[Bug 2251384] New: Wrong Arabic font prioritization in several apps. (Droid kufi prioritized over noto-sans)
9:41 a.m.
https://bugzilla.redhat.com/show_bug.cgi?id=2251384
Bug ID: 2251384
Summary: Wrong Arabic font prioritization in several apps.
(Droid kufi prioritized over noto-sans)
Product: Fedora
Version: 39
OS: Linux
Status: NEW
Component: fontconfig
Severity: low
Assignee: tagoh(a)redhat.com
Reporter: alawamiaz(a)gmail.com
QA Contact: extras-qa(a)fedoraproject.org
CC: ajax(a)redhat.com, fonts-bugs(a)lists.fedoraproject.org,
gnome-sig(a)lists.fedoraproject.org,
i18n-bugs(a)lists.fedoraproject.org, mclasen(a)redhat.com,
rstrode(a)redhat.com, tagoh(a)redhat.com
Target Milestone: ---
Classification: Fedora
Description of problem:
Few fedora releases ago, Noto-Sans-Arabic was set to be the default. It was
working fine and Arabic text was displayed in all web browsers using this font.
sometime in last few months, every web browser in fedora suddenly started
prioritizing "Druid Kufi" font over noto-sans-arabic. which now looks makes
arabic text looks jarring.
Interestingly, when running from live usb image, noto-sans-arabic is correctly
priotirized and being used to render all arabic web pages, but only for FEW
MINUTES and then suddenly it's switched to druid kufi!, without updating
anything, just running Firefox for few minutes.
It's also reproducible after fresh install, the first 3 minutes of using the
new fedora installation, Firefox and other browsers are displaying noto-sans
then suddenly switch to druid kufi.
Version-Release number of selected component (if applicable):
38-39
How reproducible:
Consistently
Steps to Reproduce:
1.Connect to internet
2.Open arabic webpage in firefox (ex, wikipedia)
3.text would be displayed with druid kufi instead of the default
noto-sans-arabic which was chosen to be the default sometime around fedora 36.
Actual results:
Arabic Text displayed with druid kufi font
Expected results:
Arabic text should be displayed using noto-sans-arabic as was the case before.
Additional info:
The font in gnome and top bars is still correctly displayed using
noto-sans-arabic. It's browsers that exhibit the problem.
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1:47 a.m.
New subject: [Bug 2251384] Wrong Arabic font prioritization in several apps.
(Droid kufi prioritized over noto-sans)
https://bugzilla.redhat.com/show_bug.cgi?id=2251384
Akira TAGOH <tagoh(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |needinfo?(alawamiaz(a)gmail.c
| |om)
Doc Type|--- |If docs needed, set a value
--- Comment #1 from Akira TAGOH <tagoh(a)redhat.com> ---
How's your font settings in firefox?
I tried browsing https://ar.wikipedia.org on firefox in freshly installed f39.
I can't see "Droid Arabic Kufi" font family name in some debugging
information
when I inspected a page with the developer tool.
The font in gnome and top bars is still correctly displayed using
noto-sans-arabic. It's browsers that exhibit the problem.
It might be most likely a problem on firefox since it works on desktop
generally.
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7:06 a.m.
New subject: [Bug 2251384] Wrong Arabic font prioritization in several apps.
(Droid kufi prioritized over noto-sans)
https://bugzilla.redhat.com/show_bug.cgi?id=2251384
Ali <alawamiaz(a)gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags|needinfo?(alawamiaz(a)gmail.c |needinfo?(tagoh(a)redhat.com)
|om) |needinfo?(tagoh(a)redhat.com)
--- Comment #2 from Ali <alawamiaz(a)gmail.com> ---
Ok some of my the points i reported are apparently wrong/inaccurate. I should
have been more diligent before reporting, sorry.
The problem was somehow connected to my firefox account syncing, so now this
testing is with now account syncing.
So the following testing is all from live usb with no firefox account
current findings:
1. Using latest fedora image, I can reproduce the kufi font problem only by
using private windows in firefox. normal windows are using the correct noto
sans but private windows somehow use kufi in firefox.
2. Forcing change in the font settings of firefox doesn't seem to have an
effect.
3. Gnome epiphany web is all Kufi, no noto at all.
4. Chrome/Chromium are using noto sans for webpages, but somehow tab titles are
using kufi.
None of these problems are reproducible in other distros that use noto sans
arabic as default.
For example ubuntu which uses noto sans, correctly display noto sans in the
everywhere in all of the previously mentioned 4 problematic scenarios .
Seeing that kufi font is somehow found to be used in wierd specific cases
across several totally unrelated packages in fedora(epihany/chrome/firefox),
and these findings are completely absent in ubuntu, I wonder what is the
current fedora config of the kufi font? What are these applications doing that
they somehow get kufi font to render some text only in fedora but not other
distros?! I don't know anything about how fonts work in linux so i'm helpless
here.
Thanks.
@tagoh(a)redhat.com
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1:47 a.m.
New subject: [Bug 2251384] Wrong Arabic font prioritization in several apps.
(Droid kufi prioritized over noto-sans)
https://bugzilla.redhat.com/show_bug.cgi?id=2251384
Akira TAGOH <tagoh(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |erack(a)redhat.com,
| |gecko-bugs-nobody@fedorapro
| |ject.org,
| |jhorak(a)redhat.com,
| |klaas(a)demter.de
Assignee|tagoh(a)redhat.com |gecko-bugs-nobody@fedorapro
| |ject.org
Component|fontconfig |firefox
Flags|needinfo?(tagoh(a)redhat.com) |
|needinfo?(tagoh(a)redhat.com) |
--- Comment #3 from Akira TAGOH <tagoh(a)redhat.com> ---
None of these problems are reproducible in other distros that use
noto sans arabic as default.
