VM on KVM/Ubuntu install - GPU Problems

Petter Adsen petter at synth.no
Wed Jun 8 06:45:53 UTC 2016

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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