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You see the topic. Since tha last nvidia-update, the option for opencl-support is grayed out within the darktable options. Does anyone has a hint how to correct this? Or do I simply have to wait?
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Related bug report: https://bugs.archlinux.org/task/39203
Most likely just have to wait.
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A temporary workaround if you want to run opencl (or cuda) program in current driver (334.21) is first run one program of that kind as root user, then you can run those programs normally. At least this workaround works for me.
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I second that, run a little cuda program and then start any programs that need opencl (darktable or whatever) and your gpu device should show up again.
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