From: Tak Kunihiro <tkk@misasa.okayama-u.ac.jp>
To: valentjedi@gmail.com
Cc: tkk@misasa.okayama-u.ac.jp, 29737@debbugs.gnu.org
Subject: bug#29737: 27.0.50; pixel-scroll-mode is laggy
Date: Sun, 24 Dec 2017 11:28:23 +0900 (JST) [thread overview]
Message-ID: <20171224.112823.71840469338618559.tkk@misasa.okayama-u.ac.jp> (raw)
In-Reply-To: <CAO90aWtPHP0U7qrG6yG2B+c-wJM9EEQREurhWQCO7qbLbcfV+w@mail.gmail.com>
> When I slowly start scrolling, it scrolls for a while and then jumps
> about 10 rows at the time, then scrolls a bit more and jumps again
> If I swipe my trackpad too fast, emacs instantly eats 100% CPU and
> hangs infinitely (it hangs not every time, but rather once in a
> while. It can just go to the end of the file).
>
> If I scroll with Ctrl-key as Eli suggested in the first thread mail,
> it scrolls better than before the fix, but I still see this lag
> pattern (scroll a bit and then jump), but in the smaller scale and
> it doesn't kill emacs. Setting mouse-wheel-progressive-speed to nil
> seem to make no difference.
>
> Btw, while I do use macbook, my OS is Arch Linux here. Just tried
> it on mac os. pixel-scroll-mode works much better here though there
> is still small noticeable lag. And also I can see that scroll up
> lagging more than scroll down.
Can you try scrolling with following configuration?
(setq mouse-wheel-scroll-amount '(1 ((shift) . 5) ((control))))
(setq mouse-wheel-progressive-speed nil)
Those are two that are already suggested by Eli. Please try both at
the same time.
next prev parent reply other threads:[~2017-12-24 2:28 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-16 17:55 bug#29737: 27.0.50; pixel-scroll-mode is laggy Valentin Ignatyev
2017-12-16 18:30 ` Eli Zaretskii
[not found] ` <CAO90aWvmqMg=wkt4YyqE8kDP_BNZjAih7AEdyP-Zt74OydpUHA@mail.gmail.com>
2017-12-16 19:33 ` Eli Zaretskii
2017-12-16 19:35 ` Valentin Ignatyev
2017-12-17 2:00 ` Tak Kunihiro
2017-12-22 10:22 ` Eli Zaretskii
2017-12-23 3:18 ` Tak Kunihiro
2017-12-23 9:20 ` Eli Zaretskii
2017-12-23 11:30 ` Valentin Ignatyev
2017-12-23 11:53 ` Valentin Ignatyev
2017-12-24 2:28 ` Tak Kunihiro [this message]
2017-12-24 5:18 ` Valentin Ignatyev
2017-12-25 3:48 ` Tak Kunihiro
2018-01-01 0:58 ` Tak Kunihiro
2018-01-06 17:43 ` Eli Zaretskii
2018-01-07 2:06 ` Tak Kunihiro
2018-01-07 7:19 ` Eli Zaretskii
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