>
> >> And I have a question: how to assure the audio/gfx client find its right peer?
> >> On a x86 platform, there can be an integrated GPU and an discrete GPU. So there can be two audio controllers and two GPUs.
> >> We need to assure audio controller find the proper GPU, and vice versa. Maybe we need the peer audio/gfx to register with a same identifier (something like vendor ID) for peering.
> >
> > Yes, it's an open issue. So far, the binding with vga_switcheroo is
> > done by a rough guess with PCI ID.
>
> Yeah, I guess we need platform/bus specific hints.
http://www.displayport.org/cables/driving-multiple-displays-from-a-single-displayport-output/
How do the audio driver know which displays when a single displayport output can drive multiple displays ?
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