On Maw, 2005-08-23 at 14:48 -0700, Keith Packard wrote:
> I'm starting to look at multi-user environments where each user has an X
> server which isn't in control of the whole screen, but rather just
> paints X windows into off-screen memory where an external trusted
> application can take those applications and merge their contents to the
> final screen.

That should be less of a problem as you are then dealing with large
chunks of memory for the mmap() calls and can just map the chunks you
need into each process. DRM might have a role in arbitrating those if
the off screen memory in question is on the video card.



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