On Sat, Dec 21, 2013 at 11:23:57AM -0800, Josh Triplett wrote: > On Mon, Dec 16, 2013 at 11:53:01AM +0100, BubuXP wrote: > > I found the cause (maybe). > > Probably the fuzzy fonts are all OpenType fonts. Starting from > > freetype 2.5.0.1, the Adobe CFF engine is the default rasterizer for > > those class of fonts. > > https://blogs.adobe.com/typblography/2013/05/adobe-contributes-cff-rasterizer-to-freetype.html > > > > From: > > http://lists.freedesktop.org/archives/fontconfig/2013-December/005026.html > > > If I remember correctly the new Adobe CFF hinter hinting levels are out > > > of sync with the autohinter used with TTF fonts. > > > > As reported in the above link, to mitigate the bug this fix should be > > enabled by default in the next fontconfig version (2.11.1, that will > > be released soon): > > > > <match target="font"> > > <test name="fontformat" compare="eq"> > > <string>CFF</string> > > </test> > > <edit name="hintstyle" mode="assign"> > > <const>hintslight</const> > > </edit> > > </match> > > I can confirm that adding that to ~/.config/fontconfig/fonts.conf > (with the appropriate XML wrapping for a fontconfig config file) solves > the problem. I took screenshots of the same dialog with 2.4.9-1.1 and > with 2.5.1-1 using the above config snippet, and got binary-identical > screenshot PNGs. > > On Mon, Dec 16, 2013 at 09:50:33AM -0800, Steve Langasek wrote: > > Use of the Adobe hinter is optional and the default can be changed at > > compile time. Does someone who's hitting this bug want to try rebuilding > > freetype locally with the option changed, to see if that fixes it? (If not, > > I'll prepare a test build for people to try, but it'll take a few days > > before I can get to it.) > > I'd actually recommend *against* disabling the new hinter. I've seen > several examples of hinted fonts displaying better with the new hinter. > I'd simply recommend fixing the hintstyle mechanism such that it > respects the same configuration as the previous hinter, so that anyone > using slight hinting with the previous hinter will continue to get > slight hinting with the new hinter.
It looks like I spoke too soon. With the new version of libfreetype6 (2.5.1-1) and the fontconfig configuration above, most font rendering matches the behavior of 2.4.9-1.1, but some things still render differently. For instance, see the attached screenshots of gnome-terminal. The terminal contents seem to render identically, but the tab labels get blurry with 2.5.1-1, even with the configuration from above. - Josh Triplett -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
