[comp.terminals] IBM 3151 Terminals...

tts@ttank.ttank.com (Karl Bunch) (12/26/90)

Has anyone had any real success with the IBM 3151 terminals under
SCO Xenix?  We have the 'latest-greatest' version of termcap from SCO.
They seem to feel everything is working fine.  But we have misc. screen
garbage, cursor hops (just seems to move by itself but is very repeatable).

We are using SCO Office Portfolio etc.  I personally use the system from a
shell all the time and the terminals still act unreliable.  As an example
if we 'stty tabs' the terminal flips out.  If you do: 'stty tabs;df -v' the
screen will clear/home and display only some parts of the df.  We are running
the terminals off of a Model 80 with the Digiboard C/X terminal concentrators.

I have experienced these types of problems at another customer site and
always attributed it to not having the terminal reference to tune the
termcap.. Well now I have the 500 page reference and haven't the slightest
idea were to start..

BTW we are trying to run the terminals at 38,400 but I even turned them
down to 300 baud and got the same results.

Thanks in advance,
Karl
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% Karl Bunch                            ||| UUCP: ..!uunet!zardoz!ttank!karl
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silver@xrtll.uucp (Hi Ho Silver) (12/28/90)

In article <1990Dec26.055509.10282@ttank.ttank.com> karl@ttank.ttank.com writes:
$Has anyone had any real success with the IBM 3151 terminals under
$SCO Xenix?  We have the 'latest-greatest' version of termcap from SCO.
$They seem to feel everything is working fine.  But we have misc. screen
$garbage, cursor hops (just seems to move by itself but is very repeatable).

[further description removed]

   It sounds to me like your flow control, if any, isn't working properly
and you're sending data (particularly control codes) faster than the
terminal can handle it.  I've had similar problems with IBM 3164s.  Try
doing tests that send a few escape sequences (the more they do, the better;
clearing the screen and tabbing around might be good choices) and then run
a command that sends several lines of output.  If you start losing bits,
then it probably means that you're sending data before the terminal has
finished processing the control codes.
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tts@ttank.ttank.com (Karl Bunch) (12/29/90)

In <1990Dec27.223700.20857@xrtll.uucp> silver@xrtll.uucp (Hi Ho Silver) writes:
>In article <1990Dec26.055509.10282@ttank.ttank.com> karl@ttank.ttank.com wtote:
>$Has anyone had any real success with the IBM 3151 terminals under
>$SCO Xenix?  We have the 'latest-greatest' version of termcap from SCO.
>$They seem to feel everything is working fine.  But we have misc. screen
>$garbage, cursor hops (just seems to move by itself but is very repeatable).

>[further description removed]

>   It sounds to me like your flow control, if any, isn't working properly..

Yes well I have tried running the terminals at 300 baud.  And It doesn't
seem to make a difference.  If these terminals have flow control problems
at 300 baud then we need a big dumpster.. 

Thanks,
Karl
-- 
% ----------------------------------------------------------------------------
% Karl Bunch                            ||| UUCP: ..!uunet!zardoz!ttank!karl
% Think Tank Software                   ||| INTERNET: karl@ttank.com