Bug#513121: ttf-arphic-uming: seems to disable anti-aliasing in QT4 applications

[Mark Longair]

Package: ttf-arphic-uming
Version: 0.2.20080216.1-1
Severity: normal

If this package is installed then anti-aliasing is disabled in
QT4 applications. For example, if I run qtconfig-qt4, the
text in that application is blocky. If I close it, purge
ttf-arphic-uming and then run qtconfig-qt4 again, the text
is nicely anti-aliased.

This has been reported on other distributions, such as:

https://bugzilla.redhat.com/show_bug.cgi?id=459680

Many thanks for looking into this issue.

regards,
mark

-- System Information:
Debian Release: 5.0
APT prefers testing
APT policy: (900, 'testing'), (800, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.24-1-686 (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_GB.UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages ttf-arphic-uming depends on:
ii debconf [debconf-2.0] 1.5.24 Debian configuration management sy
ii defoma 0.11.10-0.2 Debian Font Manager -- automatic f
ii dpkg 1.14.24 Debian package management system

Versions of packages ttf-arphic-uming recommends:
ii fontconfig 2.6.0-3 generic font configuration library
ii x-ttcidfont-conf 31 TrueType and CID fonts configurati

ttf-arphic-uming suggests no packages.

-- no debconf information

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[Arne Goetje]

Mark Longair wrote:
>
> If this package is installed then anti-aliasing is disabled in
> QT4 applications. For example, if I run qtconfig-qt4, the
> text in that application is blocky. If I close it, purge
> ttf-arphic-uming and then run qtconfig-qt4 again, the text
> is nicely anti-aliased.
>
> This has been reported on other distributions, such as:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=459680
>
> Many thanks for looking into this issue.

Not a bug in this package.
The default fontconfig configuration on debian does not define if
anti-aliasing should be used by default or not. If you want your fonts
to be anti-aliased system wide, create a file
/etc/fonts/conf.avail/10-antialias.conf with the following contents:

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
<!-- Use anti-aliasing -->
<match target="font">
<edit name="antialias" mode="assign"><bool>true</bool></edit>
</match>
</fontconfig>

Then link it to /etc/fonts/conf.d/ and everything is fine.

Cheers
Arne