* scroll-conservatively but still cursor *sometimes* still jumps off bottom
@ 2009-12-12 5:28 Chris Seberino
2009-12-12 16:08 ` Juanma Barranquero
[not found] ` <mailman.12851.1260634113.2239.help-gnu-emacs@gnu.org>
0 siblings, 2 replies; 4+ messages in thread
From: Chris Seberino @ 2009-12-12 5:28 UTC (permalink / raw)
To: help-gnu-emacs
I want up and down arrow keys to advance by 1 line so I added this
to .emacs...
(setq scroll-conservatively most-positive-fixnum)
I noticed that when moving down through big files, *sometimes* the
cursor will jump from bottom of screen to middle.
Any idea why this would happen only some of the time?
cs
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: scroll-conservatively but still cursor *sometimes* still jumps off bottom
2009-12-12 5:28 scroll-conservatively but still cursor *sometimes* still jumps off bottom Chris Seberino
@ 2009-12-12 16:08 ` Juanma Barranquero
[not found] ` <mailman.12851.1260634113.2239.help-gnu-emacs@gnu.org>
1 sibling, 0 replies; 4+ messages in thread
From: Juanma Barranquero @ 2009-12-12 16:08 UTC (permalink / raw)
To: Chris Seberino; +Cc: help-gnu-emacs
> I noticed that when moving down through big files, *sometimes* the
> cursor will jump from bottom of screen to middle.
>
> Any idea why this would happen only some of the time?
Because Emacs' redisplay is unable to keep with the scrolling. Before
23.1, with scroll-conservatively set to a large value, Emacs never
jumped; now it tries no to do it, but sometimes it fails. I think the
relevant ChangeLog entry is this one:
2008-10-27 Chong Yidong <cyd@stupidchicken.com>
* xdisp.c (try_scrolling): When computing the distance from the
scroll margin to PT, try moving some distance past the window
bottom before giving up.
Juanma
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: scroll-conservatively but still cursor *sometimes* still jumps off bottom
[not found] ` <mailman.12851.1260634113.2239.help-gnu-emacs@gnu.org>
@ 2009-12-12 16:33 ` Chris Seberino
2009-12-12 17:48 ` Juanma Barranquero
0 siblings, 1 reply; 4+ messages in thread
From: Chris Seberino @ 2009-12-12 16:33 UTC (permalink / raw)
To: help-gnu-emacs
On Dec 12, 10:08 am, Juanma Barranquero <lek...@gmail.com> wrote:
> Because Emacs' redisplay is unable to keep with the scrolling.
Juanma
Thanks! Does the latest version fix this problem? Is there another
fix? Or, do we all just have to wait until it gets fixed in future?
cs
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: scroll-conservatively but still cursor *sometimes* still jumps off bottom
2009-12-12 16:33 ` Chris Seberino
@ 2009-12-12 17:48 ` Juanma Barranquero
0 siblings, 0 replies; 4+ messages in thread
From: Juanma Barranquero @ 2009-12-12 17:48 UTC (permalink / raw)
To: Chris Seberino; +Cc: help-gnu-emacs
> Thanks! Does the latest version fix this problem? Is there another
> fix? Or, do we all just have to wait until it gets fixed in future?
I don't think it is currently considered a bug, but you're free to
report one with M-x report-emacs-bug :-)
Juanma
^ permalink raw reply [flat|nested] 4+ messages in thread
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2009-12-12 5:28 scroll-conservatively but still cursor *sometimes* still jumps off bottom Chris Seberino
2009-12-12 16:08 ` Juanma Barranquero
[not found] ` <mailman.12851.1260634113.2239.help-gnu-emacs@gnu.org>
2009-12-12 16:33 ` Chris Seberino
2009-12-12 17:48 ` Juanma Barranquero
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