I need help setting up a second VM with PCI Passtrough

Hello.

I am running Ubuntu 20.04 with a windows VM, PCI passtrough and LookingGlass. This works very well and have done so for a while. Now I tried setting up a second windows VM with PCI passtrough, and a second monitor, keyboard and mouse for my daughter to play games on. Setting up the VM and getting windows installed went well, but when I pass trough the third graphics card it does not output anything to the monitor.

Specs.
Ryzen 9 3900x
Gigabyte Aorus Ultra X570
64gb ocz trident z
2 ADATA 1gb Nvme’s
1 Samsung Nvme
1 Radeon 5700XT
2 Nvidia 680

Setup.
Host:
-Ubuntu 20.04
-Radeon 5700XT (pci slot 1)
-1 Adata Nvme (nvme slot 1)
-32gb ram
-Mouse/keyboard/headset

Guest 1:
-Win 10
-XFX nvidia 680 passed trough (pci slot 2)
-1 Adata Nvme passed trough (nvme slot 2)
-16gb ram
-4 cores
-Mouse/Keyboard passed trough

Guest 2: (the new one)
-Win 10
-Gainward nvidia 680 passed trough (pci slot 3)
-1 Samsung nvme passed trough (nvme slot 3)
-16gb ram
-4 cores
-Mouse/Keyboard/Headset/Monitor

Virtual Machine Manager shows the new guest as running, and the mouse and keyboard is working, there just is nothing showing up on the monitor.
Does anyuone know what the problem might be?

1 Like

try adding a spice display to the problematic guest.

1 Like

To clarify, the problem was with the Gainward 680. It diden’t have a UEFI enabled vBIOS. I switched to a GeForce GTX 1050 Ti and everything was good.