gpu passthough

  1. M

    GVT-g - mediated device available_instances

    Following the instructions from the [official documentation]( I'm configuring GVT-g, and I observe there is a limited number of available_instances, as pictured in the attached screenshot. What determines this number...
  2. I

    Sandy Bridge GPU Passthrough

    So I recently picked up a couple old Optiplex 790’s, and I was wondering if they support GPU pass through. I have fiddled around with one of them (Xeon E3-1225v2) and wasn’t able to get pass through working, IOMMU would be enabled but no matter what I tried I was getting memory address errors in...
  3. L

    Dual GPU Passthrough to Same VM

    I'm struggling getting 2 Nvidia GPUs to passthrough to the same VM. I've been able to do this before even passing 4 GPUs to the same VM (using 1x Riser Cables). But now that I'm trying to passthrough the 2 GPUs actually connected directly to the x16 PCIe ports, I only seem able to pass one or...
  4. E

    GPU video pass through with mirrored console

    I have a Linux VM set to have GPU pass through. This allows me to use the host's HDMI output for it. I'm wondering if there is a way to also have the same (mirrored) output through the Proxmox console. This would be handy while troubleshooting, doing lots of that! :D
  5. M

    PVE Host crashes with NMI on Guest reboot: Nvidia H100 PCIE GPU passthrough

    # PVE Host crashes with NMI on Guest reboot: Nvidia H100 PCIE GPU passthrough Hello! This Is my first post in this forum, i hope it it satisfies the quality and level of specificity required for this place. Unfortunately, i couldn't find a set of guidelines of what should / must be included in...
  6. G

    Gpu passthrough

    Hi, I acquired some '' old '' component and I want to swap then in my home lab. I'm actually using a i7 2600k and just found a 2700x. But I'm running a window vm in which I passed a 1070ti. I use the igpu from the i7 for proxmox. But here I don't have any with the 2700x. Can I use a second...
  7. A

    GPU passthrough on Lenovo thinkpad P15 gen 1 laptop

    I have a beefy laptop that I have contemplated for a long to turn into my virtualization platform. It is maxed out with 128 Gigs of RAM and an nvidia RTX 5000 that has 16 GB GDDR6. Memory Interface. My primary consideration revolves around the potential underutilization of the GPU in the event...
  8. Z

    Hardware for GPU Passthrough

    Hi everyone, I have already tried to do GPU Passthrough, but without success, here is my configuration: - Ryzen 5 5600G - RX 6750 XT - CoolerMaster 800+ Gold - 2x8Go RAM - Omen motherboard from a pre-build pc The motherboard is very low end, so I can't unlock anything in bios. There is almost no...
  9. H

    When I start my windows and linux vms at the same time I get corruption

    Hi!, I am not really sure it's data corruption but it just seems like it. So, I have 2 vms that have separate GPUs assigned to them. When I start both of them, the one vm freezes for a bit and then it starts working again, but after I turn off the pc and boot it up again I get fsck on the screen...
  10. Z

    Problem Error 43 on AMD RX 6750XT FE

    Hi, I need help for fixed error 43 on Windows 11 with my RX 6750XT. Linux kernel : Linux 6.2.16-3-pve x86_64 /etc/default/grub : GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on initcall_blacklist=sysfb_init iommu=pt video=vesafb:off video=efifb:off" dmesg | grep -e IOMMU : [ 0.022685] DMAR...
  11. M

    Privileged LXC group IDs different to host after restore

    Hi, I have just done a clean install of PVE 8.1.3 after changing some hardware in the host. I have restored my Plex LXC and some of the groups have different IDs in the container than the host which is breaking my GPU transcoding. The render group is ID 107 in the LXC but 104 on the host. On...
  12. X

    iGPU passthrough not working for Windows, but working for Linux

    Hi everyone, I tried running Proxmox on a laptop and it seems to be working great, except for the iGPU passthrough for Windows. I took a look at the following documentation: This documentation seems to be working fine for Ubuntu but not in any shape...
  13. M

    [TUTORIAL] Windows 11 VM for gaming setup guide

    I just finished migrating my Windows 11 gaming VM from Unraid to Proxmox. Along the way I encountered some obstacles. To hopefully save other people some time I'm writing a detailed guide here on how I set up my system. Disclaimer: I am by no means an expert on this stuff. It is entirely...
  14. L

    Can't run WSL2 on 8.1 (VIDEO_DXGKRNL_FATAL_ERROR)

    Hi everyone, Whenever I run the CPU as host (needed for WSL2 afaik), I end up with the VM crashing every 11 minutes or so, or whenever I scan for hardware changes in the device manager. The BSOD is: VIDEO_DXGKRNL_FATAL_ERROR I have tried googling around to no avail. My setup: CPU: Ryzen 9...
  15. L

    Help with RTX3090 Passthrough (Code 43)

    Good morning everyone! I've been wrecking my brain for the last 2 days looking everywhere to get my RTX 3090 to passthrough without Code 43 error. Current Setup: Mobo: Crosshair VIII Dark Hero CPU: Ryzen 5900x No Integrated GPU (But I have a second RTX3090 and have tried using both)...
  16. C

    From Unraid to Proxmox for GPU passthrough?

    Hello everybody! I have a DeskMeet B660 with intel i3 13100 CPU, 32GB ram and an RX6600 GPU. Right now I am using unraid and it works for making windows VM and passing through the GPU. My only problem was that I had to turn ON CSM and disable rebar and so on to make it work, so my question is...
  17. E

    [TUTORIAL] AI Homelab: A guide into hardware to software considerations

    Hi everyone! I just release a new post detailing my journey in setting up an AI Homelab, covering everything from hardware choices to software intricacies (Proxmox, GPU Passthrough, Managing multiple env). The blog post is here ...
  18. C

    [SOLVED] RTX 4090 Passthrough : AMD, Proxmox and sadness

    Hi everyone, I'm losing my sanity a bit on this topic and I would like your previous help, let's begin! I passed the pcie as per the doc and installed Nvidia drivers from Nvidia, no nvidia-smi available but the driver seems there, also the gpu name doesn't appear on lspci but...
  19. O

    Convert Ubuntu VM from SeaBIOS to OVMF

    I have an active Ubuntu server 22 VM that I want to pass through a GPU (p2000) for hardware acceleration. Now when I set up this VM a long time ago I used the default machine (i440fx) and boot type (SeaBIOS), but the docs don't recommend those options for passthrough. The machine type was...


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!