Bug#502481: libgtk2.0-0: ignores fontconfig subpixel rendering setting on LCD screen

[hhaamu at gmail.com]

Package: libgtk2.0-0
Version: 2.12.11-3
Severity: important

*** Please type your report below this line ***

I prefer my apps to have antialiased fonts but not have subpixel
rendering.

GTK+ ignores any subpixel rendering settings I have set up in fontconfig.
It always turns it on to RGB when run on an LCD screen. The only workaround
I have found is turning antialiasing off, which leaves me with ugly fonts.

Everything works as configured in QT apps. I am not running GNOME or anything
that might affect the configuration.


My fontconfig config:
* fontconfig/subpixel_rendering: Never
* fontconfig/enable_bitmaps: false
* fontconfig/hinting_type: Autohinter

/etc/fonts/local.conf:
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
	<match target="font">
		<edit mode="assign" name="hintstyle">
			<const>hintslight</const>
		</edit>
		<edit name="rgba" mode="assign"><const>none</const></edit>
		<edit mode="assign" name="antialias">
			<bool>true</bool>
		</edit>
	</match>
</fontconfig>

~/.fonts.conf exists, but only defines preferred fonts.

A couple of screenshots:
http://www.saunalahti.fi/atmtjt/fonts-gtk-vs-qt.png
http://www.saunalahti.fi/atmtjt/fonts-gtk-vs-qt-zoom.png (381K)

The LCD I'm having trouble with is my laptop's internal display. I did
not test with a second (external) LCD.

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (700, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.24.5 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=fi_FI.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libgtk2.0-0 depends on:
ii  libatk1.0-0           1.22.0-1           The ATK accessibility toolkit
ii  libc6                 2.7-14             GNU C Library: Shared libraries
ii  libcairo2             1.6.4-6            The Cairo 2D vector graphics libra
ii  libcomerr2            1.41.2-1           common error description library
ii  libcups2              1.3.8-1lenny1      Common UNIX Printing System(tm) - 
ii  libfontconfig1        2.6.0-1            generic font configuration library
ii  libglib2.0-0          2.16.6-1           The GLib library of C routines
ii  libgnutls26           2.4.1-1            the GNU TLS library - runtime libr
ii  libgtk2.0-common      2.12.11-3          Common files for the GTK+ graphica
ii  libjpeg62             6b-14              The Independent JPEG Group's JPEG 
ii  libkrb53              1.6.dfsg.4~beta1-4 MIT Kerberos runtime libraries
ii  libpango1.0-0         1.20.5-2           Layout and rendering of internatio
ii  libpng12-0            1.2.27-2           PNG library - runtime
ii  libtiff4              3.8.2-11           Tag Image File Format (TIFF) libra
ii  libx11-6              2:1.1.5-2          X11 client-side library
ii  libxcomposite1        1:0.4.0-3          X11 Composite extension library
ii  libxcursor1           1:1.1.9-1          X cursor management library
ii  libxdamage1           1:1.1.1-4          X11 damaged region extension libra
ii  libxext6              2:1.0.4-1          X11 miscellaneous extension librar
ii  libxfixes3            1:4.0.3-2          X11 miscellaneous 'fixes' extensio
ii  libxi6                2:1.1.3-1          X11 Input extension library
ii  libxinerama1          2:1.0.3-2          X11 Xinerama extension library
ii  libxrandr2            2:1.2.3-1          X11 RandR extension library
ii  libxrender1           1:0.9.4-2          X Rendering Extension client libra
ii  zlib1g                1:1.2.3.3.dfsg-12  compression library - runtime

Versions of packages libgtk2.0-0 recommends:
ii  hicolor-icon-theme            0.10-1     default fallback theme for FreeDes
ii  libgtk2.0-bin                 2.12.11-3  The programs for the GTK+ graphica

Versions of packages libgtk2.0-0 suggests:
ii  librsvg2-common               2.22.2-2   SAX-based renderer library for SVG

-- no debconf information