[Bug 1895482] New: Liberation Fonts Support For Serbian locl Glyphs
Incomplete
by bugzilla＠redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=1895482
Bug ID: 1895482
Summary: Liberation Fonts Support For Serbian locl Glyphs
Incomplete
Product: Fedora
Version: rawhide
Hardware: x86_64
OS: Linux
Status: NEW
Component: liberation-fonts
Assignee: vishalvijayraghavan(a)gmail.com
Reporter: aleslavista(a)outlook.it
QA Contact: extras-qa(a)fedoraproject.org
CC: caillon+fedoraproject(a)gmail.com,
fonts-bugs(a)lists.fedoraproject.org,
gnome-sig(a)lists.fedoraproject.org,
i18n-bugs(a)lists.fedoraproject.org, mclasen(a)redhat.com,
petersen(a)redhat.com, psatpute(a)redhat.com,
rhughes(a)redhat.com, rstrode(a)redhat.com,
sandmann(a)redhat.com, vishalvijayraghavan(a)gmail.com
Target Milestone: ---
Classification: Fedora
Created attachment 1727218
--> https://bugzilla.redhat.com/attachment.cgi?id=1727218&action=edit
Correctly Localized Glyphs
Description of problem:
Liberation Fonts do NOT provide full support for Serbian localized glyphs.
Version-Release number of selected component (if applicable):
Liberation-Fonts 2.1-1-1
How reproducible:
You need a program that is able to access the font's localized glyphs: usually
that's LibreOffice Writer.
Steps to Reproduce:
1. Open LibreOffice Writer
2. Type бгдпт, then бгдпт in Italic, бгдпт in Bold and finally бгдпт in Italic
Bold with Liberation Serif, and do the same with Liberation Sans
3. Set the language to "Serbian Cyrillic"
Actual results:
Not all glyphs are correctly localized
Expected results:
See attachment for correctly localized glyphs
Additional info:
Liberation Mono has slanted Italic, therefore only the first glyph should be
localized: CYRILLIC LETTER SMALL BE.
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8 months, 3 weeks
[Bug 2001332] New: pango-view with --backend=ft2 and
---antialias=none generates antialiased renderings
by bugzilla＠redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2001332
Bug ID: 2001332
Summary: pango-view with --backend=ft2 and ---antialias=none
generates antialiased renderings
Product: Fedora
Version: 34
Hardware: x86_64
OS: Linux
Status: NEW
Component: pango
Severity: high
Assignee: pwu(a)redhat.com
Reporter: andre.maute(a)gmx.de
QA Contact: extras-qa(a)fedoraproject.org
CC: caillon+fedoraproject(a)gmail.com,
fonts-bugs(a)lists.fedoraproject.org,
gnome-sig(a)lists.fedoraproject.org,
i18n-bugs(a)lists.fedoraproject.org, mclasen(a)redhat.com,
pwu(a)redhat.com, rhughes(a)redhat.com,
rstrode(a)redhat.com, sandmann(a)redhat.com,
tagoh(a)redhat.com
Target Milestone: ---
Classification: Fedora
Created attachment 1820649
--> https://bugzilla.redhat.com/attachment.cgi?id=1820649&action=edit
image showing the problem
Description of problem:
Hello Fedora Team,
I have a recently updated Fedora 34 installation.
The problem I want to report is that it looks like
the pango-view tool is always turning antialiasing on
when one uses the FreeType backend --backend=ft2,
even when one explicitly switches antialiasing off with --antialias=none,
whereas it works for the --backend=cairo option.
A second question would be if the FreeType backend
generally doesn't/can't support --antialias=none?
I tried to find some examples in C with antialising turned off
but I wasn't successful.
I must confess I didn't check other distributions.
