![]() I have followed the suggestions as best I could, setting my vendor_id to something random, turning on the kvm hidden_state, and even ioapic driver='kvm' - all to no avail. I have seen reports that AMD may now be checking to see if we run their GPUs in a VM and this could cause issues. If I run DDU to uninstall all AMD drivers, everything returns to normal as well. If I "disable device" for the iGPU in Device Manager (thanks to RDP, no way I could use a display connected via HDMI/DP), video output returns to normal. One issue I've been struggling with is that as soon as I install from AMD's site (or let Windows 10 install automatically) any AMD Radeon drivers for the iGPU, the video output becomes a complete mess (see pic attached below). ![]() Thsi involved the ACS override patch in the kernel (pcie_acs_override=downstream,multifunction) as well as clearnign the EFI frame buffer (video=efifb:off), I also had to boot to my hypervisor in UEFI mode, but my guest had to be in SeaBIOS mode on a Q35 machine. After much trial and error, I finally got my AMD Ryzen 4750G APU to pass through its iGPU to a Windows 10 VM in both Unraid and Proxmox (both Qemu/KVM).
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