GNU bug report logs -
#28342
26.0.50; (OSX) Jumpy Scrolling using Trackpad
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Reported by: James Nguyen <james <at> jojojames.com>
Date: Mon, 4 Sep 2017 00:23:02 UTC
Severity: normal
Found in version 26.0.50
Done: Eli Zaretskii <eliz <at> gnu.org>
Bug is archived. No further changes may be made.
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> From: Alan Third <athird <at> googlemail.com>
> Date: Wed, 6 Sep 2017 09:53:54 +0100
> Cc: 28342 <at> debbugs.gnu.org, "Charles A. Roelli" <charles <at> aurox.ch>,
> James Nguyen <james <at> jojojames.com>
>
> I can replicate on ms windows using just:
>
> (setq scroll-margin 5)
> (setq scroll-preserve-screen-position 1)
> (setq mouse-wheel-scroll-amount '(1))
>
> Open a large file. Make sure you're at the start of the file
>
> M-<
>
> Scroll down with the mouse wheel and within a few clicks point jumps to the middle of the screen. A few more
> and it jumps to the end of the file.
Even simpler: after evaluating the first 2 of the above 3 settings,
visit xdisp.c, then type this twice:
C-u 1 C-v
After you type this the second time, Emacs will infloop.
This bug is already present in Emacs 25.1.
I will look into this when I have time. Thanks for the recipe.
This bug report was last modified 7 years and 286 days ago.
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