Re: [0.99-15] Some problems and questions

[Paul <p.boekholt@xxxxxxxxx>]

On Fri, Oct 11, 2002 at 10:12:04AM +0200, Martin Klaiber wrote:
> (b) The following problem is a bit difficult to explain. I'm not even
>     sure that it is not meant to be a feature. If I scroll down the
>     screen line-by-line, suddenly the content of the screen is moved
>     up by a whole page and the cursor position jumps to the top of the
>     screen moving down then line-by-line.

I use Debian 3.0 too and see the same behavior when scrolling through a
large file. I believe it's to do with the variable TERM_CANNOT_SCROLL.

DESCRIPTION
   If this variable is set to 0, the hardware scrolling capability of
   the terminal will not be used.  This also means that the window will
   be recentered if the cursor moves outside the top or bottom rows of
   the window.

In linux.sl, this is set to -1 but linux.sl is not loaded by default so it's
0. On my previous PC, a 486-66, I noticed scrolling in the console takes a
lot of CPU time if I leave it to 0. Setting it to -1 doesn't seem to stop
the recentering, but setting it to 1 will cause it to jump much more. What do
-1 and 1 mean? 

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