[Bug 1349567] New: avoid using special purpose fonts such as apx-fonts

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1349567

            Bug ID: 1349567
           Summary: avoid using special purpose fonts such as apx-fonts
           Product: Fedora
           Version: 23
         Component: fontconfig
          Assignee: tagoh(a)redhat.com
          Reporter: htl10(a)users.sourceforge.net
        QA Contact: extras-qa(a)fedoraproject.org
                CC: fonts-bugs(a)lists.fedoraproject.org,
                    i18n-bugs(a)lists.fedoraproject.org, pnemade(a)redhat.com,
                    tagoh(a)redhat.com



Description of problem:
I started noticing many web pages on firefox, icecat, etc using a rather
undesirable choice of fonts a while ago, and finally tracked it down with
gnome-font-viewer to see which font is that. It is apx-fonts .
/usr/share/fonts/apx/04b03.ttf .

The problem is that its name starts with "04b03", and therefore comes first in
a fair number of font matches (don't know the exact criteria, but often
enough)...

Version-Release number of selected component (if applicable):
apx-fonts-0.1-3.fc23.noarch
fontconfig-2.11.94-4.fc23.x86_64
fontconfig-2.11.94-4.fc23.i686

How reproducible:
Always, since installing it (I installed a whole lot of fonts a while ago,
basically just did "dnf install -y *fonts").

Steps to Reproduce:
1. installing apx-fonts
2. go to some web sites
3.

Actual results:
undesirable font choice.

Expected results:
pick something more suitable.

Additional info:
I know I can configure it myself in ~/.config/fontconfig, but fedora should
help in avoiding these in the first place; since "dnf install -y *fonts" is
probably common enough action.

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[Bug 1349567] avoid using special purpose fonts such as apx-fonts

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https://bugzilla.redhat.com/show_bug.cgi?id=1349567

Akira TAGOH <tagoh(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |projects.rg(a)smart.ms
          Component|fontconfig                  |apx
           Assignee|tagoh(a)redhat.com            |projects.rg(a)smart.ms



--- Comment #1 from Akira TAGOH <tagoh(a)redhat.com&gt; ---
$ fc-query /usr/share/fonts/apx/04b03.ttf
Pattern has 22 elts (size 32)
        family: "04b03"(s)
        familylang: "en"(s)
        style: "Regular"(s)
        stylelang: "en"(s)
        fullname: "04b03"(s)
        fullnamelang: "en"(s)
        slant: 0(i)(s)
        weight: 80(i)(s)
        width: 100(i)(s)
        foundry: "unknown"(s)
        file: "/usr/share/fonts/apx/04b03.ttf"(s)
        index: 0(i)(s)
        outline: True(s)
        scalable: True(s)
        charset:
        0000: 00000000 ffffffff ffffffff 7fffffff 00000000 00000001 00000000
00000000
        0020: 00010000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
(s)
        lang:
fj|ho|ia|ie|io|nr|om|so|ss|st|sw|ts|uz|xh|zu|kj|kwm|ms|ng|rn|rw|sn|za(s)
        fontversion: 65536(i)(s)
        fontformat: "TrueType"(s)
        decorative: False(s)
        postscriptname: "04b03"(s)
        color: False(s)
        symbol: False(s)

Less glyph coverage on this font. and no own config file in this package. so it
may be rarely picked up as *better fonts* according to the request I suppose.

(In reply to Hin-Tak Leung from comment #0)
>  The problem is that its name starts with "04b03", and
> therefore comes first
>  in a fair number of font matches (don't know the exact criteria, but often
>  enough)... 
fontconfig doesn't do that simple.

This is basically that package specific issue though, I can't say off hand to
make things better so far. please provide more details, which web sites will
picks up this font, screenshot, and your preferrable language/locale.

