I am running ubuntu 14.04 64 bit and nvidia drivers 331.38 and had the same problem of OpenCL not being available in Darktable.
This got fixed for me by a solution proposed to fix another OpenCL issue here: http://askubuntu.com/questions/449507/nvidia-libopencl1-331-has-to-be-removed-before-installing-wine?rq=1 What I did was: sudo apt-get install nvidia-cuda-toolkit and then sudo apt-get install ocl-icd-opencl-dev After a reboot, Darktable's "activate OpenCL support" is not greyed out anymore and seems to work like it should. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1311362 Title: Ubuntu Gnome 14.04 - NVidia 331 - OpenCL broken (using Darktable) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1311362/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
