[Spice-devel] Passed trough video card screen access

[Alon Levy]

----- Original Message -----
> I wish to migrate from tower cases into nettops to make contribution
> to ecology by using KVM based virtualization. I made some
> expiriments that show me that i'am in right way but only one thing
> is obstacle from success.
> 
> Some days ago on my server i successfully passtrough AMD HD 6770
> video card in Windows 7 virtual machine controled by KVM. It's looks
> cool. After video card driver install i become unable to work with
> SPICE client display. It's show only black screen with Windows logo,
> video card output used as default.
> 
> I've got temporary solution to use VNC to access videocard
> framebuffer but it can't used to watch movies and play games. In way
> of using Spice i can watch movies and play old games without
> hardware 3D-acceleration.
> 
> Is there way to get access to screen of passed video card from
> Spice-client or standalone Spice-server for Windows guest is needed?
> 

Not with the current spice server & qemu.

In the setup you describe windows guest should show two cards, qxl and the hardware. Does it? and both should be accesible from display settings. I wonder if there is a clone option at that point, and what it actually does. If it would copy the rendered content of the hardware card to the framebuffer of spice you would at least get something on the client. But it would probably be streamed in mjpeg if so. Never tried pci passthrough. Would be interested to know if you try this.

> Best regards, Boris Morozov.
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