Installing LinuxCNC on Debian 9

I got it in the case and found an old parallel port card in my box of junk. A couple insertions to clean the contacts and linux is seeing the port. I had also installed the Radeon drivers to get rid of an error message on startup. That added about 30k ns to my jitter so I took it back off. Slightly uglier graphics are fine with me.

I am thinking that I will order a cheap $20 BOB/cable combo and get things going. I can move to a Mesa board later on if I need it.

I would like to know how did you install the Nvidia drivers on preempt-RT kernel and which Nvidia driver was used?

At this point I don't remember how I did it. I probably just ticked the box to allow proprietary drivers to install and then searched for radeon in the software list.