CUDA and bumblebee RHEL 7 Workstation

Hello All

Since upgrading to RHEL Workstation 7.5 nvidia drivers have stopped working if i have my laptop set to "discrete only", an issue with gdm that hasn't been fixed yet, i have switched to lightdm in the past and upgraded to the mainline kernel from elrepo in the past to get around it but even the workarounds are a bit flaky now.

So ive switched back to hybrid graphics and done a fresh install, was wondering if anyone could advise any caveats or "gotchas" i may need to watch out for getting bumblebee and cuda to work for applications like blender for example.

or is there somewhere i can source the primus switch application to logout and login to switch between the cards ?, i know nouveau can do this out of the box with "DRI_PRIME1" option but unfortunately i need the proprietary drivers.

Sorry for the novel post but i just wanted to make sure i covered all bases.

Kind Regards

Ryan