As pango-view is regarded as a tool for creating minimal reproducers
against the font rendering stack, I dare to set the severity to 'high' :-)
Best Regards
Andre
Version-Release number of selected component (if applicable):
$ uname -a
Linux localhost.localdomain 5.13.13-200.fc34.x86_64 #1 SMP Thu Aug 26 17:06:39
UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
$ dnf list installed | grep dejavu
dejavu-lgc-sans-fonts.noarch 2.37-16.fc34
@fedora
dejavu-lgc-sans-mono-fonts.noarch 2.37-16.fc34
@fedora
dejavu-lgc-serif-fonts.noarch 2.37-16.fc34
@fedora
dejavu-sans-fonts.noarch 2.37-16.fc34
@fedora
dejavu-sans-mono-fonts.noarch 2.37-16.fc34
@fedora
dejavu-serif-fonts.noarch 2.37-16.fc34
@fedora
$ dnf list installed | grep ImageMagick
ImageMagick.x86_64 1:6.9.11.27-3.fc34
@fedora
ImageMagick-libs.x86_64 1:6.9.11.27-3.fc34
@fedora
$ dnf list installed | grep pango
pango.i686 1.48.9-2.fc34
@updates
pango.x86_64 1.48.9-2.fc34
@updates
pango-devel.x86_64 1.48.9-2.fc34
@updates
pangomm.x86_64 2.46.1-1.fc34
@updates
$ dnf list installed | grep freetype
freetype.i686 2.10.4-3.fc34
@fedora
freetype.x86_64 2.10.4-3.fc34
@fedora
freetype-devel.x86_64 2.10.4-3.fc34
@fedora
$ dnf list installed | grep fontconfig
fontconfig.i686 2.13.94-2.fc34
@updates
fontconfig.x86_64 2.13.94-2.fc34
@updates
fontconfig-devel.x86_64 2.13.94-2.fc34
@updates
$ dnf list installed | grep cairo
cairo.i686 1.17.4-3.fc34
@fedora
cairo.x86_64 1.17.4-3.fc34
@fedora
cairo-devel.x86_64 1.17.4-3.fc34
@fedora
cairo-gobject.i686 1.17.4-3.fc34
@fedora
cairo-gobject.x86_64 1.17.4-3.fc34
@fedora
cairomm.x86_64 1.14.2-8.fc34
@fedora
python2-cairo.x86_64 1.18.2-8.fc34
@fedora
python3-cairo.x86_64 1.20.0-2.fc34
@fedora
How reproducible:
Always
Steps to Reproduce:
$ pango-view --no-display --dpi=72 --backend=cairo --antialias=none
--font="DejaVu Sans 38" --text="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
--output=abc-cairo-aa-none.png
$ pango-view --no-display --dpi=72 --backend=cairo --antialias=gray
--font="DejaVu Sans 38" --text="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
--output=abc-cairo-aa-gray.png
$ pango-view --no-display --dpi=72 --backend=cairo --antialias=subpixel
--font="DejaVu Sans 38" --text="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
--output=abc-cairo-aa-subpixel.png
$ pango-view --no-display --dpi=72 --backend=ft2 --antialias=none
--font="DejaVu Sans 38" --text="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
--output=abc-ft2-aa-none.png
$ pango-view --no-display --dpi=72 --backend=ft2 --antialias=gray
--font="DejaVu Sans 38" --text="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
--output=abc-ft2-aa-gray.png
$ pango-view --no-display --dpi=72 --backend=ft2 --antialias=subpixel
--font="DejaVu Sans 38" --text="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
--output=abc-ft2-aa-subpixel.png
$ gimp abc-*.png
Actual results:
Attached pngs.
The file abc-ft2-aa-none.png is in gray-scale and not as expected in
black-white.
The file abc-cairo-aa-none.png is in black-white as expected.
Expected results:
I would have expected the files abc*--aa-none.png looking near identical.
Additional info:
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8 months, 3 weeks
[Bug 1898319] New: dejavu-lgc-sans-mono-fonts: Misleading summary
by bugzilla＠redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=1898319
Bug ID: 1898319
Summary: dejavu-lgc-sans-mono-fonts: Misleading summary
Product: Fedora
Version: 33
Hardware: x86_64
OS: Linux
Status: NEW
Component: dejavu-fonts
Severity: low
Assignee: nicolas.mailhot(a)laposte.net
Reporter: van.de.bugger(a)gmail.com
QA Contact: extras-qa(a)fedoraproject.org
CC: fonts-bugs(a)lists.fedoraproject.org,
nicolas.mailhot(a)laposte.net, paul(a)frixxon.co.uk,
peter(a)thecodergeek.com
Target Milestone: ---
Classification: Fedora
Description of problem:
Summary of dejavu-lgc-sans-mono-fonts is misleading. It is: "A variable-width
Latin-Greek-Cyrillic mono-space font family". Accordingly to Wikipedia:
> A monospaced font, also called a fixed-pitch, fixed-width, or non-proportional font, is a font whose letters and characters each occupy the same amount of horizontal space. This contrasts with variable-width fonts, where the letters and spacings have different widths.
