June 20Jun 20 Community Expert Not sure what updated. I upgraded to 7.3.1 and now can no longer start my VM. Getting the error message below. Any thoughts?Internal error: process exited while connecting to monitor: 2026-06-20T16:[removed] qemu-system-x86_64: -device {"driver":"vfio-pci","host":"0000:04:00.0","id":"hostdev0","bus":"pci.0","addr":"0x5"}: vfio 0000:04:00.0: group 0 is not viable Please ensure all devices within the iommu_group are bound to their vfio bus driver.
June 20Jun 20 Community Expert Can you provide a screen print from tools->system devices I suspect there are other parts to the pci device i.e. 04:00.1 all would need to be bound to vfio, the check box.
June 20Jun 20 Author Community Expert Please see below. Do I need to tick these boxes? I don't think I did in the past and it still worked?
June 21Jun 21 Community Expert 11 hours ago, steve1977 said:Please see below. Do I need to tick these boxes? I don't think I did in the past and it still worked?Yes or you need to pass both parts in the VM template I suspect you don't have the audio part.
June 22Jun 22 Author Community Expert Solution They were greyed out. What eventually worked was to change “Set PCIe ACS Override to Both”. No or downstream didn’t do the trick. Now it’s working again.
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