From: "Károly Lőrentey" <lorentey@elte.hu>
Subject: More clues on the redisplay bug (Re: Emacs appears to hang)
Date: Wed, 24 Jul 2002 12:32:41 +0200 [thread overview]
Message-ID: <lorentey.g.e.devel.878z41za9i.elte@decitis01.cern.ch> (raw)
In-Reply-To: <20020719145056.54ED.LEKTU@terra.es> (Juanma Barranquero's message of "Fri, 19 Jul 2002 14:51:55 +0200")
Juanma Barranquero <lektu@terra.es> writes:
> On Fri, 19 Jul 2002 12:01:45 +0000 (UTC), "Robert J. Chassell" <bob@rattlesnake.com> wrote:
>
>> Another data point: no appearance of the bug without ruler-mode:
>
> Er... yes. That's why included M-x ruler-mode in the problem description.
> What I've reported is the simplest way of triggering it that I know.
The bug is not specific to ruler-mode, but I think it's a general
problem that may be related to header lines. I noticed something
similar in Info:
emacs -q --no-site-file
C-h i
C-v C-v
M-v M-v
<Horribly borken display with concatenated lines.>
This is what I see:
http://caesar.elte.hu/~lorentey/emacs-redisplay-bug.jpg
If I disable the fancy header line, the bug disappears:
emacs -q --no-site-file --eval '(setq Info-use-header-line nil)'
C-h i
C-v C-v
M-v M-v
<Normal behaviour.>
All this with today's CVS Emacs, under X.
A few experiments with my previous builds indicate that the bug may be
related to this change:
2002-07-07 Richard M. Stallman <rms@gnu.org>
* xdisp.c (make_cursor_line_fully_visible): Don't try short scrolls.
Instead just return 0 when there is something to be done.
(try_scrolling): If make_cursor_line_fully_visible returns 0,
retry scrolling as if cursor were off the bottom.
(try_cursor_movement): If make_cursor_line_fully_visible returns 0,
return CURSOR_MOVEMENT_MUST_SCROLL.
(redisplay_window): If make_cursor_line_fully_visible returns 0,
go to try_to_scroll.
--
Lőrentey Károly
next prev parent reply other threads:[~2002-07-24 10:32 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-17 16:47 Emacs appears to hang Robert J. Chassell
2002-07-17 17:02 ` Juanma Barranquero
2002-07-17 22:37 ` Kim F. Storm
2002-07-17 23:40 ` [PATCH] " Kim F. Storm
2002-07-18 6:52 ` Juanma Barranquero
2002-07-18 15:56 ` Robert J. Chassell
2002-07-18 16:12 ` Juanma Barranquero
2002-07-18 16:43 ` Robert J. Chassell
2002-07-19 7:28 ` Juanma Barranquero
2002-07-19 11:45 ` Robert J. Chassell
2002-07-19 11:55 ` Redisplay bug (was Re: Emacs appears to hang) Juanma Barranquero
2002-07-19 12:01 ` Emacs appears to hang Robert J. Chassell
2002-07-19 12:51 ` Juanma Barranquero
2002-07-24 10:32 ` Károly Lőrentey [this message]
2002-07-24 12:00 ` More clues on the redisplay bug (Re: Emacs appears to hang) Juanma Barranquero
2002-07-20 22:08 ` [PATCH] Re: Emacs appears to hang Richard Stallman
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