Proxmox Windows 10 VM - Intel iGPU passed through ok, but no display

[dazed&confused]

Hi all,

I'm using Proxmox 7.4.3 and have a Windows 10 VM which I use for Blue Iris. I have successfully passed the Intel iGPU (CPU is an i7-6700) through to windows, and it is reported correctly within Windows (accessed through remote desktop):



Up to now I was running headless, however have now hooked up a monitor to keep an eye on Blue Iris. Before I start the VM, the display shows the Proxmox login:



But on starting the VM, the display goes blank, reporting no input. I assumed that, having passed the GPU through to Windows, it would work. What else do I need to do to?

Thanks!

 

[dazed&confused]

Here are the outputs of qm config and pveversion -v

qm config 101
agent: 1 bios: ovmf boot: order=sata0;ide2;net0 cores: 4 cpu: host,flags=+pcid;+spec-ctrl;+ssbd cpuunits: 1024 efidisk0: local-lvm:vm-101-disk-0,efitype=4m,pre-enrolled-keys=1,size=4M hostpci0: 0000:00:02,x-vga=1 hostpci1: 0000:02:00.0 ide2: local:iso/virtio-win-0.1.229.iso,media=cdrom,size=522284K machine: pc-q35-7.1 memory: 8192 meta: creation-qemu=7.1.0,ctime=1677023413 name: Win10-BlueIris net0: e1000=EE:F8:94:E0:52:7F,bridge=vmbr0,firewall=1 numa: 0 ostype: win10 parent: Snapshot1 sata0: local-lvm:vm-101-disk-1,discard=on,size=128G,ssd=1 scsi5: /dev/disk/by-id/ata-SATA_SSD_E0CD07191B2200025703,discard=on,iothread=1,size=125034840K scsihw: virtio-scsi-pci smbios1: uuid=fcabfaae-1728-4732-93db-03bca231b2f6 sockets: 1 usb0: host=174c:55aa vmgenid: dca8604e-70b2-4f4e-8fda-5a6e7448bbd5

pveversion -v
proxmox-ve: 7.4-1 (running kernel: 6.2.11-2-pve) pve-manager: 7.4-3 (running version: 7.4-3/9002ab8a) pve-kernel-6.2: 7.4-3 pve-kernel-5.15: 7.4-3 pve-kernel-6.2.11-2-pve: 6.2.11-2 pve-kernel-5.15.107-2-pve: 5.15.107-2 pve-kernel-5.15.74-1-pve: 5.15.74-1 ceph-fuse: 15.2.17-pve1 corosync: 3.1.7-pve1 criu: 3.15-1+pve-1 glusterfs-client: 9.2-1 ifupdown2: 3.1.0-1+pmx3 ksm-control-daemon: 1.4-1 libjs-extjs: 7.0.0-1 libknet1: 1.24-pve2 libproxmox-acme-perl: 1.4.4 libproxmox-backup-qemu0: 1.3.1-1 libproxmox-rs-perl: 0.2.1 libpve-access-control: 7.4-2 libpve-apiclient-perl: 3.2-1 libpve-common-perl: 7.4-1 libpve-guest-common-perl: 4.2-4 libpve-http-server-perl: 4.2-3 libpve-rs-perl: 0.7.6 libpve-storage-perl: 7.4-2 libspice-server1: 0.14.3-2.1 lvm2: 2.03.11-2.1 lxc-pve: 5.0.2-2 lxcfs: 5.0.3-pve1 novnc-pve: 1.4.0-1 proxmox-backup-client: 2.4.1-1 proxmox-backup-file-restore: 2.4.1-1 proxmox-kernel-helper: 7.4-1 proxmox-mail-forward: 0.1.1-1 proxmox-mini-journalreader: 1.3-1 proxmox-widget-toolkit: 3.6.5 pve-cluster: 7.3-3 pve-container: 4.4-3 pve-docs: 7.4-2 pve-edk2-firmware: 3.20230228-2 pve-firewall: 4.3-1 pve-firmware: 3.6-5 pve-ha-manager: 3.6.1 pve-i18n: 2.12-1 pve-qemu-kvm: 7.2.0-8 pve-xtermjs: 4.16.0-1 qemu-server: 7.4-3 smartmontools: 7.2-pve3 spiceterm: 3.2-2 swtpm: 0.8.0~bpo11+3 vncterm: 1.7-1 zfsutils-linux: 2.1.11-pve1