It just treats them as independent displays. It can either mirror them, or extend the desktop onto multiple. It can't do multiple independent desktops. A real life example of this is a motherboard with onboard video coupled with a discrete GPU in a slot. As long as the onboard isn't disabled, they can work in tandem, at least for software rendering. From what I understand, as well, DirectX 12 and Vulkan both support hardware rendering with multiple GPUs of different brands.
On Wed, Jan 18, 2017 at 1:45 PM, Will Marler <w...@wmarler.com> wrote: > That's an interesting scenario ... How does Windows handle multiple > graphics cards? Like, let's say this was all bare metal, and the machine > had 2 different models of nVidia cards and an ATI card, with a monitor > connected to each card. Would Windows be able to display a desktop on each > monitor, or span a single contiguous desktop across them? If yes then I'd > guess that what you're asking is at least theoretically possible, though > I've never tested personally. > > On Wed, Jan 18, 2017 at 12:19 PM, Jayme Howard <g.pr...@gmail.com> wrote: > >> I've used both together, but I don't remember if one was mirroring the >> other or if I did it as dual-monitor. It was a configuration I abandoned >> early on. It DID work, but it caused (about 75% of the time) Nvidia code >> 43 issues for me. But it definitely did work outside of that. >> >> On Wed, Jan 18, 2017 at 1:08 PM, Doug Applegate <doug.appleg...@gmail.com >> > wrote: >> >>> Is it possible for a guest VM to use both spice server graphics with >>> qxl video AND hdmi gpu passthrough? Could the guest be configured >>> (windows 10 in this case) see it as a dual-monitor setup? >>> >>> Has anyone tried this or gotten it to work? >>> >>> _______________________________________________ >>> vfio-users mailing list >>> vfio-users@redhat.com >>> https://www.redhat.com/mailman/listinfo/vfio-users >>> >> >> >> _______________________________________________ >> vfio-users mailing list >> vfio-users@redhat.com >> https://www.redhat.com/mailman/listinfo/vfio-users >> >> >
_______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
