For what it is worth - I have been through **almost** all of v304 (nvidia-current from USC) to latest xorg-edgers - in the end, here is the only currently working option for me, pseudo-code;
purge-ppa ppa:xorg-edgers # purged the mesa libraries mentioned above among other things. apt-get purge nvidia* nvidia-opencl* nvidia-libopencl* libcuda1* sh NVIDIA-Linux-x86_64-340.17.run dkms registration of modules -> "not necessary" gcc 4.6 used for driver, gcc 4.8 on system -> CC check ignored. Now: $ dpkg --list | grep -E '^ii.*(nvidia|cuda)' displays 'ii nvidia-settings 331.20-0ubuntu8' Driver from http://www.geforce.co.uk/search/search- results?search=linux%20x64%20340.17%20-freebsd%20-solaris -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in 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 _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
