home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: gnu.emacs.help
- Path: sparky!uunet!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!ira.uka.de!news.belwue.de!news.uni-stuttgart.de!itap.physik.uni-stuttgart.de!stef
- From: stef@itap.physik.uni-stuttgart.de (Stefan Ried)
- Subject: Emacs,DEC5000,Terminals
- Message-ID: <1992Dec28.170505.624@news.uni-stuttgart.de>
- Keywords: VT100,DEC5000,EMACS,Terminal
- Sender: news@news.uni-stuttgart.de (USENET News System)
- Reply-To: stef@itap.physik.uni-stuttgart.de (Stefan Ried)
- Organization: ITAP University of Stuttgart
- Date: Mon, 28 Dec 1992 17:05:05 GMT
- Lines: 64
-
-
- Flow-Problems with Terminals
- ----------------------------
-
-
- Hallo everybody,
-
- Does anybody use EMACS with Terminals like DEC VT220 or
- TransTec-Terminals emulating VT100, VT200 or VT220 ?
-
- Configuration :
-
- DEC 5000/120, Ultrix V4.2A (Rev. 47), Terminals DEC VT220
- and TransTec GDT6225 with 9600 baud
-
- EMACS 18.58.2.
-
-
- Problem :
-
- The best way to run EMACS from Terminals is to configure
- the Terminals to hardware-handshake. Then one can use
- the CTRL+S key to I-SEARCH. This does not work on this DECstation
- in principle. It seems to be a hardware or a Ultrix problem.
-
- So we tried the software handshake XON,XOFF. The Terminal works
- correctly with normal displaytask like "more .." and the VI editor.
-
- To run EMACS we said in the "~/.emacs" file :
-
- (global-unset-key "\C-S")
- (global-unset-key "\C-Q")
- (setq search-exit-option nil)
-
- Now EMACS should understand XON and XOFF as XON and XOFF.
- (to use I-SEARCH we must bring it to another key)
-
- If you start EMACS with a file with only an few lines everything
- is ok !
- If the file have eg. 100 Lines EMACS comes up with a correct
- first display, but if the cursor is moved down the display is not
- scrolled correctly.
- The Terminal has about 250 bytes of buffer. Only the first half screen
- is restaurated correctly and then a XOFF-XON sequence might happen and
- the hole second part of the transmission, about 200 bytes, is lost.
-
- Why does the standard tasks run on this Terminal and only EMACS do have
- such a typical handshake-problem ?
-
- Of cource the files ../emacs/lisp/term/vt200.el and so on are readable
- for the emacs-user and "term" environment is set to vt200.
-
- It really must be a handshake-mistake as Terminals with the same configuration
- but a bigger buffer like PCs or Ataris emulation VT200 work on the same
- tty-line without trouble.
-
-
- Stefan Ried
-
- Institut fuer theoretische und angewandte Physik, Uni Stuttgart, Deutschland
- email: stef@itap.physik.uni-stuttgart.de
-
-
-
-