ibekhaus@athena.mit.edu (Ira B. Ekhaus) (04/08/91)
hello, I am currently using a V32.2 modem (with a 386sx clone) to dial into a telnet server (cisco systems). I connect to a Sun, and do most of my work under emacs. You would think that all this whiz bang hardware would provide a pretty good response time, but I KNOW I'm doing something wrong. symptom: Several commands in Emacs (I-search, Ctrl-v ) force the terminal to redisplay the WHOLE !@#$ screen for every single row shift of Emacs. I'm using a 50 x 132 screen , and to watch it redisplay this many characters in such an incremental manner is incredibly frustrating. The same situation occurs when I cat a large file at a standard Unix prompt. the suspects: I don't think any link in this communication chain is above suspicion. I'll state what I THINK, and welcome corrections to any small errors, but I'm especially interested in being told HOW to do it, instead of the 100's of ways NOT to do it!!!! WINQVT : When it redisplays a screen downshifted by a single row, it seems to redisplay all the characters independent of baud speed and font selection. Is there a Windows user interface specification (ie scroll back feature) that forces this behavior - it is not much use to a vt220 enthusiast. modem: I'm using a standard modem cable with all pins going through both sides. modem init string: ATQ0E0V0X4&C1&D2M3^M WINQVT flow ctrl: I've tried both hardware and software , doesn't change anything except tripping up some Emacs commands. telnet server : This box uses the modem dialing in to sense baud rate, the only parameters I've twiddled with are flow control, terminal length and terminal width, nothing matters sun machine/unix: I think the only the to play with here is the termcaps file, I've never successfully compiled a termcap file that works with WINQVT 50 x 132. A previous net question on this subject yield the suggestion of using the command: stty rows 50 columns 132. It 'works', but I'm very suspicious that Emacs could use more details of the terminal than i provide. Emacs: There seems to be all sorts of customizations for how many lines to jump when repositioning the screen, but I haven't found a command that affects the behavior I've seen when doing an incremental search. SUMMARY: So, what is it? my modem,modem cable, windows, WINQVT terminal emulation, telnet server, Termcap file ,Emacs defaults or Colonel Pickle in the kitchen with an Ax!!!!. I'm open to suggestions. thanks, ira ekhaus ibekhaus@athena.mit.edu