Configure the system to not use the secondary GPU so it can be attached to a guest

Thanks for that, but it still provides the issue of the card not being seen properly.
I installed the drivers and so NTOP can see it, but nothing else can see it…
LSPCI was able to always see it, after I installed LSPCI that is.

Had to install the NVIDIA drivers after downloading them from NVIDIA…
Nothing in the repos for them.

Things only seem to be using the Qubes GPU…