[SOLVED] Proxmox vGPU set-up troubleshooting

[cgirlamo]

Hello,

We are having some trouble setting up vGPU on our proxmox host with 3 Ada RTX 6000 GPUs.

We are running on proxmox v. 9.1.7 with kernel 6.17.13-2-pve, and I have tried using the vGPU driver version 20.0, 19.4, and 18.4.

After installing the driver, nvidia-smi will show all three GPUs, and running nvidia-smi -s will show the different partitions that we could potentially use. However, when I check in /sys/class/mdev_bus, the directory is empty, and when I try and attach a gpu to a VM in the web gui, the mdev option is greyed out.

I have tried setting the display mode to physical_display_disabled, and reloading the necessary modules. IOMMU is enabled in the bios.

Any help would be greatly appreciated,

nvidia-smi
Thu Apr 2 16:11:06 2026
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 580.126.08 Driver Version: 580.126.08 CUDA Version: N/A |
+-----------------------------------------+------------------------+----------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+========================+======================|
| 0 NVIDIA RTX 6000 Ada Gene... On | 00000000:5A:00.0 Off | 0 |
| 30% 34C P8 27W / 300W | 0MiB / 46068MiB | 0% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+
| 1 NVIDIA RTX 6000 Ada Gene... On | 00000000:63:00.0 Off | 0 |
| 30% 33C P8 22W / 300W | 0MiB / 46068MiB | 0% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+
| 2 NVIDIA RTX 6000 Ada Gene... On | 000000006:00.0 Off | 0 |
| 30% 34C P8 33W / 300W | 0MiB / 46068MiB | 0% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| No running processes found |
+-----------------------------------------------------------------------------------------+




nvidia-smi vgpu -s
GPU 00000000:5A:00.0
NVIDIA RTX6000-Ada-1B
NVIDIA RTX6000-Ada-2B
NVIDIA RTX6000-Ada-1Q
NVIDIA RTX6000-Ada-2Q
NVIDIA RTX6000-Ada-3Q
NVIDIA RTX6000-Ada-4Q
NVIDIA RTX6000-Ada-6Q
NVIDIA RTX6000-Ada-8Q
NVIDIA RTX6000-Ada-12Q
NVIDIA RTX6000-Ada-16Q
NVIDIA RTX6000-Ada-24Q
NVIDIA RTX6000-Ada-48Q
NVIDIA RTX6000-Ada-1A
NVIDIA RTX6000-Ada-2A
NVIDIA RTX6000-Ada-3A
NVIDIA RTX6000-Ada-4A
NVIDIA RTX6000-Ada-6A
NVIDIA RTX6000-Ada-8A
NVIDIA RTX6000-Ada-12A
NVIDIA RTX6000-Ada-16A
NVIDIA RTX6000-Ada-24A
NVIDIA RTX6000-Ada-48A
NVIDIA RTX6000-Ada-3B

GPU 00000000:63:00.0
NVIDIA RTX6000-Ada-1B
NVIDIA RTX6000-Ada-2B
NVIDIA RTX6000-Ada-1Q
NVIDIA RTX6000-Ada-2Q
NVIDIA RTX6000-Ada-3Q
NVIDIA RTX6000-Ada-4Q
NVIDIA RTX6000-Ada-6Q
NVIDIA RTX6000-Ada-8Q
NVIDIA RTX6000-Ada-12Q
NVIDIA RTX6000-Ada-16Q
NVIDIA RTX6000-Ada-24Q
NVIDIA RTX6000-Ada-48Q
NVIDIA RTX6000-Ada-1A
NVIDIA RTX6000-Ada-2A
NVIDIA RTX6000-Ada-3A
NVIDIA RTX6000-Ada-4A
NVIDIA RTX6000-Ada-6A
NVIDIA RTX6000-Ada-8A
NVIDIA RTX6000-Ada-12A
NVIDIA RTX6000-Ada-16A
NVIDIA RTX6000-Ada-24A
NVIDIA RTX6000-Ada-48A
NVIDIA RTX6000-Ada-3B

GPU 000000006:00.0
NVIDIA RTX6000-Ada-1B
NVIDIA RTX6000-Ada-2B
NVIDIA RTX6000-Ada-1Q
NVIDIA RTX6000-Ada-2Q
NVIDIA RTX6000-Ada-3Q
NVIDIA RTX6000-Ada-4Q
NVIDIA RTX6000-Ada-6Q
NVIDIA RTX6000-Ada-8Q
NVIDIA RTX6000-Ada-12Q
NVIDIA RTX6000-Ada-16Q
NVIDIA RTX6000-Ada-24Q
NVIDIA RTX6000-Ada-48Q
NVIDIA RTX6000-Ada-1A
NVIDIA RTX6000-Ada-2A
NVIDIA RTX6000-Ada-3A
NVIDIA RTX6000-Ada-4A
NVIDIA RTX6000-Ada-6A
NVIDIA RTX6000-Ada-8A
NVIDIA RTX6000-Ada-12A
NVIDIA RTX6000-Ada-16A
NVIDIA RTX6000-Ada-24A
NVIDIA RTX6000-Ada-48A
NVIDIA RTX6000-Ada-3B