AMD iGPU (Raphael, Ryzen9 7900x) - System Reboots on Passthrough

nothingto

New Member
Mar 26, 2024
1
0
1
Proxmox 8:

I have two GPUs:

iGPU: Ryzen 9 7900x (Raphael)
dGPU: NVIDIA 4090
Motherboard: Asus Rog Strix 650E-F

What happens is that when I pass through my iGPU, the host just reboots automatically when I TURN ON my guest VM everytime. When I instead passed through my RTX 4090 GPU, it worked fine.

What I wanted to do was passthrough both of those gpus to separate VMs.

Here is my boot grub:

Code:
GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on iommu=pt nomodeset pcie_acs_override=downstream initcall_blacklist=sysfb_init"

Here is my /etc/modules
Code:
vfio
vfio_iommu_type1
vfio_pci

Here is my blacklists for GPU
Code:
blacklist amdgpu
blacklist radeon
blacklist nouveau
blacklist nvidia*

I added the PCI device for my iGPU, i have the settings where it ticks PCI-Express, ROM Bar, All Functions.

Whenever I start the VM, it automatically reboots the host/whole system. Any idea why this could be? I do have my motherboard set to POSTing with iGPU.
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!