🚀 go-pugleaf

In <12J+85D@cs.widener.edu> poulson@cs.widener.edu (Joshua Poulson) writes:

>I'm looking for a solution to a wierd problem I'm having.  (I have a
>call in with CDC Support on this). 

>Whenever a user with a WYSE 50 terminal logs into our Cyber (running
>L750AB NOS/VE) at the end of the user prolog a set of strange and
>unusual characters are sent to the terminal.  On normal terminals, for
>example PC_Connect_20's, these characters are not seen and probably set
>up some features on the terminal.  On WYSE 50's this causes the terminal
>to have a soft lockup.  (It can be removed by resetting the terminal
>without losing the connection).

>It's annoying.

>I checked through $SYSTEM.PROLOGS_AND_EPILOGS.SYSTEM_PROLOG as well as
>the users' prologs and could find no source for these characters.  I'd
>love to disable them.

>Has anyone else maneuvered around this problem or have any pointers for

My guess is that this sequence of junk characters is due to an
enable_command_redo in the prolog file. Redo activates at the
very end of the prolog and sends the redo_screen_mode and
redo_line_mode sequences from the TDU to initialize the terminal
in case it has downline loaded function keys or a keypad that must
be activated. Check the TDU that you are using to see what sequences
are specified to be sent. They must not be right for the Wyse 50.
You can remove the enable_command_redo from the prolog to verify that
this is the problem.
--
Richard R. Ragan   rrr@svl.cdc.com    (408) 496-4340 
Control Data Corporation - Silicon Valley Operations
5101 Patrick Henry Drive, Santa Clara, CA 95054-1111