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Re: Bug#119199: emacs21: scroll-conservatively is broken under X


From: Rob Browning
Subject: Re: Bug#119199: emacs21: scroll-conservatively is broken under X
Date: Sun, 18 Nov 2001 16:19:57 -0600
User-agent: Gnus/5.090004 (Oort Gnus v0.04) Emacs/21.1

I can reproduce this problem here as well.

(As usual, if you don't mind, please preserve the Cc to the -forward
 address so we'll know what you decide.)

Thanks

Matthew Woodcraft <address@hidden> writes:

> Package: emacs21
> Version: 21.1-2
> Severity: normal
>
>
>
> -- System Information
> Debian Release: testing/unstable
> Architecture: i386
> Kernel: Linux golux 2.2.18 #1 Wed Jan 3 21:42:52 GMT 2001 i686
> Locale: LANG=C, LC_CTYPE=en_GB
>
> Versions of packages emacs21 depends on:
> ii  dpkg                      1.9.17         Package maintenance system for 
> Deb
> ii  emacsen-common            1.4.13         Common facilities for all 
> emacsen.
> ii  libc6                     2.2.4-3        GNU C Library: Shared libraries 
> an
> ii  libjpeg62                 6b-1.3         The Independent JPEG Group's 
> JPEG 
> ii  liblockfile1              1.03           NFS-safe locking library, 
> includes
> ii  libncurses5               5.2.20010318-3 Shared libraries for terminal 
> hand
> ii  libpng2                   1.0.12-2       PNG library - runtime
> ii  libtiff3g                 3.5.5-6        Tag Image File Format library
> ii  libungif4g                4.1-9          shared library for GIF images 
> (run
> ii  xaw3dg                    1.5-8          Xaw3d widget set
> ii  xlibs                     4.1.0-9        X Window System client libraries
> ii  zlib1g                    1:1.1.3-16     compression library - runtime
>
>
> To reproduce (under X):
>
> emacs -q
>
> visit a file with plenty of lines (for simplicity, one where none of
> them are long enough to wrap)
>
> M-x set-variable scroll-conservatively 3
>
> move the cursor to the last line of the window
>
> M-2 C-n
>
> result: the window is scrolled by several lines, so that the cursor is
> half-way down the window.
>
> expected result: the window is scrolled by two lines, so that the
> cursor remains on the last line.
>
>
> scroll-conservatively works as expected under emacs20, under emacs21 on
> the console, and when scrolling up. It seems to be broken in general
> when scrolling down in X, not just when next-line is used.
>
> -M-
>
>
> (PS, I can't get scroll-{up,down}-aggressively to behave as documented
> either, but these seem at least to be consistent between X and the
> console).


-- 
Rob Browning
rlb @defaultvalue.org, @linuxdevel.com, and @debian.org
Previously @cs.utexas.edu
GPG=1C58 8B2C FB5E 3F64 EA5C  64AE 78FE E5FE F0CB A0AD



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