Re: The unwarranted scrolling assumption

[Eli Zaretskii]

> Date: Sat, 19 Jun 2010 14:36:17 +0300
> From: Eli Zaretskii <address@hidden>
> Cc: address@hidden
> 
> > OK.  I installed a change along these lines (revno 100619).  It
> > actually goes a tad farther, in that it computes the limit for
> > searching for point from the values of scroll-conservatively and
> > scroll-step, even when scroll-conservatively is less than
> > most-positive-fixnum, instead of using an arbitrary limit of 10 screen
> > lines.
> 
> With this change, there are still situations where Emacs occasionally
> recenters.  Disabling font-lock-mode does not help.
> 
> I've found a file with which I can reproduce this reliably by just
> leaning on the <down> arrow.  I'm working on trying to find out why
> this happens.

Update: with revno 100620, I can no longer get Emacs to recenter by
pressing and holding the <down> arrow key, unless bidi-display-reordering
is non-nil.  The latter is probably due to some bug in cursor positioning
in set_cursor_from_row and display_line, under bidirectional display; I
will look into that next.

So please try the latest trunk and see if Emacs still recenters sometimes.