Thanks for sharing your experience Phil. The "dnf install mesa-libOpenCL clinfo" was also what got things working for me as well.

I'll be doing a fresh Fedora install soon. Now we just have to wait and see if it survives a kernel update ;)

On 01/12/15 01:58 PM, Phil Evans wrote:

Hi, thanks again for your work on this Germano and Riley. I have just completed a clean install of fedora 23 on to a test hard drive. Updated fedora. I then followed your steps of adding rpm fusion free and non free. Updated. Installed the akmod nvidia and kernel devel packages. Updated. Rebooted. Installed nvidia cuda. Rebooted. Installed Darktable. Launched Darktable. No opencl. So I then ran the, dnf install mesa-libOpenCL clinfo command. Rebooted. And yes I can confirm opencl is working!!!! Thanks guys. Fedora gnome will be replacing my much loved arch Linux on my desktop so I will just have one Linux distro.
Also thanks for the Darktable version 2 information. Will give it a try.

On 1 Dec 2015 20:30, "Brandt, Riley" <r...@libertymail.net <mailto:r...@libertymail.net>> wrote:

    So for a new Fedora install, assuming the driver install worked
    properly, a user would really only need to:

    Enable the RPMFusion repos
    # dnf install akmod-nvidia "kernel-devel-uname-r == $(uname -r)"
    # dnf update -y
    reboot
    # dnf install xorg-x11-drv-nvidia-cuda

    Correct? With the possible added SELinux work around of running
    # modprobe nvidia-uvm after every reboot.

    On 2015-12-01 12:58, Germano Massullo wrote:

    Il 01/12/2015 19:43, Brandt, Riley ha scritto:

    It works! Thank you so much:)

    I am going to install Fedora as my main OS now that I have
    finished testing it on an old hard drive.

    You see? We managed to solve the problem :-)
    I would like to thank also Nicolas Chauvet from #rpmfusion that
    gave me the mesa-libOpenCL hint.
    I am glad that you have chosen Fedora as main OS. I personally
    use the Fedora KDE Spin, but Fedora support is great on all main
    desktop environments.

    So would the proper steps to install the Nvidia drives with
    OpenCL support be as follows?

    I inserted some comments below

    Enable the RPMFusion repos
    # dnf install akmod-nvidia "kernel-devel-uname-r == $(uname -r)"
    # dnf update -y
    reboot
    # dnf install xorg-x11-drv-nvidia-cuda
    # modprobe nvidia-uvm

    This modprobe is only a troubleshooting. It is needed when you do
    not have nvidia_uvm in loaded modules list (lsmod). If it fails
    to load you have to either run the modprobe command after every
    boot or disable SELinux. I would recommend the first choice. For
    further details see [1]

    # dnf install mesa-libOpenCL clinfo

    This is only a only a troubleshooting. It is needed when someone
    or something messed with the libOpenCL and your system is no
    longer having it under /usr/lib64/ folder.

    # updatedb

    This command is needed only when you have to use the # locate command

    The output from my previous commands:

    Everything seems okay.

    [1]: https://bugzilla.redhat.com/show_bug.cgi?id=1179166

    
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