Path: utzoo!attcan!uunet!lll-winken!ames!pasteur!ucbvax!tut.cis.ohio-state.edu!bloom-beacon!TURING.CS.RPI.EDU!hiebeler
From: hiebeler@TURING.CS.RPI.EDU (Dave Hiebeler)
Newsgroups: comp.windows.x
Subject: backing_store
Message-ID: <8904131721.AA20651@turing.cs.rpi.edu>
Date: 13 Apr 89 17:21:35 GMT
References: <8904131129.AA04665@EXPIRE.LCS.MIT.EDU>
Sender: daemon@bloom-beacon.MIT.EDU
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  Remember how I said I swore I had already tried what you said, but
it hadn't worked before?  Well, I was right.  And after some thought
and experimentation, I've found out why it wasn't working before.

  I use 2 suns:
    verdi, a Sun 3/50 running SunOS 3.5 and X11R3
    pawl4, a Sun 3/50 running SunOS 4.0 and X11R3

When I run my program on verdi, using verdi's display, backing_store
does NOT work.
When I run my program on verdi, using pawl4's display, backing_store
DOES work.

  From this, I can only conclude that there is some difference in
the servers between the two suns, since I am running the exact
same program in each case, and actually running it on the same
machine.

  So, do you happen to know of backing_store does not work under 3.5?
Or is there some way of disabling it entirely when compiling the
X server?  Perhaps our sysadmin did that unknowingly.  He said if
that's the case, and I tell him how to fix it, he'll recompile
the X server to enable backing-store for me.

  Again, thanks for your time and any suggestions...
 -Dave

Dave Hiebeler             Internet: hiebeler@cs.rpi.edu  (preferred address)
Computer Science Dept.            hiebeler@itsgw.rpi.edu
Amos Eaton Bldg.            Bitnet: userfrzk@rpitsmts.bitnet
Rensselaer Polytechnic Inst.
Troy, NY 12180-3590