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[Bug 1349567] avoid using special purpose fonts such as apx-fonts

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1349567



--- Comment #2 from Hin-Tak Leung <htl10(a)users.sourceforge.net&gt; ---
It is often enough to be noticeable, for sure. Anyway, I already added a
section to my own fontconfig and wish not to see it again. For various reasons
I like to have all the fonts installed, but not necessarily used.

In .config/fontconfig/fonts.conf under the <selectfont></selectfont> section:

---
     <rejectfont>
            <pattern>
                 <patelt
name="family"><string>04b03</string></patelt>
            </pattern>
     </rejectfont>
---

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[Bug 1349567] avoid using special purpose fonts such as apx-fonts

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--- Comment #4 from Hin-Tak Leung <htl10(a)users.sourceforge.net&gt; ---
Created attachment 1177022
  --> https://bugzilla.redhat.com/attachment.cgi?id=1177022&action=edit
Screenshot of the popular phoronix web site.

Screenshot of the popular phoronix web site.

The url is at the top - it was a news pieces about cairo as/if you can read
that.

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[Bug 1349567] avoid using special purpose fonts such as apx-fonts

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1349567



--- Comment #6 from Akira TAGOH <tagoh(a)redhat.com&gt; ---
(In reply to Hin-Tak Leung from comment #4)
>  Created attachment 1177022 [details]
>  Screenshot of the popular phoronix web site.
>  
>  Screenshot of the popular phoronix web site.
>  
>  The url is at the top - it was a news pieces about cairo as/if you can read
>  that. 
That works for me. what the language configuration and fonts in firefox do you
have? those text seems requesting the family Segoe UI,Open Sans, Arial,
sans-serif and the result of fc-match with it here is:

$ fc-match 'Segoe UI,Open Sans, Arial, sans-serif:style=bold'
LiberationSans-Bold.ttf: "Liberation Sans" "Bold"

is it different there?

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[Bug 1349567] avoid using special purpose fonts such as apx-fonts

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--- Comment #7 from Hin-Tak Leung <htl10(a)users.sourceforge.net&gt; ---
$ fc-match 'Segoe UI,Open Sans, Arial, sans-serif:style=bold'
OpenSans-Bold.ttf: "Open Sans" "Bold"

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[Bug 1349567] avoid using special purpose fonts such as apx-fonts

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--- Comment #9 from Akira TAGOH <tagoh(a)redhat.com&gt; ---
How about the font settings in firefox? does this issue still persist if you
create another profile and open the problematic url?

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[Bug 1349567] RFE avoid using special purpose fonts such as apx-fonts

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1349567

Raphael Groner <projects.rg(a)smart.ms&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |FutureFeature
          Component|apx                         |fontconfig
            Version|23                          |rawhide
           Assignee|projects.rg(a)smart.ms        |tagoh(a)redhat.com
            Summary|avoid using special purpose |RFE avoid using special
                   |fonts such as apx-fonts     |purpose fonts such as
                   |                            |apx-fonts
           Severity|unspecified                 |low



--- Comment #10 from Raphael Groner <projects.rg(a)smart.ms&gt; ---
I'm more and more going to think we see a feature request here.

There's nothing I can do to apx-fonts in particular, see comment #3. If we
block a font like 04b03 to some applications like browsers, next user may come
around the corner and wonders why it's not possible to use that font.

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[Bug 1349567] RFE avoid using special purpose fonts such as apx-fonts

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--- Comment #11 from Akira TAGOH <tagoh(a)redhat.com&gt; ---
Raphael, we won't do apply any particular font specific changes into the
fontconfig package, we recommend to do have one in each packages instead.
that's why I originally reassigned this to apx. and I think simply rejecting
the apx font in order to avoid this issue isn't a good idea because it is
placed at the accessible dir. the optinos you have for disabling the apx font
from fontconfig is, to 1) move out of fonts dir and have own dir 2) have own
fontconfig config file to reject it.
If apx isn't a customer of fontconfig, 1) looks good to me though, would be
good to ask on the list and get some feedbacks before taking any actions.

