On 7/8/20 4:40 PM, bradbury9 wrote:
Hi,
I have an integrated Intel graphics card and a Nvidia GTX 1080. I want
to set the integrated GPU as primary device, and create a windows
standalone VM (without qubes tools) for gaming.
My motherboard, don't know why, ignores when I set the integrated card
as primary GPU and default to "automatic", so now I am trying to hide
the 1080 devices (VGA is 01:00.0 and audio is 01:00.1) so Xen defaults
to the Intel graphics card and I could passthrough the NVidia card.
I have googled a bit, and looks like I have to add to /etc/default/grub
the following content:
rd.qubes.hide_pci=01:00.0,01:00.1 modprobe=xen-pciback.passthrough=1
xen-pciback.permissive
Problem: I see no /etc/default/grub nor /usr/share/grub/default in dom0...
How can I do the PCI hiding? Is there a sample grub config file anywhere?
Disk is encrypted, what additional steps should I do to get LUKS working
after the grub reinstall?
And finally, has anyone got experience with standalone windows VM with
GPU attached instalation? Any tips would be appreciated. :-)
1. /etc is on the encrypted disk, so is not available at boot time.
2. You might find some grub files in /boot, if Qubes was installed
with grub (I don't use grub). For EFI, look for xen.cfg in
/boot/efi/EFI....
3. nVidia is fairly antagonistic to virtual machines. There are
many stories online about problems making nVidia cards work
with Qubes.
Best of luck,
Mike.
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