Bob K Mertz

Not sure if you found a solution to this yet but after banging my head against the wall for an extremely long time I found that the solution (at least in my case) was pretty simple. Nvidia drivers seem to (intentionally?) cause errors if they detect a hypervisor. I found numerous people using straight QEMU, etc, that enable a "hidden" option in their XML file but Proxmox doesn't use that format. I finally found that there is an option for Proxmox but it's not available in the GUI. You'll need to edit the VM's config file (/etc/pve/qemu-server/XXX.conf) and add "hidden=1" to the CPU line. For example, I am using the host CPU emulation so my line is: cpu: host,hidden=1 You could also use "cpu: kvm64,hidden=1" etc, etc. Once you add this and start the VM up the Nvidia drivers should start responding to you properly. I am using a GTX 745 on an Ubuntu 20.04 VM and a Quadro K600 on a Pop!_OS 20.04 VM using Proxmox 6.2-4 Reference: https://bugzilla.proxmox.com/show_bug.cgi?id=875