Alienware X17 R2 Almost 100%, no PCI / Device Control - EUFI Error?

[Nedly Cl]

Recently I began configuring Qubes 4.1 on an Alienware x17 but one of my final issues is PCI attachment or passthrough.

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I have managed to get almost everything operational. I had to solve USB keyboard issues, and update wifi for the killer wifi card. I also had to change some configurations in order to have backlight controls and had to adjust bios for graphics. I still need to solve PCI attaching and Bluetooth.

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I am trying to make use of the graphics card - nvidia 3080.

The card is recognized by dom0 - I can see it with lspci command.

In Qubes Manager - Qubes Settings, the Device tab is greyed out.

When I try to run qvm-pci in dom0 it says: 'failed to list 'pci' devices, this device type either does not exist or you do not have access to it'.

This is a EUFI board, and it seems to be EUFI ONLY. 

I found a forum where people solved the issue by disabling Volume Control in BIOS - but I do not see or have this option.

I have tried disabling all security in BIOS with no change. Secure boot is off, and all of Microsoft's other security utils are disabled.

This unit has Thunderbolt, which I noticed was mentioned in forums. I am not using the thunderbolt, and I tried disabling it once - dom0 did not operate fully and no VM could launch.

This issue is making it impossible for me to attach or perform passthrough of PCI devices to VM's...

Anyone have advice??? Is this a cemented EUFI limitation??

Thanks.