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Gobananas

VM GPU not displaying anything

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I am trying to get a GeForce GTX 750 Ti to do passthrough on a Windows 10 VM. Using the VNC works fine but when I use the GPU I see nothing but a blank screen.

1.PNG.55d38000abef039d19dfddc5394b912e.PNG

I am using the GPU as both the soundcard and GPU.

 

IOMMU: Enabled

 

>Nothing extra is in the IOMMU group:

IOMMU group 38:    [10de:1380] 42:00.0 VGA compatible controller: NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2)
[10de:0fbc] 42:00.1 Audio device: NVIDIA Corporation GM107 High Definition Audio Controller [GeForce 940MX] (rev a1)

 

I also tried some tricks from Spaceinvader One to include editing the xml file.

<driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x42' slot='0x00' function='0x0'/>
      </source>
      <rom file='/mnt/user/VMs/Vbios/NVIDIAGTX750Ti1536'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </hostdev>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x42' slot='0x00' function='0x1'/>
      </source>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </hostdev>

 

Here are the logs I get when booting up:

Aug 1 19:47:04 Media01 kernel: vfio-pci 0000:42:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
Aug 1 19:47:04 Media01 kernel: br0: port 2(vnet0) entered blocking state
Aug 1 19:47:04 Media01 kernel: br0: port 2(vnet0) entered disabled state
Aug 1 19:47:04 Media01 kernel: device vnet0 entered promiscuous mode
Aug 1 19:47:04 Media01 kernel: br0: port 2(vnet0) entered blocking state
Aug 1 19:47:04 Media01 kernel: br0: port 2(vnet0) entered forwarding state
Aug 1 19:47:05 Media01 avahi-daemon[5639]: Joining mDNS multicast group on interface vnet0.IPv6 with address fe80::fc54:ff:fe5d:28ed.
Aug 1 19:47:05 Media01 avahi-daemon[5639]: New relevant interface vnet0.IPv6 for mDNS.
Aug 1 19:47:05 Media01 avahi-daemon[5639]: Registering new address record for fe80::fc54:ff:fe5d:28ed on vnet0.*.
Aug 1 19:47:07 Media01 kernel: vfio_ecap_init: 0000:42:00.0 hiding ecap 0x1e@0x258
Aug 1 19:47:07 Media01 kernel: vfio_ecap_init: 0000:42:00.0 hiding ecap 0x19@0x900
Aug 1 19:47:07 Media01 acpid: input device has been disconnected, fd 5

 

I am not seeing any other logs to give me any clues.

 

2.thumb.png.d128d7b6b8df75dc852985a9da7a8743.png

 

I also tested/swapped cables. 

To check for video I have a monitor plugged directly in AND am using Splashtop that was confirmed working when I use VNC.

 

At this point I think I am missing the obvious and if so I clearly am not seeing it. 

 

I thank you for taking the time to read this and look forward to any help offered.

Edited by Gobananas

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