From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#26333: 26.0.50; Hang when displaying some special characters for the first time Date: Sun, 02 Apr 2017 19:35:37 +0300 Message-ID: <83zifypy1y.fsf@gnu.org> References: <87pogwrl30.fsf@bistromath> <83lgrj5039.fsf@gnu.org> <87fuhriy91.fsf@bistromath> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1491150969 973 195.159.176.226 (2 Apr 2017 16:36:09 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 2 Apr 2017 16:36:09 +0000 (UTC) Cc: 26333@debbugs.gnu.org To: Steven Allen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Apr 02 18:36:05 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cuiU1-0008Cp-07 for geb-bug-gnu-emacs@m.gmane.org; Sun, 02 Apr 2017 18:36:05 +0200 Original-Received: from localhost ([::1]:55685 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cuiU7-0001rQ-3W for geb-bug-gnu-emacs@m.gmane.org; Sun, 02 Apr 2017 12:36:11 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40431) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cuiU1-0001rL-Qh for bug-gnu-emacs@gnu.org; Sun, 02 Apr 2017 12:36:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cuiTy-00026u-Mc for bug-gnu-emacs@gnu.org; Sun, 02 Apr 2017 12:36:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:59489) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cuiTy-00026e-JP for bug-gnu-emacs@gnu.org; Sun, 02 Apr 2017 12:36:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cuiTy-0008OB-EZ for bug-gnu-emacs@gnu.org; Sun, 02 Apr 2017 12:36:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 02 Apr 2017 16:36:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 26333 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 26333-submit@debbugs.gnu.org id=B26333.149115094932226 (code B ref 26333); Sun, 02 Apr 2017 16:36:02 +0000 Original-Received: (at 26333) by debbugs.gnu.org; 2 Apr 2017 16:35:49 +0000 Original-Received: from localhost ([127.0.0.1]:57688 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cuiTk-0008Ng-ET for submit@debbugs.gnu.org; Sun, 02 Apr 2017 12:35:49 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:49209) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cuiTi-0008NS-S4 for 26333@debbugs.gnu.org; Sun, 02 Apr 2017 12:35:47 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cuiTa-0001sy-G0 for 26333@debbugs.gnu.org; Sun, 02 Apr 2017 12:35:41 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:59827) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cuiTa-0001st-E2; Sun, 02 Apr 2017 12:35:38 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1593 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1cuiTY-0002am-1Z; Sun, 02 Apr 2017 12:35:38 -0400 In-reply-to: <87fuhriy91.fsf@bistromath> (message from Steven Allen on Sat, 01 Apr 2017 15:00:58 -0700) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:131222 Archived-At: > From: Steven Allen > Cc: 26333@debbugs.gnu.org > Date: Sat, 01 Apr 2017 15:00:58 -0700 > > > So, I could have sworn I tested this with emacs -Q when I first found > the bug (I've been sitting on it for a while) but I guess I didn't. I > apologize. > > It only reproduces for certain fonts. > > Known Bad: Source Code Pro, Office Code Pro, Fira Mono > Known Good: Symbola, DejaVu Sans Mono (the default on my system) > > So, to reproduce, evaluate the following before pasting the special > character. > > (set-face-attribute 'default nil :font "Source Code Pro-10") Is this the only thing one has to do, in "emacs -Q", in order to reproduce the problem with these fonts? Or do you have other font-related customizations on your init files? > Eli Zaretskii writes: > > That's normal: > > Hardly. 15 seconds is a *long* time for a computer and every other > application displays the character in question instantly. Not even > regenerating my entire font cache (fc-cache) takes that long. I meant "normal" as in "Emacs is known to do that sometimes when searching for a font". I'm not sure comparison with other applications is valid, as Emacs attempts to solve a more complex problem, and its font-searching algorithms are biased in favor of finding fonts which support scripts and languages, not symbols. As for comparison with fc-cache, Emacs many times examines each font several times with different options, so it could be slower. > > If you install the Symbola font, I think the search will > > be much faster. > > I do have Symbola installed and the character does display correctly > eventually. Is it eventually displayed using Symbola or some other font?