Anyway, we surely need more details to reproduce and a reason why it happened.
waiting for a reply to my last comment.

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[Bug 1349567] RFE avoid using special purpose fonts such as apx-fonts

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Raphael Groner <projects.rg(a)smart.ms&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |htl10(a)users.sourceforge.net
              Flags|                            |needinfo?(htl10(a)users.sourc
                   |                            |eforge.net)



--- Comment #12 from Raphael Groner <projects.rg(a)smart.ms&gt; ---
(In reply to Akira TAGOH from comment #11)
… 
>  Anyway, we surely need more details to reproduce and a reason why it
>  happened. waiting for a reply to my last comment. 
+1

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--- Comment #13 from Nicolas Mailhot <nicolas.mailhot(a)laposte.net&gt; ---
I think the problem is misdiagnosed

It has nothing to do with apx itself

The problem is in the way Fedora renders (at least some) open-sans versions

I had the same horribly pixelated effect (font "pixels" as big as some
dingbats), I also attributed it to bitmap fonts, wasted a lot of time hunting
them down with no effect, then finally installed a firefox extension to
identify the font used

To my surprise it pointed opensans and removing the opensans packages from the
system fixed the problem.

Either Fedora misbuilds opensans or something in it horribly confuses the text
stack or firefox

This is on a hidpi system (full hd 13" chromebook)

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--- Comment #14 from Nicolas Mailhot <nicolas.mailhot(a)laposte.net&gt; ---
/var/log/dnf.rpm.log-20160711:302:Jul 09 12:25:50 INFO Erased:
open-sans-fonts-1.10-3.fc23.noarch
/var/log/dnf.rpm.log-20160711:303:Jul 09 12:25:50 INFO Erased:
open-sans-fonts-1.10-3.fc23.noarch

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[Bug 1349567] RFE avoid using special purpose fonts such as apx-fonts

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--- Comment #15 from Hin-Tak Leung <htl10(a)users.sourceforge.net&gt; ---
That's interesting...

$ rpm -q open-sans-fonts
open-sans-fonts-1.10-4.fc24.noarch

I'll try getting rid of it the next time I reboot, and see if it helps. That
sounds plausible, as I do have from comment 7:

$ fc-match 'Segoe UI,Open Sans, Arial, sans-serif:style=bold'
OpenSans-Bold.ttf: "Open Sans" "Bold"


I thought it was the apx font, as it is the only one with that pixellated look
when I opengnome-font-viewer .

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[Bug 1349567] RFE avoid using special purpose fonts such as apx-fonts

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https://bugzilla.redhat.com/show_bug.cgi?id=1349567

Akira TAGOH <tagoh(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pvoborni(a)redhat.com
          Component|fontconfig                  |open-sans-fonts
           Assignee|tagoh(a)redhat.com            |pvoborni(a)redhat.com



--- Comment #16 from Akira TAGOH <tagoh(a)redhat.com&gt; ---
Hm, so I think it isn't a bug then? because it is the expected result according
to what that page requests? or if it is a quality issue in open-sans-fonts, we
may need to do something there. let's reassign this to open-sans-fonts so far.

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--- Comment #17 from Nicolas Mailhot <nicolas.mailhot(a)laposte.net&gt; ---
actually open sans is a vector font. There is a bug somewhere in the text stack
that makes firefox scale bitmaps for open sans instead of using its outlines

That, unless the Fedora open sans build is totally broken

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Hin-Tak Leung <htl10(a)users.sourceforge.net&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|needinfo?(htl10(a)users.sourc |
                   |eforge.net)                 |



--- Comment #18 from Hin-Tak Leung <htl10(a)users.sourceforge.net&gt; ---
Yes, uninstalling open sans fixes the firefox issue. Actually on my system,
there are two identical copies of OpenSans-Bold.ttf . One belongs to
open-sans-fonts and is hooked up to fonconfig, the other belonging to
texlive-opensans isn't.

