[vfio-users] vfio help needed (nvidia GTX 750 Ti persistent code 43)

[Mogliii]

Dear Alex,

What do you mean you are suspicious of pci-stub?
All tutorials I've seen so far require you to prevent nuveau from
grabbing the card. Also in your very well written tutorial I followed
and helped me a lot.
(http://vfio.blogspot.jp/2015/05/vfio-gpu-how-to-series-part-3-host.html)

I just tried the MSI GTX 750 Ti with Bios mode (bios selection switch ->
1, followed by host reboot). But it behaves the same. I see the ovmf
bios and boot splash, but then loss of signal.
 

On 9/17/2015 12:53 AM, Alex Williamson wrote:
>
>
> [[[ 10. # dmseg | grep pci-stub
> [    1.263269] pci-stub: add 10DE:0FBC sub=FFFFFFFF:FFFFFFFF
> cls=00000000/00000000
> [    1.263287] pci-stub 0000:01:00.1: claimed by stub
> [    1.263296] pci-stub: add 10DE:1380 sub=FFFFFFFF:FFFFFFFF
> cls=00000000/00000000
> [    1.263304] pci-stub 0000:01:00.0: claimed by stub
> I'm always suspicious when pci-stub is a module that it's actually
> preventing use of the device, this adds some comfort, but still a little
> bit of suspicion.
>
>