Package: libfreetype6 Version: 2.6-1 Severity: important [Severity important because this breaks GNOME's primary interface font.]
After upgrading to libfreetype 2.6-1, the Cantarell font shows up as blurry; lines get smeared across pixels. This doesn't happen with every font; for instance, DejaVu Sans seems fine. I've attached a pair of screenshots to demonstrate. cantarell-blurry.png shows the blurry rendering of Cantarell; zoom in on a vertical line such as in the 'n', 't', 'r', or 'f' of "Interface", and notice that the vertical line gets smeared out across multiple pixels. sans.png shows the rendering of DejaVu Sans; notice that the same vertical lines snap to pixel boundaries. Given that 2.6-1 re-enabled CFF, that seems like a likely culprit, unless other significant changes occurred in the same version. Also, given that this has happened multiple times in the past, I wonder if a "font unit test" would help? Take a couple of key fonts, such as the aforementioned DejaVu Sans and Cantarell, render specific letters with the default parameters, and scan across the resulting image at a given y to make sure the rendering doesn't smear across pixels. Such a test would make sure future changes to libfreetype6 don't re-introduce critical font rendering errors. - Josh Triplett -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.1.0-2-amd64 (SMP w/4 CPU cores) Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages libfreetype6 depends on: ii libc6 2.19-19 ii libpng12-0 1.2.50-2+b2 ii zlib1g 1:1.2.8.dfsg-2+b1 libfreetype6 recommends no packages. libfreetype6 suggests no packages. -- no debconf information
