Hey,I want help for GPU passthrough

[Pnz]

I built a server with free hardware.
This is a match:
CPU: i5 3570
Motherboard: B75m-d3v
Graphics card: GTX650TI
Proxmox version: 5.3.5

There is a VT-d button on the motherboard, and I turn on the internal display. After the setup is complete, when I start the windows10 virtui machine, the gtx650ti has no signal output. I tried setting a romfile for it and changing the bios model, but it still didn't work. If this is about support issues? Can someone help me? Thank you.

 

[Chris]

Hi,
I am afraid you need to translate to English if you want some specific help. Nevertheless this might be a good starting point for you https://pve.proxmox.com/wiki/Pci_passthrough#GPU_PASSTHROUGH

 

[Pnz]

Hi,
I am afraid you need to translate to English if you want some specific help. Nevertheless this might be a good starting point for you https://pve.proxmox.com/wiki/Pci_passthrough#GPU_PASSTHROUGH

I am so sorry,it is the fault of chrome translation,I have change it,thank you so much.Hey,ah,if the Graphics must support uefi?

 

[Chris]

As I understand the GPU must support UEFI https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF#Prerequisites, but your card should be. You can test via the method described in the wiki under the section https://pve.proxmox.com/wiki/Pci_passthrough#How_to_known_if_card_is_UEFI_.28ovmf.29_compatible

 

[Pnz]

As I understand the GPU must support UEFI https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF#Prerequisites, but your card should be. You can test via the method described in the wiki under the section https://pve.proxmox.com/wiki/Pci_passthrough#How_to_known_if_card_is_UEFI_.28ovmf.29_compatible

After I try,it shows no type 3,maybe is the problem of graphics bios. I ask for the company to get bios and see what happen after reflashing it. thanks.

 

[Pnz]

As I understand the GPU must support UEFI https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF#Prerequisites, but your card should be. You can test via the method described in the wiki under the section https://pve.proxmox.com/wiki/Pci_passthrough#How_to_known_if_card_is_UEFI_.28ovmf.29_compatible

Ahh,Hi,When I setting q35 model,Console show that. How to solve？

 

[Luviz]

Not an answer to your question, but I'm running passthrough with seabios on a win10 VM and it works like a charm.

You must also make sure that the gpu is using the vfio-pci driver.
check with lspci -nnk

01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti XT [Radeon HD 7970/8970 OEM / R9 280X] [1002:6798]
        Subsystem: PC Partner Limited / Sapphire Technology Tahiti XT [Radeon HD 7970/8970 OEM / R9 280X] [174b:3001]
        Kernel driver in use: vfio-pci
        Kernel modules: radeon, amdgpu
01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti HDMI Audio [Radeon HD 7870 XT / 7950/7970] [1002:aaa0]
        Subsystem: PC Partner Limited / Sapphire Technology Tahiti HDMI Audio [Radeon HD 7870 XT / 7950/7970] [174b:aaa0]
        Kernel driver in use: vfio-pci
        Kernel modules: snd_hda_intel

Keep on reading and continue trying.

 

[Pnz]

Not an answer to your question, but I'm running passthrough with seabios on a win10 VM and it works like a charm.

You must also make sure that the gpu is using the vfio-pci driver.
check with lspci -nnk

01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti XT [Radeon HD 7970/8970 OEM / R9 280X] [1002:6798]
        Subsystem: PC Partner Limited / Sapphire Technology Tahiti XT [Radeon HD 7970/8970 OEM / R9 280X] [174b:3001]
        Kernel driver in use: vfio-pci
        Kernel modules: radeon, amdgpu
01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti HDMI Audio [Radeon HD 7870 XT / 7950/7970] [1002:aaa0]
        Subsystem: PC Partner Limited / Sapphire Technology Tahiti HDMI Audio [Radeon HD 7870 XT / 7950/7970] [174b:aaa0]
        Kernel driver in use: vfio-pci
        Kernel modules: snd_hda_intel

Keep on reading and continue trying.

Ahh,I have changed it to vfio-pci model,but still no signal output.....

 

[Pnz]

Not an answer to your question, but I'm running passthrough with seabios on a win10 VM and it works like a charm.

You must also make sure that the gpu is using the vfio-pci driver.
check with lspci -nnk

01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti XT [Radeon HD 7970/8970 OEM / R9 280X] [1002:6798]
        Subsystem: PC Partner Limited / Sapphire Technology Tahiti XT [Radeon HD 7970/8970 OEM / R9 280X] [174b:3001]
        Kernel driver in use: vfio-pci
        Kernel modules: radeon, amdgpu
01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti HDMI Audio [Radeon HD 7870 XT / 7950/7970] [1002:aaa0]
        Subsystem: PC Partner Limited / Sapphire Technology Tahiti HDMI Audio [Radeon HD 7870 XT / 7950/7970] [174b:aaa0]
        Kernel driver in use: vfio-pci
        Kernel modules: snd_hda_intel

Keep on reading and continue trying.

Now,I think is the problem of mother board,maybe b75 is not really support the hole function of vt-d.

 

[AlexLup]

There's been some reports that a GFX passthrough might work if you have a screen connected to the GFX so as to wake it up...