Step 1 Downloading vbios update from GPU vendor
Check your config below
cat /etc/default/grub/
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt nofb video=vesafb:off video=efifb:off video=simplefb:off initcall_blacklist=sysfb_init"
---
cat /etc/modprobe.d/vfio.conf
options vfio-pci ids=10de:13c2,10de:0fbb disable_vga=1
---
cat /etc/modprobe.d/kvm.conf
options kvm ignore_msrs=1 report_ignored_msrs=0
---
cat /etc/pve/qemu-server/100.conf
bios: ovmf boot: order=ide2;scsi0;net0 cores: 2 cpu: host,hidden=1,flags=+pcid,+kvm_pv_unhalt,+kvm_pv_eoi,hv_vendor_id=NV43FIX,kvm=off
efidisk0: local-lvm:vm-100-disk-0,efitype=4m,pre-enrolled-keys=1,size=4M
hostpci0: 0000:01:00,pcie=1,x-vga=1,romfile=gtx970as17patched.rom
ide2: local:iso/virtio-win-0.1.229.iso,media=cdrom,size=522284K
machine: pc-q35-7.1
memory: 6144
meta: creation-qemu=7.1.0,ctime=1674357885
name: win10
net0: virtio=D2:DF:19:FF:B4:FA,bridge=vmbr0,firewall=1
numa: 1
ostype: win10
scsi0: local-lvm:vm-100-disk-1,cache=writeback,iothread=1,size=64G
scsihw: virtio-scsi-single
smbios1: uuid=937b46f9-8aec-41f7-a5ea-223f1df7d092
sockets: 1
tablet: 0
vga: none
vmgenid: d3cef14b-029a-4c2c-933a-4b95fbbbcbac