[rescue] 670MP windfall in the surplus diving frenzy today.....

Joshua D. Boyd rescue at sunhelp.org
Wed Jun 20 22:47:54 CDT 2001

I'd like to point out that XFree can do it the classic way, ans also the
windows way.  You use xinerama for the new way.  I'm told that xinerama
also works with the Sun X server (the one with modern solaris, not
whatever one the old NetBSD machines use).

Joshua Boyd

On Wed, 20 Jun 2001, Dave McGuire wrote:

> On June 20, Joshua D. Boyd wrote:
> > Now does this work in the traditional way where programs are confined to
> > one display or the other, or is it the more modern Mac, Windows, Xinerama
> > way?
>   The former...and I doubt that will change anytime soon, at least not
> without an X protocol extension.
> The heads in X are called "hostname:display.screen"...if you have a
> SPARC machine with two CG6s running X, they'll be called
> "hostname:0.0" (or simply ":0.0") and "hostname:0.1", in which the
> last digit is the "screen" number.  X clients connect to TCP port
> 6000+screen_number to come up on either screen.  That means that, to
> move an X client's window(s) from one screen to the other would
> require moving an active TCP connection from one port to another...not
> something that's easy or practical to do.
>   It seems theoretically possible to write an X protocol extension to
> support this, though.  There'd have to be a message sent from the
> server to the client requesting a "screen" change, after which the
> client would drop the connection and reestablish it on the other
> screen's port.  Some provision would have to be made for maintaining
> the client's current state, perhaps through maintaining the X client
> id across the two connections.
>           -Dave McGuire
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