12:23 a.m.
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
Bug ID: 1470509
Summary: freetype/harfbuzz fc25->fc26 turns to ugly rendering
Product: Fedora
Version: 26
Component: freetype
Severity: medium
Assignee: mkasik(a)redhat.com
Reporter: pb(a)bieringer.de
QA Contact: extras-qa(a)fedoraproject.org
CC: behdad(a)fedoraproject.org,
fonts-bugs(a)lists.fedoraproject.org,
kevin(a)tigcc.ticalc.org, mkasik(a)redhat.com
Description of problem:
While on fc25 I have sharp fonts on a 1600x1200 96 dpi display after upgrade to
fc26 the rendering is ugly
Version-Release number of selected component (if applicable):
freetype-2.7.1-9.fc26.x86_64
harfbuzz-1.4.4-1.fc26.x86_64
harfbuzz-icu-1.4.4-1.fc26.x86_64
(from updates-testing)
+ fc26 original
How reproducible:
at least on 2 systems
Steps to Reproduce:
1. upgrade to fc26
2. login
Actual results:
bad system font rendering
Expected results:
same rendering as on fc25
Additional info:
# xrdb -q
Xft.lcdfilter: lcddefault
Xft.antialias: 0
Xft.hinting: 1
Xft.hintstyle: hintslight
Xft.rgba: rgb
Xft.dpi: 96
Xcursor.theme: default
Xcursor.size: 21
Xcursor.theme_core: 1
after downgrade with fc25 packages:
freetype-2.6.5-1.fc25.x86_64.rpm
harfbuzz-1.3.2-1.fc25.x86_64.rpm
harfbuzz-icu-1.3.2-1.fc25.x86_64.rpm
after reboot returns to previous and well rendering behavior.
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5:50 a.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
--- Comment #1 from Marek Kašík <mkasik(a)redhat.com> ---
Hi, could you attach here a screenshot of the problem? Ideally before and
after?
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12:47 p.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
--- Comment #2 from Peter Bieringer <pb(a)bieringer.de> ---
Created attachment 1297783
--> https://bugzilla.redhat.com/attachment.cgi?id=1297783&action=edit
screenshot from fc26 with fc25 freetype+harfbuzz under XFCE
same good font rendering as under fc25
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12:48 p.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
--- Comment #3 from Peter Bieringer <pb(a)bieringer.de> ---
Created attachment 1297784
--> https://bugzilla.redhat.com/attachment.cgi?id=1297784&action=edit
screenshot from fc26 with fc26 freetype+harfbuzz under XFCE
ugly rendering, not equal to fc25 - nothing changed beside simply updating the
3 RPMs:
freetype harfbuzz-icu harfbuzz
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8:45 a.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
Marek Kašík <mkasik(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |CLOSED
Resolution|--- |NOTABUG
Last Closed| |2017-07-14 09:45:15
--- Comment #4 from Marek Kašík <mkasik(a)redhat.com> ---
Hi, thank you for the screenshots.
freetype has changed default hinting engine in 2.7 from v35 to v40. The change
is more apparent when the antialiasing is off. You can reproduce it in e.g.
ftview by running "ftview -m "This is a test text" 19
/usr/share/fonts/dejavu/DejaVuSansMono.ttf", turning off antialiasing by
pressing "a" and then you can switch between the hinting modes by pressing
"H".
Upstream won't change it back and so we won't too.
If you prefer the older hinting engine, you can select it by setting
environment variable "FREETYPE_PROPERTIES" to
"truetype:interpreter-version=35"
in e.g. ~/.bash_profile. Or you can have a look whether a newer set of fonts
would suit you better with the default hinting engine.
I'm closing this as notabug since the change is intentional (and looking at the
freetype mailing list, they know about the visual change of DejaVu fonts).
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2:12 a.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
--- Comment #5 from Peter Bieringer <pb(a)bieringer.de> ---
Hi, thank you for all the details.
I hope freetype team had a very valid reason why they changed the default
behavior - imho this can cause a bunch of unhappy users.
