GNU bug report logs - #6961
Emacs hangs when scrolling using gnus-summary-next-page on pages with images

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Lars Magne Ingebrigtsen <larsi <at> gnus.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#6961: closed (Emacs hangs when scrolling using
 gnus-summary-next-page on pages with images)
Date: Thu, 30 Sep 2010 21:40:05 +0000

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Your message dated Thu, 30 Sep 2010 23:42:27 +0200
with message-id <m3zkuy29j0.fsf <at> quimbies.gnus.org>
and subject line Re: Emacs hangs when scrolling using gnus-summary-next-page on pages with images
has caused the GNU bug report #6961,
regarding Emacs hangs when scrolling using gnus-summary-next-page on pages with images
to be marked as done.

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From: Antoine Levitt <antoine.levitt <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Emacs hangs when scrolling using gnus-summary-next-page on pages with
	images
Date: Wed, 01 Sep 2010 02:25:16 +0200

Hi,
I'm using gnus with the new gwene service to read RSS, in particular
webcomics. I've had emacs hang in a particularly bad way when scrolling
pages: consuming 100% of CPU and becoming unresponsive.

This bug should be reproducible with any large images. I tested it with
gwene.com.phdcomics and gwene.fr.lemonde.blog.vidberg.

I'm using (not 100% sure which are relevant)
(setq mm-inline-text-html-with-images t)
(setq mm-attachment-override-types '("image/.*"))
(setq w3m-default-display-inline-images t)
(setq w3m-toggle-inline-images-permanently nil)

with latest bzr emacs and CVS emacs-w3m.

Also a bug but far less major, SPC ignores images in the article buffer,
and consequently the scrolling with large images is weird. It's better
(although not perfect) using the standard emacs scrolling commands (C-v
M-v, etc)

Antoine

[Message part 3 (message/rfc822, inline)]

From: Lars Magne Ingebrigtsen <larsi <at> gnus.org>
To: Antoine Levitt <antoine.levitt <at> gmail.com>
Cc: bug-gnu-emacs <at> gnu.org, 6961-close <at> debbugs.gnu.org
Subject: Re: Emacs hangs when scrolling using gnus-summary-next-page on pages
	with images
Date: Thu, 30 Sep 2010 23:42:27 +0200

Antoine Levitt <antoine.levitt <at> gmail.com> writes:

> I'm using gnus with the new gwene service to read RSS, in particular
> webcomics. I've had emacs hang in a particularly bad way when scrolling
> pages: consuming 100% of CPU and becoming unresponsive.
>
> This bug should be reproducible with any large images. I tested it with
> gwene.com.phdcomics and gwene.fr.lemonde.blog.vidberg.
>
> I'm using (not 100% sure which are relevant)
> (setq mm-inline-text-html-with-images t)
> (setq mm-attachment-override-types '("image/.*"))
> (setq w3m-default-display-inline-images t)
> (setq w3m-toggle-inline-images-permanently nil)

In the latest Gnus/Emacs with the new HTML rendering code, this should
no longer be a problem.  And if your Emacs 24 is built with imagemagick
support. images will be scaled down to 90% of the window size, which
fixes some of the scrolling issues.

-- 
(domestic pets only, the antidote for overdose, milk.)
  larsi <at> gnus.org * Lars Magne Ingebrigtsen

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