So, a font is either monospaced or variable-width but not both, these are
mutually exclusive concepts. How dejavu-lgc-sans-mono-fonts can be "a
variable-width mono-space font family"??
Version-Release number of selected component (if applicable):
dejavu-lgc-sans-mono-fonts-2.37-15.fc33
How reproducible:
Always.
Steps to Reproduce:
1. $ dnf info dejavu-lgc-sans-mono-fonts
Actual results:
Summary : A variable-width Latin-Greek-Cyrillic mono-space font family
Expected results:
Summary : A Latin-Greek-Cyrillic mono-space font family
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8 months, 3 weeks
[Bug 2021366] New: Nimbus Mono PS font should not fc-match Courier,
as certain letter combinations are not monospaced
by bugzilla＠redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2021366
Bug ID: 2021366
Summary: Nimbus Mono PS font should not fc-match Courier, as
certain letter combinations are not monospaced
Product: Fedora
Version: 35
Hardware: x86_64
OS: Linux
Status: NEW
Component: Fonts
Assignee: i18n-bugs(a)lists.fedoraproject.org
Reporter: info(a)skierpage.com
QA Contact: fonts-bugs(a)lists.fedoraproject.org
Target Milestone: ---
Classification: Fedora
Created attachment 1840789
--> https://bugzilla.redhat.com/attachment.cgi?id=1840789&action=edit
look at "affiliation"
Description of problem:
I visited https://schema.org/Person in Firefox in Fedora 35 KDE spin and
noticed the monospace text "affiliation" was not monospaced; the letters "ffi"
were on top of each other as if replaced by the ligature ffi.
The page CSS is styling the <code> tag "font-family: Courier, monospace;", and
in Fedora 35 KDE Spin `fc-match Courier` returns
NimbusMonoPS-Regular.otf: "Nimbus Mono PS" "Regular"
indeed, if I set font-family to "Nimbus Mono PS" in some simple HTML
https://www.skierpage.com/bugs/nimbusmono_not_monospaced.html , other ff
combinations are also "ligature-ized".
I tried these two URLs in the chromium-browser package and in the Epiphany and
Konqueror browser flatpaks. These did not use "Nimbus Mono PS" as the fallback
font for font-family "Courier" so did not display "affiliation" badly on the
Person web page, but if you specify font-family "Nimbus Mono PS", you get the
ligature.
Version-Release number of selected component (if applicable):
Mozilla Firefox 94.0
urw-base35-fonts-20200910-9.fc35.src.rpm
How reproducible:
Always.
Steps to Reproduce:
1. Visit https://schema.org/Person and
https://www.skierpage.com/bugs/nimbusmono_not_monospaced.html in Firefox and
other browsers.
2. Note how "ffi" appears.
Actual results:
Firefox uses "Nimbus Mono PS" as the fallback for font-family Courier; all
these browsers replace "ffi" and such with the ligature character in "Nimbus
Mono PS", destroying the desired monospace effect.
Expected results:
Monospaced fonts should appear... monospaced, so every character should occupy
the same amount of horizontal space. However, if a font provides ligature
glyphs for "ffi" and such, then it's unclear if it's wrong for the browser to
use them; (l33t developers now explicitly use monospaced coding fonts that do
wacky substitutions.)
So the fix could be for Firefox and/or fc-match to _not_ use Nimbus Mono PS
when text handling requests Courier. The other browsers on my system don't,
I'm not sure why. Another could be to remove the ligatures from Nimbus Mono PS.
Additional info:
The rendering of code on that page (see attachment) is pretty terrible, note
the oversized 'd's in "address". Another reason to have Courier match some
other monospaced font than Nimbus Mono PS.
You can use the Fontmatrix program to enable OpenType features; checking latn >
dflt > liga changes the display of "ff" combinations.
Firefox using ligatures in monospaced fonts is
https://bugzilla.mozilla.org/show_bug.cgi?id=384395 , was closed WONTFIX "We
can't really do anything about it -- the underlying text system is doing the
ligaturization, not us".
