update to 7.2, to use VirGL

Xgamerz · May 7, 2022

have dual gpu and modified grub file for gpu passthrough, and added only 2nd gpu ids into modprobe.d/vfio.conf file, now virgl not working i'm getting this msg -> TASK ERROR: no DRM render node detected (/dev/dri/renderD*), no GPU? - needed for 'virtio-gl' display

Code:

GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt pcie_acs_override=downstream,multifunction vfio_iommu_type1.allow_unsafe_interrupts=1 textonly video=astdrmfb video=vesafb:off video=efifb:off"

Whatever · May 11, 2022

Same story. Any ideas?

mvs · May 11, 2022

Check that driver of your virgl GPU is correctly loaded on host (e.g. not blacklisted as proposed in many GPU passthrough manuals).

0xd149e38e · May 12, 2022

I just learned about virgl, but I am still trying to get my head around it.

What are the requirements for virgl to work?

0xd149e38e · May 12, 2022

I think I got it "working". However I am not so sure about the performance.
There is a ton of screen tearing in videos, much more than in just plain spice.
I used default amdgpu drivers, with my RX6700XT.

Whatever · May 14, 2022

mvs said:
Check that driver of your virgl GPU is correctly loaded on host (e.g. not blacklisted as proposed in many GPU passthrough manuals).

You were right - some modules had been blacklisted. Thanks for the hint

Whatever · May 14, 2022

0xd149e38e said:
I think I got it "working". However I am not so sure about the performance.
There is a ton of screen tearing in videos, much more than in just plain spice.
I used default amdgpu drivers, with my RX6700XT.

Did you use Linux as guest. Am I correct that windows guest aren't supported by the moment?

Squ1sh · Jun 8, 2022

Whatever said:
Did you use Linux as guest. Am I correct that windows guest aren't supported by the moment?

Got that errormessage before/when powering on the guest so the os is'nt even loaded at that time.

Squ1sh · Jun 8, 2022

0xd149e38e said:
I think I got it "working". However I am not so sure about the performance.
There is a ton of screen tearing in videos, much more than in just plain spice.
I used default amdgpu drivers, with my RX6700XT.

How did you get it working ? I have an RX580 and get the no DRM render node detected too. But don't know what to do because the firmware-amd-graphics package seems to be already installed by proxmox-ve.

proale · Dec 8, 2022

I got the same error and solved it to edit "/etc/default/grub"

If you have edit the file for gpu passthrough, try to remove some modules, I tried this and got it work for RX560 and VirGL GPU:

GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt"

cyruspy · Feb 6, 2023

can VirGL be used with the nvidia provided binary driver?. I lost VirGL support after installing NVIDIA-Linux-x86_64-525.85.07-vgpu-kvm-custom.run:

Error:


TASK ERROR: no DRM render node detected (/dev/dri/renderD*), no GPU? - needed for 'virtio-gl' display

Modules:


root@bigiron:~# ls -l /dev/dri/
total 0
drwxr-xr-x 2 root root      60 Feb  6 19:24 by-path
crw-rw---- 1 root video 226, 0 Feb  6 19:24 card0
root@bigiron:~# lsmod |grep nvidi
nvidia_vgpu_vfio       69632  0
nvidia              56365056  11
mdev                   28672  1 nvidia_vgpu_vfio
vfio                   45056  4 vfio_pci_core,nvidia_vgpu_vfio,vfio_iommu_type1,mdev
drm                   614400  4 drm_kms_helper,nvidia,mgag200
root@bigiron:~# lsmod |grep nou
root@bigiron:~#

Dizel958 · Feb 16, 2023

A new driver version has been released NVIDIA-Linux-x86_64-525.85.27 NV_GRID_15.1
Who can dump the driver archive?

Dizel958 · Feb 16, 2023

Hi everybody. Does anyone have the opportunity to download these two archives from the nvidia website:
NVIDIA-GRID-Linux-KVM-510.108.03-513.91.zip
NVIDIA-GRID-Linux-KVM-510.108.03-514.08.zip

My registrations are unsuccessful.
Please share the files.

Neobin · Feb 17, 2023

Dizel958 said:
A new driver version has been released NVIDIA-Linux-x86_64-525.85.27 NV_GRID_15.1
Who can dump the driver archive?

Dizel958 said:
Hi everybody. Does anyone have the opportunity to download these two archives from the nvidia website:
NVIDIA-GRID-Linux-KVM-510.108.03-513.91.zip
NVIDIA-GRID-Linux-KVM-510.108.03-514.08.zip

My registrations are unsuccessful.
Please share the files.

Why do you not contact the NVIDIA-support then?!

Also:

I applied for a 90-day trial license but haven’t received a response. What should I do?

You should receive a response within 24 hours of your request. If you don’t receive a response within this time frame, please check your email’s spam and junk folders. In addition, please note that registration will be denied if you didn’t use a corporate/business email address.

https://www.nvidia.com/en-us/data-center/resources/vgpu-evaluation

I have strong doubts, that what you are here asking for is legal...

[0] https://www.nvidia.com/en-us/drivers/vgpu-software-driver

Dizel958 · Feb 17, 2023

Neobin said:
I have strong doubts, that what you are here asking for is legal...

And what's the problem with dropping the archive?
Other users gave a link to the archive with drivers of only another version.

t.lamprecht · Feb 17, 2023

Dizel958 said:
And what's the problem with dropping the archive?

As Neobin already said, violating NVIDIA's vGPU/GRID license would be illegal.
And while I did not check upon their license work (but you surely read the terms & conditions you agreed to on registering

) I highly doubt NVIDIA would be fine with publicly sharing this, as they sell upgrade to newer releases so (allowing to) redistributing such newer versions openly would go against their business goals.

Besides all that, this thread is about VirGL, not NVIDIA GRID - so a different topic anyway.

Dizel958 · Feb 17, 2023

t.lamprecht said:
As Neobin already said, violating NVIDIA's vGPU/GRID license would be illegal.
And while I did not check upon their license work (but you surely read the terms & conditions you agreed to on registering ) I highly doubt NVIDIA would be fine with publicly sharing this, as they sell upgrade to newer releases so (allowing to) redistributing such newer versions openly would go against their business goals.

Besides all that, this thread is about VirGL, not NVIDIA GRID - so a different topic anyway.

I don't need your license, but only the kvm vgpu driver. I know how to bypass the license without hacking anything and everything works the same way

t.lamprecht · Feb 17, 2023

Dizel958 said:
I don't need your license, but only the kvm vgpu driver. I know how to bypass the license without hacking anything and everything works the same way

Obviously nobody will just give you their license, that was never the problem. Again, if redistributing the driver is disallowed by their license, breaking the terms and risk that NVIDIA is voiding theirs by sharing it publicly seems just not a good idea.

Anyhow, this is the Proxmox Community forum, and definitively the wrong place to ask people for closed off NVIDIA drivers - so please stop spamming unrelated threads for people to violate their NVIDIA licenses here!

If you still think that's fine then just ask on NVIDIA support channels or some of NVIDIA focused community forums.

lvasconcelos · Nov 9, 2023

do I need to install these Nvidea drivers to make the Virgl work?

leesteken · Nov 9, 2023

lvasconcelos said:
do I need to install these Nvidea drivers to make the Virgl work?

VirGL allows the VM to use the GPU of the host. So, yes you need to have installed any necessary drivers for your GPU (and some libraries) to run OpenGL.

update to 7.2, to use VirGL

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