I915ovmf.rom — Work

: Provides a display during the BIOS/UEFI splash screen and bootloader (e.g., GRUB, Windows Boot Manager).

Let's dissect the filename, as it is highly descriptive: i915ovmf.rom

Add the ROM to your hostpci device line in /etc/pve/qemu-server/VMID.conf : : Provides a display during the BIOS/UEFI splash