GNU bug report logs - #34710
the mode line flicks on set-window-vscroll

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Package: emacs;

Reported by: Tak Kunihiro <tkk <at> misasa.okayama-u.ac.jp>

Date: Sat, 2 Mar 2019 10:33:02 UTC

Severity: minor

Tags: fixed

Merged with 31904, 32932, 33891, 34127, 36302

Found in versions 26.1.90, 26.1.91, 26.2.90, 27.0.50

Fixed in version 28.1

Done: Alan Third <alan <at> idiocy.org>

Bug is archived. No further changes may be made.

Full log

Message #14 received at 34710 <at> debbugs.gnu.org (full text, mbox):

From: Robert Pluim <rpluim <at> gmail.com>
To: Alan Third <alan <at> idiocy.org>
Cc: Tak Kunihiro <tkk <at> misasa.okayama-u.ac.jp>, 34710 <at> debbugs.gnu.org
Subject: Re: bug#34710: the mode line flicks on set-window-vscroll
Date: Mon, 04 Mar 2019 10:06:20 +0100

Alan Third <alan <at> idiocy.org> writes:

> I believe it’s a problem with running redisplay rapidly (sit-for) and
> the way we’re drawing in NS. We end up with macOS demanding a screen
> update, and Emacs unable to deliver due to there being another
> redisplay coming up.
>
> The patch attached to this discussion doesn’t have the problem:
>
> https://lists.gnu.org/archive/html/emacs-devel/2019-02/msg00354.html
>
> However Robert Pluim reported serious performance problems with it. I
> haven’t been able to replicate them.

I can try it again. Perhaps something in my configuration is causing
this.

Robert
This bug report was last modified 5 years and 93 days ago.

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