HP Z440 Workstation - No IOMMU detected

ZaphodBeeblebrox

New Member
Mar 3, 2024
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Hi,
I have been struggling with this for weeks, so help would be greatly appreciated. I have a test VM setup on a fresh install of proxmox and am trying to use an installed graphics card to display to a TV.
In the hardware, PCI Device, I add the card, but get an error message stating No IOMMU detected, please activate it.See Documentation for further information. I have set up HP bios to enable VT-x and VT-d but when I run "dmesg | grep -e DMAR -e IOMMU" as instructed here I get a non result. I have also tried updating grub as per the rest of the instruction but I never get past the same error message. Can anyone help?
 
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