Hello,

I connect to linux using serial cable from windows machine.
I use putty as serial terminal emulator.

Everything works fine except programs which scroll text - man, more, less, vi, etc.. These programs asumme my terminal size is 80cols x 24rows (my putty window size is more than that, and I resize putty window sometimes)
The cause of this is that putty does not transfer cols rows count correctly:
So programs use default 80x24 because actual col/row settings are zeros.
In contrast if I use the same putty(same settings) but ssh connection - I can clearly see how col/row settings change when I resize my putty window - and col/row numbers are correct. (so maybe not putty's fault?)

Anyway workaroud would be to freeze putty window size and insert stty command into startup scripts which sets correct col/row sizes of current putty window (I will be unable to resize putty window in this case).

Anyone knows the way to configure putty(serial connection) to transfer correct col/rows to linux even when putty window is resized dynamically - like using putty ssh?

thnaks
Vilius

How about using a different terminal emulator? I've always found Kermit to have excellent emulation characteristics, although I haven't used it under Windows since Win95/98.
--- rod.

Well looks like all of them behave the same way - tried tera term, kermit..
I want to ask simpler question -

Is there a way to set linux stty rows and columns settings using terminal emulator settings, before serial connection is made ?
(I'm only asking this because ssh client terminals(the same putty) handles rows and columns right)

thanks
V

I don't think serial terminals can communicate rows/columns sizes 'on-the-fly'. Remember that they are emulating hardware terminals, where the terminal characteristics are fixed. As such, the row/colum sizes are derived/inferred from the value of $TERM.
Are you connecting to a getty-ish process (ie. logging in) or simply connecting to an existing process that is driving the serial port? My belief is that getty sets the value of rows & cols from either the $TERM variable or from an argument provided by init. Thereafter, you can only change this by using stty or equivalent.
--- rod.