3:32 a.m.
https://bugzilla.redhat.com/show_bug.cgi?id=2063714
Bug ID: 2063714
Summary: serif:lang=ja falls back to Droid Sans instead of Noto
Sans CJK JP
Product: Fedora
Version: 36
Status: NEW
Component: fontconfig
Assignee: tagoh(a)redhat.com
Reporter: petersen(a)redhat.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, 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:
In Fedora 36 when google-noto-serif-cjk-ttc-fonts is not installed
fontconfig seems to fall back to google-droid-sans-fonts
rather than google-noto-sans-cjk-ttc-fonts.
This might be related to/caused by bug 517789?
How reproducible:
100%
Steps to Reproduce:
1. boot Fedora Live image
2. fc-match serif:lang=ja
Actual results:
2. DroidSansJapanese.ttf: "Droid Sans" "Regular"
Expected results:
2. NotoSansCJK-Regular.ttc: "Noto Sans CJK JP" "Regular"
Additional info:
I get the same result with your older copr repo applied F35 fwiw.
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https://bugzilla.redhat.com/show_bug.cgi?id=2063714
6:58 a.m.
New subject: [Bug 2063714] serif:lang=ja falls back to Droid Sans instead of Noto
Sans CJK JP
https://bugzilla.redhat.com/show_bug.cgi?id=2063714
--- Comment #1 from Akira TAGOH <tagoh(a)redhat.com> ---
First, no, this isn't related to Bug#517789. fontconfig is trying to estimate
the score from the various properties provided by font caches. what fonts are
the best font according to the request is depending on what a sort of fonts
installed. strictly speaking, it is reproducible but it isn't that easy to
predict which one it would be.
Usually we add a substitute rule to make it predictable. it is mostly obvious
from the order of the family names. However, in this case, if no serif fonts is
installed, it will be decided by other properties. thus, it doesn't care what
fonts are default for sans-serif, and it could says this behavior isn't a bug.
One thing we can make it better is to add sans-serif at the end of family name
list as a last resort. that may looks like (not tested):
<fontconfig>
<match>
<test name="family">
<string>serif</string>
</test>
<edit name="family" mode="append_last">
<string>sans-serif</string>
</edit>
</match>
</fontconfig>
Note the position of this config. it must be proceeded prior to other config
which interacts with "sans-serif". This would gives you Noto Sans related
family instead of DejaVu Sans. though adding different typefaces as a fallback
sounds not a good idea.
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1:40 a.m.
New subject: [Bug 2063714] serif:lang=ja falls back to Droid Sans instead of Noto
Sans CJK JP
https://bugzilla.redhat.com/show_bug.cgi?id=2063714
--- Comment #2 from Jens Petersen <petersen(a)redhat.com> ---
Thanks for the detailed analysis, Akira
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3:43 a.m.
New subject: [Bug 2063714] serif:lang=ja falls back to Droid Sans instead of Noto
Sans CJK JP
https://bugzilla.redhat.com/show_bug.cgi?id=2063714
Akira TAGOH <tagoh(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|fontconfig |google-noto-fonts
CC| |petersen(a)redhat.com,
| |psatpute(a)redhat.com,
| |pwu(a)redhat.com
Status|NEW |MODIFIED
--- Comment #3 from Akira TAGOH <tagoh(a)redhat.com> ---
This should be fixed in google-noto-fonts-20201206^1.git0c78c8329-9.fc38
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4:32 a.m.
New subject: [Bug 2063714] serif:lang=ja falls back to Droid Sans instead of Noto
Sans CJK JP
https://bugzilla.redhat.com/show_bug.cgi?id=2063714
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Fixed In Version| |google-noto-fonts-20201206^
| |1.git0c78c8329-9.fc38
--- Comment #4 from Jens Petersen <petersen(a)redhat.com> ---
I tested the build and it LGTM now, thanks!
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8:45 a.m.
New subject: [Bug 2063714] serif:lang=ja falls back to Droid Sans instead of Noto
Sans CJK JP
https://bugzilla.redhat.com/show_bug.cgi?id=2063714
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|36 |37
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2:23 a.m.
New subject: [Bug 2063714] serif:lang=ja falls back to Droid Sans instead of Noto
Sans CJK JP
https://bugzilla.redhat.com/show_bug.cgi?id=2063714
Akira TAGOH <tagoh(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |NEXTRELEASE
Status|MODIFIED |CLOSED
Last Closed| |2023-08-07 07:23:37
--- Comment #5 from Akira TAGOH <tagoh(a)redhat.com> ---
Unfortunately there are no plans to backport this change for some reasons. This
has been fixed in f38 and f37 is going to be EOL. so closing this.
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