Optix acceleration seems to be broke for me in 4.9

TheKD

Whenever I try to use the optix option, I end up with this error

 

WARNING: dzneuraymgr.cpp(261): Iray ERROR - module:category(IRAY:RENDER):   1.3   IRAY   rend error: OptiX Prime error (Device rtpModelUpdate TL): Unknown error
WARNING: dzneuraymgr.cpp(261): Iray ERROR - module:category(IRAY:RENDER):   1.2   IRAY   rend error: CUDA device 0 (GeForce GTX 960): Scene setup failed
WARNING: dzneuraymgr.cpp(261): Iray ERROR - module:category(IRAY:RENDER):   1.2   IRAY   rend error: CUDA device 0 (GeForce GTX 960): Device failed while rendering
WARNING: dzneuraymgr.cpp(261): Iray ERROR - module:category(IRAY:RENDER):   1.2   IRAY   rend error: All workers failed: aborting render
WARNING: dzneuraymgr.cpp(261): Iray WARNING - module:category(IRAY:RENDER):   1.2   IRAY   rend warn : All available GPUs failed.
Iray INFO - module:category(IRAY:RENDER):   1.2   IRAY   rend info : Falling back to CPU rendering.

 

Also, it won't listen when I tell it that I want to stop rendering, I have to use the task manager and make it quit when optix is enabled.

Rouvard

You're not alone with this problem. I have the same problem with my two GEforce GTX 980ti

frank0314

Is your GPU driver updated?