Path: utzoo!attcan!uunet!husc6!bloom-beacon!EXPO.LCS.MIT.EDU!jim
From: jim@EXPO.LCS.MIT.EDU (Jim Fulton)
Newsgroups: comp.windows.x
Subject: Re: X vs. Xsun?
Message-ID: <8811171750.AA24499@EXPO.LCS.MIT.EDU>
Date: 17 Nov 88 17:50:30 GMT
References: <25881@teknowledge-vaxc.ARPA>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: X Consortium, MIT Laboratory for Computer Science
Lines: 24


> What are the differences between the X server named "X" and Xsun?

On a Sun, nothing.

The build gives separate names to each server binary (e.g. Xsun, Xqvss, Xhp,
etc.) so that you can compile any number of servers (for different graphics
devices or for building test servers like Xndx) at a time.  If you use the
xinit program to start your server, you need to either tell it the name of the
server program explicitly (e.g. xinit -- /usr/bin/X11/Xsun :0) or create a link
(or script) named "X" somewhere in your path pointing to the right server.  


> We have an application that works fine when we start X up with a simple
> "xinit", but exhibits poor behavior when started with "xinit -- XSun ..." 
> (when popup menus are dismissed, the underlying region isn't refreshed, 
> etc.).  I'm told it has something to do with "X" being a "backing server"(?). 

It sounds like somebody left an old server lying around.  The Release 3 server
automatically supports backing store unless the server is started with the -bs
option. 

							Jim Fulton
							MIT X Consortium