Quadro PCI Error 43

[theuser]

Hi,

Since weeks i'm tying to passthrough diffrent NVIDIA Quadro Cards (P400, P620 and P1000) to a Win10 VM.
The machine is SeaBIOS and gives me the following error when I try to launch the VM:

failed getting region info for VGA region index 8: Invalid argument
device does not support requested feature x-vga

When I disable "primary-GPU" the machine boots but I get the NVIDIA 43 driver not loaded error.
I did some research which revealed that this error is common on NVIDA consumer cards but shouldnt't happen on the Quadro line?

What do I need to change in order to make my machine boot or to preferably bypass the 43 error?

Thanks

 

[Stefan_R]

Error 43 is just a generic error code for "something went wrong, but we don't know what". Blame NVIDIA for that one.

Have you tried booting the VM with OVMF/UEFI?

 

[theuser]

Hi Stefan

Yes I've tried the OVMF/UEFI and it worked but only with the PCI-E device set to primary-GPU.
So this is the only way to get it working and I have to reinstall all my vm as UEFI?

Thanks

 

[Stefan_R]

So this is the only way to get it working and I have to reinstall all my vm as UEFI?

Pretty much. I've heard of some VGA cards working with SeaBIOS, but most GPUs only work with OVMF as the guest BIOS/UEFI implementation.