From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.bugs Subject: bug#22442: 25.0.50; --with-cairo does not display PNG on GNU/Linux Date: Sat, 23 Jan 2016 00:27:08 -0800 Organization: UCLA Computer Science Department Message-ID: <56A3395C.4040208@cs.ucla.edu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1453537703 975 80.91.229.3 (23 Jan 2016 08:28:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 23 Jan 2016 08:28:23 +0000 (UTC) To: 22442@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Jan 23 09:28:10 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1aMtYH-0007XQ-Qb for geb-bug-gnu-emacs@m.gmane.org; Sat, 23 Jan 2016 09:28:09 +0100 Original-Received: from localhost ([::1]:56567 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMtYH-0001MK-5s for geb-bug-gnu-emacs@m.gmane.org; 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Sat, 23 Jan 2016 00:27:13 -0800 (PST) Original-Received: from [192.168.1.9] (pool-100-32-155-148.lsanca.fios.verizon.net [100.32.155.148]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id B82AC1607DA for ; Sat, 23 Jan 2016 00:27:13 -0800 (PST) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:111876 Archived-At: To reproduce the problem, configure Emacs --with-cairo, and then run these shell commands: wget https://upload.wikimedia.org/wikipedia/commons/f/f5/All_palaeotemps.png emacs -Q All_palaeotemps.png Emacs shows a blank (or sometimes garbled) screen instead of the image. I think the problem is that lookup_rgb_color is returning garbage. Here are more details about the configuration, built on Fedora 23 x86-64: In GNU Emacs 25.0.50.55 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.6, cairo version 1.14.2) of 2016-01-22 built on penguin.cs.ucla.edu Repository revision: 27a0919cde7a6dce93aeba63b5ce7d0834f48531 Configured using: 'configure --enable-gcc-warnings --with-cairo' Configured features: XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 Important settings: value of $LC_ALL: en_US.utf8 value of $LC_COLLATE: en_US.UTF-8 value of $LC_CTYPE: en_US.UTF-8 value of $LC_MESSAGES: en_US.UTF-8 value of $LANG: C locale-coding-system: utf-8-unix