VM on KVM/Ubuntu install - GPU Problems
Carlos Gustavo Ramirez Rodriguez
carlosgrr at gmail.com
Wed Jun 8 09:44:45 UTC 2016
>My condolences. There be dragons.
And I wish they could give me a ride.
>Perhaps you meant "incorrectly".
If I understood it correctly, you are saying that my card is not being
passed through correctly and the plymouth is just a bug?
Is there a way to check if the plymouth is misbehaving and doing things
"correctly" by mistake?
If the plymouth is misbehaving, is there a way to debug it, so that the
whole system could run "incorrectly" like the Plymouth?
Any recommended readings on this subject?
>If these don't help you, please give us more information on what you
>have done and things you may have tried. Logs etc are always helpful.
Hardware side: Asus P8Z77-v Deluxe - I7 3770 (both supporting VT-d).
GPU: Off-Board NVIDIA GTX 770 - Passed to another VM is working. (Kinda...
There's an anoying problem that if the video cable is connected to the
Video during the boot process, the video card can't be passed through, but
after the host has loaded the VFIO drivers, I can connect the cable, and it
works like a charm.)
IGD: Intel HD Graphics 4000. This one is the PCI I am trying to
passthrough, to a different VM than the previous one.
What logs/info may be helpful?
2016-06-08 3:45 GMT-03:00 Petter Adsen <petter at synth.no>:
> On Tue, 7 Jun 2016 21:40:17 -0300
> Carlos Gustavo Ramirez Rodriguez <carlosgrr at gmail.com> wrote:
> > Greetings,
> > I have installed KVM and I am trying to passthrough a GPU.
> My condolences. There be dragons.
> > During the installation of the VM Ubuntu the Plymouth logo shows
> > correctly but all the other stages appear garbled, which indicates
> > that the GPU is correctly passed.
> Perhaps you meant "incorrectly".
> > Can anyone indicate a solution or perhaps a document I should read to
> > fix the issue?
> Well, first off there's the VT-d thingy, make sure that is OK:
> There's quite a bit of information here:
> If these don't help you, please give us more information on what you
> have done and things you may have tried. Logs etc are always helpful.
> "I'm ionized"
> "Are you sure?"
> "I'm positive."
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