GNU bug report logs - #1071
Looping in redisplay due to font problem

Previous Next

Package: emacs;

Reported by: Kenichi Handa <handa <at> m17n.org>

Date: Fri, 3 Oct 2008 01:30:02 UTC

Severity: normal

Merged with 1070, 1076, 1097, 1101, 1105

Done: Chong Yidong <cyd <at> stupidchicken.com>

Bug is archived. No further changes may be made.

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 1071 in the body.
You can then email your comments to 1071 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

View this report as an mbox folder, status mbox, maintainer mbox

Report forwarded to bug-submit-list <at> lists.donarmstrong.com, Emacs Bugs <bug-gnu-emacs <at> gnu.org>:
bug#1071; Package emacs. Full text and rfc822 format available.
Acknowledgement sent to Kenichi Handa <handa <at> m17n.org>:
New bug report received and forwarded. Copy sent to Emacs Bugs <bug-gnu-emacs <at> gnu.org>. Full text and rfc822 format available.

Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Kenichi Handa <handa <at> m17n.org>
To: Chong Yidong <cyd <at> stupidchicken.com>
Cc: emacs-pretest-bug <at> gnu.org
Subject: Re: Looping in redisplay due to font problem
Date: Fri, 03 Oct 2008 10:24:18 +0900

In article <878wt6a7aq.fsf <at> cyd.mit.edu>, Chong Yidong <cyd <at> stupidchicken.com> writes:

> After the 2008-07-09 change to ftfont.c, Emacs can loop during redisplay
> under the following conditions:

> xrdb /dev/null
> emacs -Q fc-list.list   [fc-list.list is attached]
> <PageDown>
> <PageDown>
> <PageDown>
> <PageDown>

> Emacs begins looping while in redisplay, while displaying the text
> "Corsivo" (the final letter "o" blinks rapidly).

> Strangely enough, I can't reproduce this if I substitute C-v for
> PageDown (?!??!).  Also, the bug doesn't show up if there is an X
> resource Emacs.geometry already defined.

> The problem seems to have appeared for the first time during the checkin
> listed below.  My tests indicate that the other files involved this
> checkin do not affect the problem.

> Could you see if you can reproduce this problem, and review the code
> changes to see if they may have caused it?  Thanks!

That's a very strange phenomenon.  But, I can't reproduce
it.  When I hit PageDown four times, the top line is "Luxi
Sans:style=Regular", and "Corsivo" appears on the 9th line
(logically 8th line because of continuation).

In my case, this font is selected for the default case:

-bitstream-Bitstream Vera Sans Mono-normal-normal-normal-*-16-*-*-*-m-0-iso10646-1

Which font is selected in your case?

And, what does "Emacs begins looping while in redisplay"
exactly mean?

---
Kenichi Handa
handa <at> ni.aist.go.jp
Merged 1070 1071. Request was from Glenn Morris <rgm <at> gnu.org> to control <at> emacsbugs.donarmstrong.com. (Fri, 03 Oct 2008 02:35:02 GMT) Full text and rfc822 format available.
Merged 1070 1071 1076. Request was from Glenn Morris <rgm <at> gnu.org> to control <at> emacsbugs.donarmstrong.com. (Fri, 03 Oct 2008 17:05:05 GMT) Full text and rfc822 format available.
Merged 1070 1071 1076 1097. Request was from Glenn Morris <rgm <at> gnu.org> to control <at> emacsbugs.donarmstrong.com. (Mon, 06 Oct 2008 06:15:04 GMT) Full text and rfc822 format available.
Merged 1070 1071 1076 1097 1101. Request was from Glenn Morris <rgm <at> gnu.org> to control <at> emacsbugs.donarmstrong.com. (Mon, 06 Oct 2008 16:55:07 GMT) Full text and rfc822 format available.
Merged 1070 1071 1076 1097 1101 1105. Request was from Glenn Morris <rgm <at> gnu.org> to control <at> emacsbugs.donarmstrong.com. (Tue, 07 Oct 2008 17:35:03 GMT) Full text and rfc822 format available.
bug archived. Request was from Debbugs Internal Request <don <at> donarmstrong.com> to internal_control <at> emacsbugs.donarmstrong.com. (Fri, 07 Nov 2008 15:24:03 GMT) Full text and rfc822 format available.
This bug report was last modified 16 years and 285 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.