Suggestions for properly abstracting multiple screens.
JoJo jojo
onetwojojo at gmail.com
Mon Feb 25 21:51:28 PST 2008
Hi Dave
so you are saying
Step 1: Multiseat on discrete GFX
Step 2: Multiseat on dual o/p GFX OR dual o/p IGPs
(and vgaArbitrator in currently at Step1.)
Multiseat is currently supported with multiple gfx,
(each gfx listening on its own PCI,
or dual o/p GFX listening on multiple PCI)
No one is talking about Multiseat with 1 dual o/p GFX,
(much less anyone with dual o/p IGP)
All the multiseat resources (teh intarwebs) talk about multiple GFX
No one is reportedly working on it.
...ergo it does not exist.
of course, I must concede, I cannot correctly predict the
vgaArbitrator relevence,
with all the changes in the X world & the GFX h/w world. I invite you,
to take a shot at that.
(I did watch your ppt on kernel modesetting, mutiseat was not discussed)
we are keenly following your team's 3D work on RS690 as well.
-JoJo
On Tue, Feb 26, 2008 at 10:36 AM, Dave Airlie <airlied at gmail.com> wrote:
> > dude if I could afford to donate 1 board to you,
> > I could probably also afford to put in another gfx card and run 2 x.org.
> >
> > probably AMD could donate one of those (<$70) RS690 boards to your team,
> > (or SUSE could lend you one of their earlier experimental boards)
> >
> > also, you keep writing code for discrete gfx cards, but the
> > technological leaders,
> > are going in for integrated GFX, does that bother you? irrelevance.
> >
> > I can understand, its a very fun project for you guys ;-)
> > Looks like vgaArbitrator will only handle the discrete gfx card scenario.
> > It seems unstated policy for x.org, that multiseat will be supported
> > only on discrete gfx.
>
> Where did you figure that out? I'm interested in the logical
> progression you have made to arrive at this answer...
>
> Part of the plan for kernel modesetting is to enable better single GPU
> multi-seat as well as integrated with the VGA arbiter to enable
> better multi-card multi-seat..
>
> These are two mostly different problem spaces, even though to the
> uneducated it might look like solving the same problem.
>
> Dave.
>
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