The only good thing is that old behavior can be permanently enabled by e.g.
cat <<END >/etc/profile.d/LOCAL-freetype.sh
FREETYPE_PROPERTIES="truetype:interpreter-version=35"
export FREETYPE_PROPERTIES
END
until the old interpreter version disappears in code...but perhaps until then
the next improved "default" appears.
Or you can have a look whether a newer set of fonts would suit you
better with the default hinting engine
Are there any suggestions already around which "newer set of font" is more
compatible to new hinting engine...or has community wait now until first
"compatible font" appears...
I've tested mostly all previously on fc25 installed and therefore on fc26
updated fonts, all look ugly.
I personally not a fan of all the antialiasing stuff (for normal desktop
displays)...it reminds me to old CRT times and implicit unsharp fonts before
LCD (with sharp fonts) become common use - looks like times are rolling back.
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5:29 a.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
--- Comment #6 from Kevin Kofler <kevin(a)tigcc.ticalc.org> ---
I assume the new hinting engine has been tested with and optimized for
anti-aliased rendering only. There are not many people still using
non-anti-aliased fonts in 2007. They just always look pixelated.
If you think anti-aliased fonts are too blurry, try:
1. playing with the hinting level. The default is (was actually, for some
reason, recently changed to) slight hinting. I use medium hinting, which gives
a lot sharper fonts. Don't ask me why that is no longer the default.
2. trying out subpixel anti-aliasing with freetype-freeworld. That gives
sharper anti-aliasing on almost all LCD monitors. (I think the horizontal RGB
layout is the right one for most monitors. But if it doesn't look right, try
the others.)
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2:32 a.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
--- Comment #7 from Peter Bieringer <pb(a)bieringer.de> ---
Before receiving your ultimative hint to switch back to previous hinting
engine, I tried already playing around with the hinting level -> no real
success
Also tried "freetype-freeworld" -> but subpixel rendering by color did also
not
satisfy me.
on a 100 dpi 1600x1200 LCD (antialiasing=off, hinting=medium), "good eyes" and
doing 50% command line work I personally prefer sharp fonts (even in the
browser for smaller fonts) - let see whether I'm the only one...
On a 190 dpi display the new rendering engine + antialiasing + medium hinting
is looking good.
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4:26 a.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
--- Comment #8 from Marek Kašík <mkasik(a)redhat.com> ---
(In reply to Peter Bieringer from comment #5)
> Or you can have a look whether a newer set of fonts would suit
you better with the default hinting engine
Are there any suggestions already around which "newer set of font" is more
compatible to new hinting engine...or has community wait now until first
"compatible font" appears...
I've tested mostly all previously on fc25 installed and therefore on fc26
updated fonts, all look ugly.
I was speaking about Calibri and Cambria as mentioned in
https://www.freetype.org/freetype2/docs/subpixel-hinting.html (I forgot to add
the link before, sorry).
But looking at how they look with the new hinting engine without anti-aliasing
these are not a good choice for you.
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4:01 a.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
Marek Kašík <mkasik(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mchehab(a)infradead.org
--- Comment #9 from Marek Kašík <mkasik(a)redhat.com> ---
*** Bug 1469712 has been marked as a duplicate of this bug. ***
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11:36 a.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
Dan Horák <dan(a)danny.cz> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dan(a)danny.cz
--- Comment #10 from Dan Horák <dan(a)danny.cz> ---
For the record - I had the issue with the Anonymous Pro font in terminal, which
needs antialiasing disabled for best clarity (at least in F<=25). Will try with
antialiasing enabled and the new v40 interpreter.
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3:41 a.m.
New subject: [Bug 1470509] freetype/harfbuzz fc25->fc26 turns to ugly rendering
https://bugzilla.redhat.com/show_bug.cgi?id=1470509
Clemens Eisserer <linuxhippy(a)gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |linuxhippy(a)gmail.com
--- Comment #11 from Clemens Eisserer <linuxhippy(a)gmail.com> ---
Please re-open 1469712, which is about not working subpixel-antialising - not
just the different rasterization of glyphs.
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