Bug#385448: libpango1.0-0: Firefox fonts became ugly

[SZOKOVACS Robert]

Package: libpango1.0-0
Version: 1.12.3-2
Severity: normal

After a recent update (I don't know exactly when, I don't restart
firefox much) firefox seems to have lost it's ability to correctly
render fonts. I have two monitors, different size, but same resolution.
Firefox looks fine on the smaller one, but on the bigger one the fonts
looks like they're not antialiashed or they're rendered for different dpi.
I file this bug here because running with
MOZ_DISABLE_PANGO=1 firefox
everything goes back to normal, the fonts are OK on both monitors.

-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (400, 'unstable'), (300, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.15-ite
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages libpango1.0-0 depends on:
ii  libc6                  2.3.6.ds1-4       GNU C Library: Shared libraries
ii  libcairo2              1.2.4-1           The Cairo 2D vector graphics libra
ii  libfontconfig1         2.3.1-2           generic font configuration library
ii  libfreetype6           2.2.1-2           FreeType 2 font engine, shared lib
ii  libglib2.0-0           2.10.3-3          The GLib library of C routines
ii  libpango1.0-common     1.12.3-2          Modules and configuration files fo
ii  libx11-6               2:1.0.0-8         X11 client-side library
ii  libxft2                2.1.7-1           FreeType-based font drawing librar
ii  zlib1g                 1:1.2.2-4.sarge.2 compression library - runtime

-- no debconf information