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Proxmox AMD GPU Passthrough
(lemmy.world)
Proxmox VE is a complete, open-source server management platform for enterprise virtualization. It tightly integrates the KVM hypervisor and Linux Containers (LXC), software-defined storage and networking functionality, on a single platform. With the integrated web-based user interface you can manage VMs and containers, high availability for clusters, or the integrated disaster recovery tools with ease.
It does seem a lot like the reset bug, but then you already tried that. :/ Kernel module aren't as easy to install and if you're missing the required flags it might just do nothing.
Should show the 6 flags =y
Or maybe some variation of manual reset...
https://forum.proxmox.com/threads/issues-with-intel-arc-a770m-gpu-passthrough-on-nuc12snki72-vfio-pci-not-ready-after-flr-or-bus-reset.130667/