Re: ssh to VMS - terminal problems
yes - VMS only knows about DEC-compatible terminals. None of the *BSD console emulators do well enough to be usable on VMS. xterm supports ANSI color, VT220 emulation and UTF-8 There's an faq at http://invisible-island.net/xterm/xterm.faq.html ftp://invisible-island.net/xterm/ Which is fine if one doesn't mind having to fire up X. Another possible approach would be to run ports/sysutils/screen, which should provide a decent VT100 over just about anything with a terminfo better than dumb or unknown :) So, what was pcvt driver designed for? I understood from the man pages that it is supposed to be compartible with DEC function keys? Generating the escape sequences for the DEC function keys is one thing. Handling all the escape sequences that VMS throws at it is another. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ssh to VMS - terminal problems
On Thu, Feb 22, 2007 at 01:04:39AM -0800, [EMAIL PROTECTED] wrote: yes - VMS only knows about DEC-compatible terminals. None of the *BSD console emulators do well enough to be usable on VMS. xterm supports ANSI color, VT220 emulation and UTF-8 There's an faq at http://invisible-island.net/xterm/xterm.faq.html ftp://invisible-island.net/xterm/ Which is fine if one doesn't mind having to fire up X. Another possible approach would be to run ports/sysutils/screen, which should provide a decent VT100 over just about anything with a terminfo better than dumb or unknown :) termcap. screen doesn't use the fancier features from terminfo (and will do interesting but unuseful things if it is exposed to them). It's a decent vt100 for the same issues: applications running vi. Read the section on bugs (from its manpage): o Screen has no clue about double-high or double-wide characters. But this is the only area where vttest is allowed to fail. o Screen does not make use of hardware tabs. However, that comment about vttest overlooks some of the keyboard issues (such as repeating keys) that screen has no control over. There are several terminals smarter than dumb/unknown that screen cannot elevate or transform into a vt100... -- Thomas E. Dickey http://invisible-island.net ftp://invisible-island.net pgpjxK4gxyFIF.pgp Description: PGP signature
ssh to VMS - terminal problems
HI 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 root@:/usr/obj/usr/src/sys/SC i386 % 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 cons25 % 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 Terminal Characteristics: InteractiveEcho Type_ahead No Escape Hostsync TTsync Lowercase Tab Wrap Scope No Remote No Eightbit Broadcast No ReadsyncNo FormFulldup No Modem No Local_echo No AutobaudNo Hangup No Brdcstmbx No DMA No Altypeahd Set_speed No CommsyncLine 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_CRTNo DEC_CRT2 No DEC_CRT3No DEC_CRT4No DEC_CRT5No Ansi_Color VMS Style InputCTRL-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 someting alltogeter? thanks anton ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ssh to VMS - terminal problems
On Tue, Feb 20, 2007 at 03:51:57PM +, Anton Shterenlikht wrote: If I run ssh from a terminal emulator in xorg, all seems fine. yes - VMS only knows about DEC-compatible terminals. None of the *BSD console emulators do well enough to be usable on VMS. xterm supports ANSI color, VT220 emulation and UTF-8 There's an faq at http://invisible-island.net/xterm/xterm.faq.html ftp://invisible-island.net/xterm/ -- Thomas E. Dickey http://invisible-island.net ftp://invisible-island.net ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ssh to VMS - terminal problems
On Tue, Feb 20, 2007 at 11:45:17AM -0500, Thomas Dickey wrote: On Tue, Feb 20, 2007 at 03:51:57PM +, Anton Shterenlikht wrote: If I run ssh from a terminal emulator in xorg, all seems fine. yes - VMS only knows about DEC-compatible terminals. None of the *BSD console emulators do well enough to be usable on VMS. xterm supports ANSI color, VT220 emulation and UTF-8 There's an faq at http://invisible-island.net/xterm/xterm.faq.html ftp://invisible-island.net/xterm/ thanks a lot. So, what was pcvt driver designed for? I understood from the man pages that it is supposed to be compartible with DEC function keys? anton ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ssh to VMS - terminal problems
On Tue, Feb 20, 2007 at 07:05:37PM +, Anton Shterenlikht wrote: On Tue, Feb 20, 2007 at 11:45:17AM -0500, Thomas Dickey wrote: On Tue, Feb 20, 2007 at 03:51:57PM +, Anton Shterenlikht wrote: If I run ssh from a terminal emulator in xorg, all seems fine. yes - VMS only knows about DEC-compatible terminals. None of the *BSD console emulators do well enough to be usable on VMS. xterm supports ANSI color, VT220 emulation and UTF-8 There's an faq at http://invisible-island.net/xterm/xterm.faq.html ftp://invisible-island.net/xterm/ thanks a lot. So, what was pcvt driver designed for? I understood from the man pages that it is supposed to be compartible with DEC function keys? Most of these drivers are just good enough to run vi (so they can use a termcap written to accommodate a DEC terminal). VMS wants more than just function keys - the terminal has to respond to control sequences that ask what it is, for instance. I see from the show-terminal that it either guessed that it was a VT100, or that it was told that it was. If you capture the output from the host with 'script', you can see what's sent to the terminal. Seeing the replies is harder, but that might provide some clues. Running vttest would show some of the issues (for a 25-line console screen, that would be something like vttest 25x80.80 to make it workable). That reminds me - Of course VMS thinks you have 24 lines (which makes all of the scrolling not work properly). You can modify that setting (the page in the show term). There are other likely problems... -- Thomas E. Dickey http://invisible-island.net ftp://invisible-island.net ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
