On Fri, 4 Nov 2022 20:55:37 +0000 Dan Stefura <dstefura@bluecatnetworks.com> wrote: > Try using the kernel parameter: intel_iommu=off It's work for me on Dell T140 with PERC H330 Adapter root@zurix:~# uname -a Linux zurix 5.10.0-19-amd64 #1 SMP Debian 5.10.149-2 (2022-10-21) x86_64 GNU/ Linux