GPU Passthrough suddenly stopped working on Windows 11 VM

[rifaterdemsahin]

I’m using the radeon v7 for the win11 VM, everything was working fine through multiple startups, driver update, gaming. After an otherwise normal shutdown (not sure if related but noticed a windows update notification, which I later uninstalled attempting to fix the problem, no luck), I haven’t been able to get it working again. The GPU is detected normally in virtmanager but at the VM startup it fails to start,


ERror

TASK ERROR: start failed: command '/usr/bin/kvm -id 111 -name BlueLionWindows11Games -no-shutdown -chardev 'socket,id=qmp,path=/var/run/qemu-server/111.qmp,server=on,wait=off' -mon 'chardev=qmp,mode=control' -chardev 'socket,id=qmp-event,path=/var/run/qmeventd.sock,reconnect=5' -mon 'chardev=qmp-event,mode=control' -pidfile /var/run/qemu-server/111.pid -daemonize -smbios 'type=1,uuid=0e40f7ee-7dea-478c-a11b-542ec7491959' -drive 'if=pflash,unit=0,format=raw,readonly=on,file=/usr/share/pve-edk2-firmware//OVMF_CODE_4M.secboot.fd' -drive 'if=pflash,unit=1,format=raw,id=drive-efidisk0,size=540672,file=/dev/pve/vm-111-disk-1' -smp '16,sockets=4,cores=4,maxcpus=16' -nodefaults -boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/bootsplash.jpg' -vga none -nographic -no-hpet -cpu 'host,hv_ipi,hv_relaxed,hv_reset,hv_runtime,hv_spinlocks=0x1fff,hv_stimer,hv_synic,hv_time,hv_vapic,hv_vpindex,+kvm_pv_eoi,+kvm_pv_unhalt' -m 12048 -readconfig /usr/share/qemu-server/pve-q35-4.0.cfg -device 'vmgenid,guid=e37c155c-d84b-4d8d-af7c-dbd29ea50982' -device 'usb-tablet,id=tablet,bus=ehci.0,port=1' -device 'vfio-pci,host=0000:03:00.0,id=hostpci0.0,bus=pci.0,addr=0x10.0,rombar=0,multifunction=on' -device 'vfio-pci,host=0000:03:00.1,id=hostpci0.1,bus=pci.0,addr=0x10.1' -chardev 'socket,id=tpmchar,path=/var/run/qemu-server/111.swtpm' -tpmdev 'emulator,id=tpmdev,chardev=tpmchar' -device 'tpm-tis,tpmdev=tpmdev' -chardev 'socket,path=/var/run/qemu-server/111.qga,server=on,wait=off,id=qga0' -device 'virtio-serial,id=qga0,bus=pci.0,addr=0x8' -device 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0' -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' -iscsi 'initiator-name=iqn.1993-08.org.debian:01:7d2c213dfb2a' -drive 'file=/var/lib/vz/template/iso/virtio-win-0.1.217.iso,if=none,id=drive-ide2,media=cdrom,aio=io_uring' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=102' -device 'ahci,id=ahci0,multifunction=on,bus=pci.0,addr=0x7' -drive 'file=/dev/pve/vm-111-disk-0,if=none,id=drive-sata0,cache=writeback,format=raw,aio=io_uring,detect-zeroes=on' -device 'ide-hd,bus=ahci0.0,drive=drive-sata0,id=sata0,bootindex=100' -netdev 'type=tap,id=net0,ifname=tap111i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown' -device 'rtl8139,mac=26:5E:27:F5:96:0C,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=101' -rtc 'driftfix=slew,base=localtime' -machine 'type=pc-q35-6.1+pve0' -global 'kvm-pit.lost_tick_policy=discard'' failed: got timeout

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https://forum.level1techs.com/t/sol...ently-stopped-working-on-windows-10-vm/171273