What do you mean by that - what did you “add” and how did you do that?
A virtual machine uses a virtual (virtualized) graphics card.
Real hardware (graphics card) can be passed through
and exclusively used by a virtual machine
if certain pre-conditions are met.
Look for “GPU pass through”
In the settings I added 2 PCI Devices, one for my nvdia gpu (its a rtx 2060)
and one for my audio controller called NVIDIA Corporation TU106 High Definition Audio Controller
Yes, I have an intel cpu so there is another graphics device left for the main machine
I searched for gpu passthrough and I believe it should work
I’ve verified my iommu working: docs.oracle. com/en/virtualization/virtualbox/6.0/admin/pcipassthrough.html
and i’ve followed this: wiki.archlinux. org/title/Kernel_parameters#GRUB
so i believe that is good, problem is when I right click “run” in virt-manager
[Sat, 18 Sep 2021 08:58:27 virt-manager 4710] DEBUG (connection:482) conn=qemu:///system changed to state=Active
typing this just to show what happens after i right click win 10 it says the first line, nothing changes, and then a few mins later it shows the second message
The documentation you cited is for VirtualBox
but it is probably essentially the same as for qemu/virt-Manager
for which the Arch references are here, I believe.
You should probably use these checks and instructions to get the pass-through working in virt-manager.
In the Windows guest OS you’ll then have to install the proper drivers, instead of the now present drivers for the virtual hardware.
I don’t know whether this can even work for the real hardware Audio controller.
In fact, I only have theoretical knowledge of all this - and very limited at that - because I do not have hardware capable of that and thus never could even try to get it to work personally.
Someone with experience might be able to help you further here - I can’t.
Good luck!