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ssh to VMS - terminal problems
- To: freebsd-questions_(_at_)_freebsd_(_dot_)_org
- Subject: ssh to VMS - terminal problems
- From: Anton Shterenlikht <mexas_(_at_)_bristol_(_dot_)_ac_(_dot_)_uk>
- Date: Tue, 20 Feb 2007 15:51:57 +0000
- Mail-followup-to: freebsd-questions_(_at_)_freebsd_(_dot_)_org
I connect to a VMS box from my FreeBSD laptop via ssh.
When I run a full screen text editor (EDIT) my terminal screen behaves
unpredictably: cursor jumps from place to place, keystrokes produce
characters in unpredictable places, screen menu flows with the text
rather than stay at the bottom. Hovewer, if I scroll the offending
bit up of down from the screen and back into the screen I can see
my changes. I assume the problem lies in some terminal incompartibility.
My box is
% uname -a
6.2-PRERELEASE FreeBSD #0: Wed Nov 22 09:36:22 GMT 2006
I had exactly the same problem with 6.1.
I use sc driver. In a desperate attempt to resolve the problem I tried
pcvt driver, but that seems to be faulty and no longer supported, freezes
screen and the keyboard. However, I'm not sure if the actual driver
has anything to do with my problem.
At the moment I use
% echo $TERM
but I tried several other terminals I found in /etc/termcap, including
various VT terminals. This is when I tried to use pcvt instead of sc,
because I thought that maybe a VT term requires pcvt driver. Does it
make any sense?
On the other hand I tried to change terminal settings on the VMS box,
which are many. At present these look as follows:
$ show terminal/full
Terminal: _FTA20: Device_Type: VT100 Owner: MEXAS
Input: 9600 LFfill: 0 Width: 80 Parity: None
Output: 9600 CRfill: 0 Page: 24
Interactive Echo Type_ahead No Escape
Hostsync TTsync Lowercase Tab
Wrap Scope No Remote No Eightbit
Broadcast No Readsync No Form Fulldup
No Modem No Local_echo No Autobaud No Hangup
No Brdcstmbx No DMA No Altypeahd Set_speed
No Commsync Line Editing Overstrike editing No Fallback
No Dialup Secure server No Disconnect No Pasthru
No Syspassword No SIXEL Graphics No Soft Characters No Printer Port
Numeric Keypad ANSI_CRT No Regis No Block_mode
Advanced_video No Edit_mode DEC_CRT No DEC_CRT2
No DEC_CRT3 No DEC_CRT4 No DEC_CRT5 No Ansi_Color
VMS Style Input <CTRL-H> Backspace
I cannot remember which settings I tried and which I did not, but the
possible number of combinations is too big to try all.
If I run ssh from a terminal emulator in xorg, all seems fine.
Perhaps somebody can suggest an option to try or perhaps I'm missing
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