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Re: [Qemu-devel] console muti-head some more design input


From: Gerd Hoffmann
Subject: Re: [Qemu-devel] console muti-head some more design input
Date: Wed, 27 Nov 2013 08:11:10 +0100

  Hi,

> So I think we probably do need treat multi-head windows as separate
> input devices, and/or have
> an agent in the guest to do the right thing by configuring multiple
> input devices to map to multiple outputs.
> 
> I suppose spice must do something like this already, maybe they can
> tell me more.

Spice does it with a guest agent, which basically passes in the display
channel id as extra parameter (for the multihead-with-multiple-qxl cards
case).

Not fully sure how this works with a single qxl card and
scanout-rectangle-per-head, I suspect the pointer location is just
relative to the common surface backing all heads then.

cheers,
  Gerd





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