[vfio-users] Secondary X server with secondary GPU

[Rokas Kupstys]

> Is it true that I can't setup a single X server with one NV and one
> IGD cards together?
I am not quite sure i understand... But if you want to use your IGD for
primary desktop rendering while being able to run games on secondary
more powerful GPU while still being in your primary X session then you
are looking for something like bumblebee or virtualgl. Bumblebee may or
may not work on a desktop setup. I have not explored it as my hardware
setup does not allow me to use mesa on my primary graphics card (this is
a bumblebee requirement). I did not try virtualgl either, but it should
do what you want, however i am not sure of performance. Also i do not
know how to set that up on a local machine.

Rokas Kupstys

On 04/01/17 09:05, Daimon Wang wrote:
> Hi Rokas Kupstys
> Thanks for the info.
> Is it true that I can't setup a single X server with one NV and one
> IGD cards together? I tried, failed with X but success with Windows.
>
> Earlier, when I could't pass through my primary GPU due to
> configuration issue, I also tried to pass through the secondary one.
> Since pass through the primary GPU could fail due to "polluted" by
> display driver, I thought the secondary GPU is more "clean", as
> there's no output. But the Guest didn't display anything on it either :(
>
> Regards,
> Daimon
>
>
> On Saturday, December 31, 2016 8:00 PM, Rokas Kupstys
> <rokups at zoho.com> wrote:
>
>
> This is not exactly vfio-related information, however i feel it would be
> relevant to many people here. In case i am wrong to post it here - sorry
> in advance.
>
> Just posted a small tutorial on how to set up second X server running on
> second GPU. Aim of this procedure is to allow us use second GPU on our
> host OS while kvm VM that usually gets GPU attached to it is offline.
> Now all you gamers can enjoy those linux titles on linux OS while
> resorting to windows VM for titles that have no linux support.
>
> https://rokups.github.io/blog/#!pages/second-xserver-second-gpu.md
> <https://rokups.github.io/blog/#%21pages/second-xserver-second-gpu.md>
>
> P.S. happy new virtualized year
>
> -- 
> Rokas Kupstys
>
>
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