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From: jand@htsa.uucp (Jan Derriks)
Newsgroups: comp.sys.sequent
Subject: Systech MTI-1600 tty problems.
Keywords: sequent systech terminal
Message-ID: <834@htsa.uucp>
Date: 11 Apr 89 12:55:11 GMT
Organization: AHA-TMF (Technical Institute), Amsterdam, Netherlands
Lines: 21

Who can help me with the following problem:

Sometimes, when a terminal is switched off and on ca. 25 
times (in 2 weeks or so) the /dev/ttyxx line 'hangs'. 
Nothing else but a reboot of the system helps.
An echo >/dev/ttyxx appears on the screen, but I cannot
read /dev/ttyxx at all.
Fortunately not all tty lines have this problem.

In the release notes Sequent mentions a hardware bug in the 
Systech MTI terminal multiplexor board but has no intention
to fix it.

Big question is: how can I 'reset' the /dev/tty line like a 
system reboot does, without actually having to do a complete reboot ?
Anybody knows this problem and has an answer: post it or please
send to (uucp)..hp4nl!htsa!jand.  Thanks.

Jan Derriks                   |  AHA-TMF (H.T.S. 'Amsterdam')
email: hp4nl!htsa!jand        |  Europaboulevard 23
phone: +31 20423827           |  1079 PC Amsterdam,  The Netherlands