PCI Passthrough | Switch from GTX 950 to GTX 1080

Hello together,

I built a new PC about 3 months ago.
I switched completely to linux.

Nevertheless I have a Windows VM with a GTX950.

Yesterday I bought a GTX 1080 to replace the GTX 950.

After changing the graphics card and the configuration in Linux I passed the card into the VM.

Although everything was clean before the conversion, the Nvidia driver refused the installation.

The Nvidia triber aborts with the following message: This Nvidia Graphics Driver Is Not Compatiable with This Version of Windows.

And this although the exact same driver was installed before.

Do I have to pay attention to anything special after changing the graphics card?

Libvirt Config:
https://pastebin.com/saZevbEv

System:
AMD Threadripper 1950x
32 GB 3000 DDR4
NVME SSD (Samsung 970 Evo)
Linuxhost: Asus AMD RX480 8GB
Windowshost: Nvidia GTX1080 FE

edit:
OS: Arch linux
Current Kernel:
Linux Host01 4.18.12-arch1-1-ARCH #1 SMP PREEMPT Thu Oct 4 01:01:27 UTC 2018 x86_64 GNU/Linux

Try re-downloading the latest driver.

If that does not work, double check if the 1080 using vfio-pci?

hey,

I have already downloaded the latest driver several times and tried to install it.
I also tried to reinstall Windows 10.

no success :confused:

IOMMU Group:

IOMMU Group 14 09:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
IOMMU Group 14 09:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)

lspci -nnk -d:

 09:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce 
GTX 1080] [10de:1b80] (rev a1)
    Subsystem: ASUSTeK Computer Inc. GP104 [GeForce GTX 1080] [1043:8591]
    Kernel driver in use: vfio-pci
    Kernel modules: nouveau
09:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
    Subsystem: ASUSTeK Computer Inc. GP104 High Definition Audio Controller [1043:8591]
    Kernel driver in use: vfio-pci
    Kernel modules: snd_hda_intel

Oh that is not normal. The next thing I would have tried was DDU, if old driver versions where breaking the new installer, but a reinstall invalidates that.

You did use updated install media(ie version 1803 or 1809)? Or updating windows to the latest version.

It should be working, you have hidden kvm from the nvidia driver, the gpu is isolated with vfio-pci. You are getting the tianocore splash screen from the 1080?