Thanks to Alberto Milone, there is now a patch for the latest NVIDIA driver, which is reported to include ‘hotplug’ support :https://pkgs.rpmfusion.org/cgit/nonfree/nvidia-kmod.git/plain/kernel_4.10.patch
I can confirm that this compiles OK when applied to driver 378.13, with kernel 4.10. I am not able to test hotplug functionality, as I do not have a suitable system.. So.. YMMV…
Thanks to Tomas Pruzina for the info, and link..
Robert Gadsdon. February 22, 2017.