Control: tag -1 moreinfo On 2018-02-02 17:19, Krzysztof Marczak wrote: > Thank you for quick reply. > You were right. It's look like it's the same problem as reported in #888952 > When after reboot I don't run clinfo as a root, the NVidia OpenCL platform > is not visible. After running 'sudo clinfo' it starts to work properly. > It's reproducible all the time. I cannot reproduce the problem here. (Tried the 384.111 driver from stretch-backports, using both ocl-icl-libopencl1 and nvidia-libopencl1. Only possible difference is that I'm running a rather old non-distro kernel for unrelated reasons.)
But it should be easy for you to test the module loading mechanism, assuming you don't have X running using the nvidia driver: $ sudo modprobe -r nvidia # unload all nvidia modules $ lsmod | grep nvidia # expect no output $ nvidia-modprobe -u # NVIDIA's setuid root helper $ lsmod | grep nvidia # expect nvidia and nvidia-uvm If that doesn't work for you, the setuid helper nvidia-modprobe is not working properly on your system $ ls -la /usr/bin/nvidia-modprobe should print -rwsr-xr-x 1 root root ... ^ ^^^^ Andreas
