Bug 846635 - rgba subpixel font setting is ignored
rgba subpixel font setting is ignored
Product: Fedora
Classification: Fedora
Component: gtk3 (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Matthias Clasen
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-08-08 06:07 EDT by Tim Cuthbertson
Modified: 2013-07-11 04:57 EDT (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 699628
Last Closed: 2013-07-03 21:18:01 EDT
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Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description Tim Cuthbertson 2012-08-08 06:07:35 EDT
+++ This bug was initially created as a clone of Bug #699628 +++

Description of problem:

I *believe* I have enabled rgb subpixel antialiasing. I have the following ~/.fonts.conf:

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<!-- see:
	<match target="font">
		<edit name="antialias" mode="assign">
		<edit name="hinting" mode="assign">
		<edit name="autohint" mode="assign">
		<edit name="hintstyle" mode="assign">
		<edit name="rgba" mode="assign">
		<edit mode="assign" name="lcdfilter">

And the output of:
$ xrdb -q
Xft.antialias:	1
Xft.dpi:	96
Xft.hinting:	0
Xft.hintstyle:	hintfull
Xft.rgba:	rgb

Definitely shows that rgb subpixel rendering is set. 

Version-Release number of selected component (if applicable):
gnome 3; fc17

How reproducible:

Steps to Reproduce:
1. save above ~/.fonts.conf
2. log out & in
Actual results:
None of my fonts are being rendered with subpixel rendering. On magnification, all black text on white background is shades of grey - so it's antialised, but not subpixel.

Expected results:
I would expect to see slightly coloured fringes to the left/right of glyphs.
Comment 1 Baif 2012-10-24 09:33:41 EDT
Same issue found.

$ cat /etc/redhat-release 
Fedora release 18 (Spherical Cow)

$ rpm -qa | grep -i -e gtk -e fontconfig
Comment 2 Baif 2012-10-27 20:48:44 EDT
is there any update?

Here is the output of settings:
gconftool-2 -a /desktop/gnome/font_rendering

$ gconftool-2 -a /desktop/gnome/font_rendering
 antialiasing = rgba
 dpi = 96
 rgba_order = rgb
 hinting = full
Comment 3 Baif 2012-12-03 04:23:56 EST
PS: Running KDE...
Comment 4 Baif 2012-12-12 08:52:44 EST
Dear all I just find out 

This is how fedora works, like the mp3 decoder issue few years ago according the resolution I just make - freetype-freeworld.
Comment 5 Fedora End Of Life 2013-07-03 20:29:28 EDT
This message is a reminder that Fedora 17 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '17'.

Package Maintainer: If you wish for this bug to remain open because you
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Although we aim to fix as many bugs as possible during every release's 
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Comment 6 Tim Cuthbertson 2013-07-03 21:18:01 EDT
Baif is right - installing freetype-freeworld fixes this issue.

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