Activating IOMMU support


New Member
Nov 18, 2023
Hello, I have a Dell OptiPlex 9020 running Proxmox 7.4-3

I have enabled VT for Direct I/O in the BIOS, but Proxmox tells me that IOMMU is not detected and I cannot virtualise PCI devices. Can someone help me with this?
2023-11-22 18_51_33-proxmox - Proxmox Virtual Environment.png

Yep, updating the kernel commandline and kernel modules did the trick. I can pass through my Intel Graphics device now :)
Great to hear, happy virtualizing :D


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