ArchLinux users discussed the problem in
https://bbs.archlinux.org/viewtopic.php?id=238832
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https://bugzilla.redhat.com/show_bug.cgi?id=2021366
9 months, 2 weeks
[Bug 1813728] New: Square four dot Unicode character has incorrect
glyph
by bugzilla＠redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=1813728
Bug ID: 1813728
Summary: Square four dot Unicode character has incorrect glyph
Product: Fedora
Version: 31
Hardware: x86_64
OS: Linux
Status: NEW
Component: pango
Severity: low
Assignee: pwu(a)redhat.com
Reporter: guillaumepoiriermorency(a)gmail.com
QA Contact: extras-qa(a)fedoraproject.org
CC: caillon+fedoraproject(a)gmail.com,
fonts-bugs(a)lists.fedoraproject.org,
gnome-sig(a)lists.fedoraproject.org,
i18n-bugs(a)lists.fedoraproject.org,
john.j5live(a)gmail.com, mclasen(a)redhat.com,
pwu(a)redhat.com, rhughes(a)redhat.com,
rstrode(a)redhat.com, sandmann(a)redhat.com,
tagoh(a)redhat.com
Target Milestone: ---
Classification: Fedora
Description of problem:
The glyph for the Unicode "square four dot" character is incorrect.
Version-Release number of selected component (if applicable):
I think this problem arose when upgrading from Fedora 30 to Fedora 31.
How reproducible:
The simplest way is to start GNOME Characters Map and search for "square four
dot".
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10 months
[Bug 1809989] New: By default install Noto fonts for Unicode scripts
not already covered by default
by bugzilla＠redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=1809989
Bug ID: 1809989
Summary: By default install Noto fonts for Unicode scripts not
already covered by default
Product: Fedora
Version: 31
Status: NEW
Component: google-noto-fonts
Assignee: petersen(a)redhat.com
Reporter: hsivonen(a)hsivonen.fi
QA Contact: extras-qa(a)fedoraproject.org
CC: fonts-bugs(a)lists.fedoraproject.org,
i18n-bugs(a)lists.fedoraproject.org,
petersen(a)redhat.com, psatpute(a)redhat.com,
pwu(a)redhat.com, tagoh(a)redhat.com
Target Milestone: ---
Classification: Fedora
There is currently movement towards protecting browser users from font
fingerprinting. This means refusing, by default, to load user-installed fonts,
which makes the set of fonts that each OS installs by default even more
important than before.
Firefox bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=1582687
W3C CSS WG issue:
https://github.com/w3c/csswg-drafts/issues/4497
Currently, Windows 10, macOS, Android, and Chrome OS provide broader
installed-by-default Unicode coverage than Fedora.
Examples of living scripts that have enough active users to make it to the list
at
https://en.wikipedia.org/wiki/List_of_writing_systems#List_of_writing_scr...
but are not supported by default in Fedora 31 include Javanese, Sundanese,
Batak, Balinese, Mongolian, and New Tai Lue.
Egyptian hieroglyphs is an example of a dead script the Fedora 31 doesn't
support out of the box but Windows 10, macOS, Chrome OS, and Android do.
To remedy this with minimal disk space impact, I suggest the same approach that
Apple took. Apple bundles with macOS those Noto fonts that cover scripts that
were not already covered by the previous installed-by-default set of fonts on
macOS. In the macOS case, the on-disk footprint of the Noto fonts that were
required to take macOS to Android/Chrome OS-competitive Unicode coverage was
only a couple of megabytes. (The fonts are hidden in /Library/Application
Support/Apple/Fonts/Language Support/.) In the case of Fedora, the set of Noto
fonts required to reach the Chrome OS / Android level of script coverage is a
bit larger than in the macOS case but should still be manageable.
Please install, by default, those Noto fonts that provide support for scripts
that are not properly supported by the fonts that Fedora already installs by
default.
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10 months
[Bug 1784650] New: Fontconfig is slow, causing stuttering and
freezing
by bugzilla＠redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=1784650
Bug ID: 1784650
Summary: Fontconfig is slow, causing stuttering and freezing
Product: Fedora
Version: 31
Status: NEW
Component: fontconfig
Severity: high
Assignee: tagoh(a)redhat.com
Reporter: bepvte+bugzilla(a)gmail.com
QA Contact: extras-qa(a)fedoraproject.org
CC: ajax(a)redhat.com, caillon+fedoraproject(a)gmail.com,
fonts-bugs(a)lists.fedoraproject.org,
gnome-sig(a)lists.fedoraproject.org,
i18n-bugs(a)lists.fedoraproject.org,
john.j5live(a)gmail.com, mclasen(a)redhat.com,
pnemade(a)redhat.com, rhughes(a)redhat.com,
rstrode(a)redhat.com, sandmann(a)redhat.com,
tagoh(a)redhat.com
Target Milestone: ---
Classification: Fedora
Description of problem:
Fontconfig is much much slower than on other distros, and it stutters or
freezes applications that use it.
