[vfio-users] Passthrough VGA on first slot

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Do cat /proc/iomem to find out who is using your GPU. I predict uvesafb or
something like that. Disable or uninstall this.
Also, don't you have pci-e 3.0 onboard?
On Oct 2, 2015 4:22 PM, "Pedro Henrique Lara Campos" <
pedro.laracampos at gmail.com> wrote:

> Hello masters of vfio. I've been playing with vfio for 3 weeks now, and
> here is a resume of what i got: When I put my loved GTX780 on the second
> pci-e slot of my GA-970A-DS3P everything works on Windows (guest) while my
> Linux (host) stays comfortable with a Radeon HD 6670.
> But, as I wouldn't be writing this email if nothing was wrong, my second
> pci-e slot is "PCIEX4" only, I believe that's because my FPS goes down and
> HDMI audio keeps crackin. I had to change the slots, my bios doesn't have
> an option to choose which GPU to use, so it uses the GTX, GRUB does it too,
> then gpu gets binded by modprobe and I have no video until XOrg starts on
> Radeon, if I start qemu, I've get:
>   "vfio_ecap_init: 0000:01:00.0 hiding ecap 0x19 at 0x900"
>   "BAR 3 mmap unsupported. Performance may be slow"
>   "vfio-pci 0000:01:00.0: Invalid ROM contents"
> No video on GTX, Windows boots normally, I can even hear notifications
> sounds, I can turn it off through "system_powerdown".
> Tried using a romfile, it only makes the third message goes away, no other
> thing changes...
>
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