Hi all, I know this topic has been up several times before. I have read most of the threads, but they did not help me all the way. I feel I am quite close to getting it working, I just need a little bit more help.
I have an Acer Aspire V3 laptop with integrated Intel graphics and also Nvidia Geforce GTX 850M, which I want to get to work with Darktable, in case there is any performance gain with OpenCL. I started out with installing Bumblebee, the Nvidia 340 driver and other stuff necessary to get Bumblebee working. By then Darktable wouln't load libOpenCL. Another thread on this list suggested that I needed nvidia-cuda-toolkit installed, and so I did. libOpenCL now loads, but I'm stuck. This is the relevent part of the output from 'optirun darktable -d opencl': [opencl_init] trying to load opencl library: '<system default>' [opencl_init] opencl library 'libOpenCL' found on your system and loaded [opencl_init] could not get platforms: -1001 [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system. [opencl_init] initial status of opencl enabled flag is OFF. The problem is the line "could not get platforms: -1001" /etc/OpenCL/vendors/nvidia.icd points to libnvidia-opencl.so.1 which is a symlink to libnvidia-opencl.so.340.46. One suggestion I found was that nvidia.icd should point to libcuda.so. I tried that, but it didn't make any difference. What can I do now to get it working? Hans Petter http://hpbirkeland.com
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