https://bugzilla.redhat.com/show_bug.cgi?id=1999078
Bug ID: 1999078
Summary: Hinting broken for Bitstream Vera/DejaVu in Epiphany
Product: Fedora
Version: 34
Status: NEW
Component: freetype
Assignee: mka...@redhat.com
Reporter: oss...@cendio.se
QA Contact: extras...@fedoraproject.org
CC: a...@redhat.com, caillon+fedoraproj...@gmail.com,
fonts-bugs@lists.fedoraproject.org,
gnome-...@lists.fedoraproject.org,
ke...@tigcc.ticalc.org, m...@net-c.com,
mcla...@redhat.com, mka...@redhat.com,
rhug...@redhat.com, rstr...@redhat.com,
sandm...@redhat.com
Target Milestone: ---
Classification: Fedora
Created attachment 1819062
--> https://bugzilla.redhat.com/attachment.cgi?id=1819062&action=edit
Screenshot with varying sub pixel placement
Description of problem:
After upgrading from Fedora 33 to Fedora 34, there is some extremely odd
hinting bug in Epiphany. The same glyph appears with different amount of
hinting in the same line of text, causing a very odd and blurry appearance.
Version-Release number of selected component (if applicable):
freetype-2.10.4-3.fc34.x86_64
bitstream-vera-sans-fonts-1.10-41.fc33.noarch
dejavu-sans-fonts-2.37-16.fc34.noarch
epiphany-40.3-1.fc34.x86_64
webkit2gtk3-2.32.3-1.fc34.x86_64
pango-1.48.9-2.fc34.x86_64
How reproducible:
100%
Steps to Reproduce:
1. Configure Epiphany to use Bitstream Vera or DejaVu Sans Book
2. Configure full hinting
Actual results:
Fully hinted, consistent glyphs.
Expected results:
Some glyphs are fully hinted, some look like they've been offset by a fraction
of a pixel. (See screenshot)
Additional info:
So far I'm only seeing this in Epiphany. I still filed this for freetype since
as far as I know it is freetype that does all glyph layout, hinting and
sub-pixel stuff. Feel free to move as appropriate. So it seems odd that a bug
in Epiphany can screw this up.
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