Path: utzoo!attcan!uunet!husc6!cmcl2!lanl!unm-la!unmvax!nmtsun!dieter@nmt.edu
From: dieter@nmt.edu (The Demented Teddy Bear)
Newsgroups: comp.emacs
Subject: Re: DecServer 200s and GNU emacs
Keywords: DecServer, Flow control, GNU emacs
Message-ID: <1282@nmtsun.nmt.edu>
Date: 11 Oct 88 14:57:23 GMT
References: <1599@mcgp1.UUCP>
Sender: dieter@nmtsun.nmt.edu
Reply-To: dieter@nmt.edu (The Demented Teddy Bear)
Organization: New Mexico Tech
Lines: 29
In-reply-to: fst@mcgp1.UUCP (Skip Tavakkolian)

In article <1599@mcgp1.UUCP>, fst@mcgp1 (Skip Tavakkolian) writes:
>I seem to have problems disabling xon-xoff flow control on DecServer 200
>for use with emacs.  Even though the port is configured for no flow control,
>I still get random ^S/^Q sequence which seem to be originating from the 
>DecServers.  Does anyone have this problem? can it be fixed?  DecServers
>are hooked to a VAX runing Ultrix 2.2.

Once the flow control gets turned off, it generally stays off.  I'm
more suspicious of whatever terminal you are using.  Going by the hard-
ware you've described, it seems likely that you have a VT-xxx.  These
beasts *like* XON-XOFF flow-control.  Try going into SETUP mode and
setting flow-control to NONE.

Some caveats: On a VT-220, you have to tell it to emulate a VT-100 and
send the VT-100 identifier, otherwise you might get reset to VT-220
mode (VMS will do this, as an example).  Poof!  no more escape key.
Also, at 9600 baud, you will get trash when scrolling via ^N every
once in a while.  ^L will fix, but it is annoying.  I couldn't get a
satisfactory combination of flow-control and usability out of a
VT-220, DecServer 200, uVax II, and VMS.  Maybe your mileage will
vary.  Come to think of it, there might not have been enough wires
to handle true hardware flow control on that line.  Try it and see.

Dieter
-- 
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