Proxmox VM Setup Issue: USB Crashes and GPU Output Failure on PCI Ports

[smx52]

Hello Proxmox Community,

I'm currently setting up a VM on my computer and encountering two major issues:

1. USB Crash: When I try to use the USB on PCI Port 18:00.0, it causes a crash on the Proxmox host. This issue persists despite several troubleshooting attempts.
2. GPU Output Failure: The internal GPU fails to output to the monitor on a second VM, and Proxmox has not reported any errors that could point to a possible solution. Could I be missing something? Shouldn't passing through the entire AMD GPU (17:00.0) be sufficient?

Hardware:

• MAG X670E TOMAHAWK WIFI
• AMD Ryzen™ 9 7950X3D

Kernel Parameters Configuration:

"quiet iommu=pt amd_iommu=on default_hugepagesz=1G hugepagesz=1G hugepages=64 spec_store_bypass_disable=off nopti mitigations=off rd.driver.pre=vfio_pci apparmor=1 security=apparmor udev.log_priority=3 pcie_aspm=off pci=noaer pcie_acs_override=downstream,multifunction initcall_blacklist=sysfb_init video=simplefb:off video=vesafb:off video=efifb:off video=vesa:off disable_vga=1 vfio_iommu_type1.allow_unsafe_interrupts=1 kvm.ignore_msrs=1 modprobe.blacklist=radeon,nouveau,nvidia,nvidiafb,nvidia-gpu,snd_hda_intel,snd_hda_codec_hdmi,i915"

These settings have improved the VM's stability somewhat, reducing the frequency of DRM errors with NVIDIA.

Current modprobe.d Configuration:

root@pve:~# cat /etc/modprobe.d/*
blacklist amdgpu
options vfio-pci ids=1002:164e,1002:1640,1022:1649
options vfio-pci ids=1022:43f6
options vfio-pci ids=1022:43f7,1022:15b6,1022:15b7,1022:15b8
blacklist nvidiafb
blacklist mt7921e
blacklist xhci_pci
blacklist xhci_hcd
options vfio_iommu_type1 allow_unsafe_interrupts=1 kvm ignore_msrs=1
blacklist ccp

IOMMU Groups Information:

IOMMU Group 0:
    00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14da]
IOMMU Group 1:
    00:01.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14db]
IOMMU Group 2:
    00:01.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14db]
IOMMU Group 3:
    00:02.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14da]
IOMMU Group 4:
    00:02.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14db]
IOMMU Group 5:
    00:03.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14da]
IOMMU Group 6:
    00:04.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14da]
IOMMU Group 7:
    00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14da]
IOMMU Group 8:
    00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14dd]
IOMMU Group 9:
    00:08.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:14dd]
IOMMU Group 10:
    00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 71)
    00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
IOMMU Group 11:
    00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14e0]
    00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14e1]
    00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14e2]
    00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14e3]
    00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14e4]
    00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14e5]
    00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14e6]
    00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:14e7]
IOMMU Group 12:
    01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:2705] (rev a1)
IOMMU Group 13:
    01:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:22bb] (rev a1)
IOMMU Group 14:
    02:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 [144d:a808]
IOMMU Group 15:
    03:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f4] (rev 01)
IOMMU Group 16:
    04:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 17:
    04:04.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 18:
    04:05.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 19:
    04:06.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 20:
    04:07.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 21:
    04:08.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 22:
    04:0c.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 23:
    04:0d.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 24:
    06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125] (rev 05)
IOMMU Group 25:
    0a:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f4] (rev 01)
IOMMU Group 26:
    0b:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 27:
    0b:04.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 28:
    0b:05.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 29:
    0b:06.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 30:
    0b:07.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 31:
    0b:08.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 32:
    0b:0a.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 33:
    0b:0c.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 34:
    0b:0d.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f5] (rev 01)
IOMMU Group 35:
    0c:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 [144d:a808]
IOMMU Group 36:
    0d:00.0 Network controller [0280]: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter [14c3:0616]
IOMMU Group 37:
    11:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 [144d:a808]
IOMMU Group 38:
    12:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 [144d:a808]
IOMMU Group 39:
    13:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f7] (rev 01)
IOMMU Group 40:
    14:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f6] (rev 01)
IOMMU Group 41:
    15:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f7] (rev 01)
IOMMU Group 42:
    16:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] Device [1022:43f6] (rev 01)
IOMMU Group 43:
    17:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Raphael [1002:164e] (rev c9)
IOMMU Group 44:
    17:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt Radeon High Definition Audio Controller [1002:1640]
IOMMU Group 45:
    17:00.2 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] VanGogh PSP/CCP [1022:1649]
IOMMU Group 46:
    17:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15b6]
IOMMU Group 47:
    17:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15b7]
IOMMU Group 48:
    18:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:15b8]

Seeking Tips and Tricks: Has anyone else wrestled with these issues? I’m all ears for any guidance or clever fixes you might have. Thanks in advance for helping me navigate this maze!


Thank you in advance for your support and suggestions!