Detecting screen disconnection
Alan Coopersmith
Alan.Coopersmith at Sun.COM
Mon Nov 1 11:02:53 PST 2004
Owen Taylor wrote:
> The non-Xinerama case is harder. The way I'd imagine it working is that
> the server always advertises the maximum number of screens; screens
> that aren't present act as /dev/null. There is some sort of way for
> clients to figure out:
>
> - What screens are actually present
> - When the set of actually present screens change
The 'dummy' driver (basically an loadable version of Xvfb) could be used
for screens not currently active. I know Stuart Kreitman has been working
with the GNOME accessibility people to provide a way for them to determine
when a screen is virtual vs. physical, but I think they still assume a given
screen will be one or the other for the life of the server and not change
mid-stream.
(Our Sun Ray users would probably like to see this solved - right now it gets
messy when you hotdesk between Sun Ray stations with different numbers of
monitors.)
--
-Alan Coopersmith- alan.coopersmith at sun.com
Sun Microsystems, Inc. - X Window System Engineering
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