 1.20 NVIDIA via Cg compiler
Monitors: 1
Monitor 0 properties -
Size: (0, 0, 1366, 768)
Max texture size: 16384
Supports non-power of two: 1
Shaders 444: 1
Shaders 422: 1
Shaders 420: 1
--- GPU Computation Info ---
Found 2 devices supporting GPU computation.
CUDA Device 0 -
Name: GeForce GTX 850M
Vendor: NVIDIA
Capability: 5
Driver: 8
Total Video Memory: 2048MB
OpenCL Device 1 -
Name: Intel(R) HD Graphics 4600
Vendor: Intel
Capability: 1.2
Driver: 1.2
Total Video Memory: 1921MB
* Not chosen because of initialization failure.
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