I also checked with ftview that it is normal-looking - and it did look normal
under gnome-font-viewer. Hence the confusion with apx-fonts.

I suspect it might be the otc integration with firefox 44+ which broke it?

Both the glyf table and the loca table are a bit broken according to the
current Microsoft Font Validator.

Apologies about apx-fonts - OTOH, if it is for a single app's use, it should be
like TeXLive's font arrangement - installed but not hooked into fontconfig.

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Hin-Tak Leung <htl10(a)users.sourceforge.net&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|RFE avoid using special     |broken-look with firefox
                   |purpose fonts such as       |for some web sites when
                   |apx-fonts                   |open-sans-fonts is
                   |                            |installed



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--- Comment #19 from Nicolas Mailhot <nicolas.mailhot(a)laposte.net&gt; ---
(In reply to Hin-Tak Leung from comment #18)

>  Apologies about apx-fonts - OTOH, if it is for a single app's
> use, it should
>  be like TeXLive's font arrangement - installed but not hooked into
>  fontconfig. 
Actually apx is packaged correctly and TeXLive – not

Squirrelling fonts away in apps only results in massive duplication (like
there), various states of font rot, apps that fail miserably with locales not
supported by their private font stash. At least when they are all exposed to
the system problems can be detected and fixed either in the font itself or in
the system text stack.

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[Bug 1349567] broken-look with firefox for some web sites when open-sans-fonts is installed

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Nicolas Mailhot <nicolas.mailhot(a)laposte.net&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gecko-bugs-nobody@fedorapro
                   |                            |ject.org,
                   |                            |jhorak(a)redhat.com,
                   |                            |pjasicek(a)redhat.com
          Component|open-sans-fonts             |firefox
           Assignee|pvoborni(a)redhat.com         |gecko-bugs-nobody@fedorapro
                   |                            |ject.org



--- Comment #20 from Nicolas Mailhot <nicolas.mailhot(a)laposte.net&gt; ---
While the trigger may be in the font file, coping with broken fonts is part of
the text stack mission, and open sans is really too common to be ignored

→ reassigning to firefox, feel free to push it lower if the boog is in one of
the libs it uses

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--- Comment #21 from M. Edward (Ed) Borasky <znmeb(a)znmeb.net&gt; ---
I've got this too ... symptom is that some sites render an ugly all-caps font
with open-sans-fonts installed ... screenshots coming

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--- Comment #22 from M. Edward (Ed) Borasky <znmeb(a)znmeb.net&gt; ---
Created attachment 1231942
  --> https://bugzilla.redhat.com/attachment.cgi?id=1231942&action=edit
site without open-sans-fonts

site is
http://crooksandliars.com/2016/12/officials-say-putin-personally-involved,
Firefox is from Fedora 25

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--- Comment #23 from M. Edward (Ed) Borasky <znmeb(a)znmeb.net&gt; ---
Created attachment 1231943
  --> https://bugzilla.redhat.com/attachment.cgi?id=1231943&action=edit
site *with* open-sans-fonts

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Dawid Zych <dawid.zych(a)yandex.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dawid.zych(a)yandex.com



--- Comment #24 from Dawid Zych <dawid.zych(a)yandex.com&gt; ---
Open Sans font package is broken:
https://bugzilla.redhat.com/show_bug.cgi?id=1332250

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Hin-Tak Leung <htl10(a)users.sourceforge.net&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
         Resolution|---                         |DUPLICATE
        Last Closed|2016-07-06 16:35:41         |2017-03-03 10:20:42



--- Comment #25 from Hin-Tak Leung <htl10(a)users.sourceforge.net&gt; ---
I have re-installed a version of open sans with the corrected fontconfig as
outlined in the discussion in bug 1332250, so this is AFAIK a duplicate of bug
1332250 . Thanks for the heads-up.

*** This bug has been marked as a duplicate of bug 1332250 ***

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