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From: nathan@mit-eddie.UUCP
Newsgroups: comp.sources.d,comp.emacs,comp.terminals
Subject: 9600 baud problems (was Re: when using termcap, get it right!)
Message-ID: <6090@eddie.MIT.EDU>
Date: Mon, 15-Jun-87 03:29:02 EDT
Article-I.D.: eddie.6090
Posted: Mon Jun 15 03:29:02 1987
Date-Received: Tue, 16-Jun-87 01:11:32 EDT
References: <1149@carthage.swatsun.UUCP> <8601@tekecs.TEK.COM> <6828@mimsy.UUCP> <1335@super.upenn.edu.upenn.edu> <1166@osiris.UUCP>
Reply-To: nathan@eddie.MIT.EDU (Nathan Glasser)
Organization: MIT, EE/CS Computer Facilities, Cambridge, MA
Lines: 34
Keywords: termcap, curses
Xref: utgpu comp.sources.d:778 comp.emacs:1018 comp.terminals:280

In article <1166@osiris.UUCP> jdia@osiris.UUCP (Josh Diamond) writes:
>Worst problem ever seen:
>  At an unnamed computer center there are several microterm terminals
>(vt100/vt220 compatible), and several DEC-GiGi's.  Obviously everyone
>prefers to use the microterms.  So one day I go there to do some work,
>and I discover that all of the microterms are in use.  So I go to a
>gigi.  I start up emacs, and discover that every time the screen is
>rewritten, emacs decides it wants to search! Why? because the GiGi's are
>so inept that they can't really hand 9600 baud (after all, their
>terminal logic is written in inerpretive basic!!).  So, they tell unix
>to stop sending data so they can catch up, using ^S/^Q.  But emacs
>interprets this as a search. &%$%*^$*&)^^%&-up eh?

I've had very similar problems repeatedly when using an h19 (in
h19 mode). When ever certain screens were displayed, emacs would
begin to start searching for what seemed like random strings of
control characters and beeping repeatedly. I would often have to
hit ^G 4 or 5 times before it would stop. And of course the screen
was not drawn properly, so I have to redraw it...and often the same
thing would happen again.

I had decided that the problem might be that the h19 couldn't really
handle 9600 baud (as described above for the gigi), since it would
explain most of the behavior I experienced, but it seemed a little too
far fetched.  Since I thought h19's are/were fairly widely used, and
regarded along with others like vt100's as a standard terminal type, I
would expect it not to have such problems.

Does anybody know whether this is indeed true of h19's?
-- 
				Nathan Glasser
				nathan@mit-eddie.uucp (usenet)
fnord				nathan@xx.lcs.mit.edu (arpa)
"A tribble is the only love that money can buy."