Version-Release number of selected component (if applicable):
Name : fontconfig
Version : 2.13.92
Release : 3.fc31
Architecture: x86_64
How reproducible:
I can reproduce this bug on a fresh Fedora 31 vm with the Xfce desktop and
google-noto-sans-* fonts installed.
Steps to Reproduce:
1. dnf install google-noto-sans-*
2. run gedit on the attached example file
alternatively
1. dnf install google-noto-sans-*
2. open firefox and browse to https://www.wikidata.org/wiki/Q52 (page with lots
of languages)
Actual results:
It takes around 60 seconds for gedit to become responsive to scrolling and
input. Mousepad is faster but still slow.
It takes firefox upwards of 5 minutes to get to first paint on a page with many
fonts or languages, compared to a simpler page.
Expected results:
Gedit should load files with many fonts at a similar speed as other distros.
The page should load quickly, like on Debian and others.
Additional info:
I have tried to diagnose the source of this issue in many ways.
Running `perf trace` on what sysprof indicated was the most busy function
(FcStrCmpIgnoreCaseAndDelims), shows that every name of every font family is
being compared to every other name of every other font family. I do not know if
this is a normal behaviour of fontconfig.
I have noticed the amount of calls to "FcStrCmpIgnoreCaseAndDelims" and program
startup time both drop to a similar amount as Debian's when all of the
"google-noto" configuration files in /etc/fonts/conf.d/ are deleted (These
files are not present in Debian). However, this might not be the source of the
problem:
In the Debian vm, with a copy of my computer's /etc/fonts/, including the
google-noto files, (I took care to ensure that there would be no broken
symlinks) and /usr/share/fonts, fontconfig does not stall any programs. The
amount of calls to FcStrCmpIgnoreCaseAndDelims is also much lower as well.
This led me to believe that it was a difference caused by compiler flags but
this does not seem to be the case. I tried to replace the optflags in the
package, except for the rpmbuild required debug ones, and found no difference.
I also checked to ensure that it was not caused by GCC version differences.
Debian results for mousepad:
1,845,449 calls to FcStrCmpIgnoreCaseAndDelims
Time: 5 seconds
Fedora results for mousepad:
11,658,380 calls to FcStrCmpIgnoreCaseAndDelims
Time: 23 seconds
https://perfht.ml/2tleJxN
Here is a link to a Firefox profiler result of the wikidata page, where in the
flame graph you can see that Firefox is spending most of its time in
fontconfig. You can also see "FirstNonBlankPaint" is at 50 seconds in the
marker table.
TLDR: Fontconfig matching is slow with all google-noto fonts installed, unless
you remove the noto config files. Using the same exact font directory and
config directory (including the noto config files) on Debian does not cause the
same problem.
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11 months
[Bug 1806272] New: forge-font macro transition causes broken
dependencies
by bugzilla＠redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=1806272
Bug ID: 1806272
Summary: forge-font macro transition causes broken dependencies
Product: Fedora
Version: rawhide
Status: NEW
Component: dejavu-fonts
Assignee: nicolas.mailhot(a)laposte.net
Reporter: decathorpe(a)gmail.com
QA Contact: extras-qa(a)fedoraproject.org
CC: fonts-bugs(a)lists.fedoraproject.org,
nicolas.mailhot(a)laposte.net, paul(a)frixxon.co.uk,
peter(a)thecodergeek.com
Target Milestone: ---
Classification: Fedora
With the transition to new forge-based fonts macros, the -common subpackage was
dropped, but some packages depend on that. They are now not installable on
fedora 32+ because that package is gone (only Obsoleted, not Provided).
This affects at least python3-weasyprint.
Additionally, the sdljava-demo package now has broken dependencies as well:
- /usr/share/fonts/dejavu/DejaVuSans-Bold.ttf
- /usr/share/fonts/dejavu/DejaVuSans-BoldOblique.ttf
- /usr/share/fonts/dejavu/DejaVuSans-Oblique.ttf
- /usr/share/fonts/dejavu/DejaVuSans.ttf
Probably those files were renamed with the forge macro transition.
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12 months