For example ubuntu which uses noto sans, correctly display noto sans in the everywhere in
all of the previously mentioned 4 problematic scenarios .
With Droid Arabic Kufi font installed? or without?
Seeing that kufi font is somehow found to be used in wierd specific
cases across several totally unrelated packages in fedora(epihany/chrome/firefox), and
these findings are completely absent in ubuntu, I wonder what is the current fedora config
of the kufi font? What are these applications doing that they somehow get kufi font to
render some text only in fedora but not other distros?! I don't know anything about
how fonts work in linux so i'm helpless here.
We have google-droid-sans-fonts installed due to satisfy dependency for
ghostscript. We know it has some problems on text rendering but we can't drop
it because of it.
Anyway:
1. Using latest fedora image, I can reproduce the kufi font problem
only by using private windows in firefox. normal windows are using the correct noto sans
but private windows somehow use kufi in firefox.
This looks more likely a firefox specific problem. let me reassign this to
firefox so far.
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3:35 a.m.
New subject: [Bug 2251384] Wrong Arabic font prioritization in several apps.
(Droid kufi prioritized over noto-sans)
https://bugzilla.redhat.com/show_bug.cgi?id=2251384
Ali <alawamiaz(a)gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |needinfo?(tagoh(a)redhat.com)
| |needinfo?(tagoh(a)redhat.com)
--- Comment #4 from Ali <alawamiaz(a)gmail.com> ---
With Droid Arabic Kufi font installed? or without?
Yes with
Droid Arabic Kufi font installed, Ubuntu's firefox doesn't prioritize
droid kufi over noto-sans. Also gnome epiphany browser on ubuntu uses noto
sans, while fedora's gnome web browser completely favours kufi droid.
The kufi droid isn't available as a package in ubuntu so I copied the ttf from
fedora and installed it in ubuntu using gnome fonts app. can't reproduce the
issue even after i reinstalled fontconfig in ubuntu to regenerate the
fontcache. Intrestingly I believe ubuntu is using fonts-droid-fallback package
That i beileve (don't know) links droid names to sans fonts as arabic noto
fonts were historically dorid fonts. For example they have noto-kufi-arabic
preinstalled which is exactly the same as droid kufi just different name but
noto-sans-arabic is always prioritized. Not sure if this has any relevance.
This looks more likely a firefox specific problem. let me reassign
this to firefox so far.
Possibly, but isn't that unlikely considering the problem is also replicated
using gnome web on fedora but not on ubuntu's gnome web?
In addition, there are more problems with arabic font config in fedora. For
example, if dejavu fonts are installed on fedora, they automatically become
prioritized over anything noto for arabic.
this happens in both Gnome web and firefox(private windows). Dejavu was the
previously the default for arabic, considering it's very ugly and gets
installed as dep for popular packages like vlc, I think this may warrant
further investigation. Interestingly, Ubuntu still keeps dejavu preinstalled,
but again it never get prioritized over noto sans for arabic like in fedora.
Thanks.
@tagoh(a)redhat.com
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11:58 p.m.
New subject: [Bug 2251384] Wrong Arabic font prioritization in several apps.
(Droid kufi prioritized over noto-sans)
https://bugzilla.redhat.com/show_bug.cgi?id=2251384
Akira TAGOH <tagoh(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags|needinfo?(tagoh(a)redhat.com) |
|needinfo?(tagoh(a)redhat.com) |
--- Comment #5 from Akira TAGOH <tagoh(a)redhat.com> ---
If you try this with new profile on firefox and/or new account on Fedora, does
this still happen?
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3:58 a.m.
New subject: [Bug 2251384] Wrong Arabic font prioritization in several apps.
(Droid kufi prioritized over noto-sans)
https://bugzilla.redhat.com/show_bug.cgi?id=2251384
--- Comment #6 from Ali <alawamiaz(a)gmail.com> ---
Yes, I'm still able to reproduce the issue after creating new profile in
firefox, private windows still use kufi over noto.
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2:25 a.m.
New subject: [Bug 2251384] Wrong Arabic font prioritization in several apps.
(Droid kufi prioritized over noto-sans)
https://bugzilla.redhat.com/show_bug.cgi?id=2251384
Akira TAGOH <tagoh(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |petersen(a)redhat.com,
| |pwu(a)redhat.com
Assignee|gecko-bugs-nobody@fedorapro |tagoh(a)redhat.com
|ject.org |
Component|firefox |google-noto-fonts
--- Comment #7 from Akira TAGOH <tagoh(a)redhat.com> ---
After a few investigation, I figured out that this may be fixed in
google-noto-fonts package.
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2:15 p.m.
New subject: [Bug 2251384] Wrong Arabic font prioritization in several apps.
(Droid kufi prioritized over noto-sans)
https://bugzilla.redhat.com/show_bug.cgi?id=2251384
--- Comment #8 from Ali <alawamiaz(a)gmail.com> ---
Good, thanks for your work.
Another problem regarding the Arabic font config is that if dejavu fonts gets
installed, it automatically becomes the main font of webpages in both firefox
and gnome web.
I believe this bug has existed from the beginning since fedora switched to
noto.
Could you reproduce the issue on your side?
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