GPU not recognized/wrong driver version detected after Update-VMGpuPartitionDriver

[e-t-l]

I created a VM with this script and the GPU seemed to be working fine on it. Then, I updated my GPU (RTX 4070) and ran Update-VMGpuPartitionDriver.ps1, and although the script completed successfully, Steam in the VM gives a warning about no GPU detected, and then gives another warning about an out-of-date GPU! Confusing. And the VM OS reports a GPU version different from the host OS (see last line of each scriptblock below)

Host OS dxdiag.exe:

           Card name: NVIDIA GeForce RTX 4070 Laptop GPU
        Manufacturer: NVIDIA
           Chip type: NVIDIA GeForce RTX 4070 Laptop GPU
            DAC type: Integrated RAMDAC
         Device Type: Full Device
          Device Key: Enum\PCI\VEN_10DE&DEV_2860&SUBSYS_3B5A17AA&REV_A1
       Device Status: 0180600A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_REMOVABLE|DN_NT_ENUMERATOR|DN_NT_DRIVER] 
 Device Problem Code: No Problem
 Driver Problem Code: Unknown
      Display Memory: 16009 MB
    Dedicated Memory: 7948 MB
       Shared Memory: 8061 MB
        Current Mode: Unknown
         HDR Support: Unknown
    Display Topology: Unknown
 Display Color Space: Unknown
     Color Primaries: Unknown
   Display Luminance: Unknown
         Driver Name: C:\WINDOWS\System32\DriverStore\FileRepository\nvltsi.inf_amd64_16678c565d093b7e\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvltsi.inf_amd64_16678c565d093b7e\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvltsi.inf_amd64_16678c565d093b7e\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvltsi.inf_amd64_16678c565d093b7e\nvldumdx.dll
 Driver File Version: 32.00.0015.7216 (English)
      Driver Version: 32.0.15.7216

VM OS dxdiag.exe:

          Card name: NVIDIA GeForce RTX 4070 Laptop GPU
        Manufacturer: Microsoft
           Chip type: Unknown
            DAC type: Unknown
         Device Type: Render-Only Device
          Device Key: Enum\PCI\VEN_1414&DEV_008E&SUBSYS_00000000&REV_00
       Device Status: 0180600A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_REMOVABLE|DN_NT_ENUMERATOR|DN_NT_DRIVER] 
 Device Problem Code: No Problem
 Driver Problem Code: Unknown
      Display Memory: Unknown
    Dedicated Memory: n/a
       Shared Memory: n/a
        Current Mode: Unknown
         HDR Support: Unknown
    Display Topology: Unknown
 Display Color Space: Unknown
     Color Primaries: Unknown
   Display Luminance: Unknown
         Driver Name: c:\windows\system32\driverstore\filerepository\vrd.inf_amd64_4dd0e6d66a75bb7e\vrd.sys,c:\windows\system32\driverstore\filerepository\vrd.inf_amd64_4dd0e6d66a75bb7e\vrd.sys
 Driver File Version: 10.00.26100.1150 (English)
      Driver Version: 10.0.26100.1150

Note the driver file names and driver file versions are totally different. Any idea what to do here?

[MarkShark2]

I had the same issue. I tried fixing the script, but I was unsuccessful. For some reason the wrong folder was being copied to C:\Windows\system32\HostDriverStore\FileRepository on the guest OS.

I fixed this by mounting the guest's drive in the host os, then copying over the correct folder from "C:\Windows\System32\DriverStore\FileRepository" (on the host) to "C:\Windows\system32\HostDriverStore\FileRepository" (on the guest). The folder you should copy over is the most recent nv_dispi.inf_amd64_{guid}. I also deleted the old folder in the guest os, but I'm not sure you need to.

I pretty much followed the instructions from here: https://gist.github.com/neggles/e35793da476095beac716c16ffba1d23#gathering-driver-files-manually

[e-t-l]

I fixed this by mounting the guest's drive in the host os, then copying over the correct folder from "C:\Windows\System32\DriverStore\FileRepository" (on the host) to "C:\Windows\system32\HostDriverStore\FileRepository" (on the guest). The folder you should copy over is the most recent nv_dispi.inf_amd64_{guid}. I also deleted the old folder in the guest os, but I'm not sure you need to.

I pretty much followed the instructions from here: https://gist.github.com/neggles/e35793da476095beac716c16ffba1d23#gathering-driver-files-manually

I did exactly this, but there's no change. It's still giving me errors about having no GPU or outdated drivers. @MarkShark2 would you mind running dxdiag.exe on your host PC and again in your guest VM, and share the "Display Devices" section of the output here (or at least share screenshots of the info on the "Display" tabs of the dxdiag GUI)?

[e-t-l]

Resolved via https://github.com/jamesstringerparsec/Easy-GPU-PV/issues/407#issuecomment-2670224210