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List:       opensuse-factory
Subject:    Re: firefox does not start after update to Tumbleweed 20220410
From:       Michael Hamilton <michael () actrix ! gen ! nz>
Date:       2022-04-20 5:41:00
Message-ID: 202204201741.01207.michael () actrix ! gen ! nz
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On Wednesday 20 April 2022, Berthold Höllmann wrote:
> Michael Hamilton <michael@actrix.gen.nz> writes:
> 
> > On Wednesday 13 April 2022, Werner LEMBERG wrote:
> >> 
> >> > it crashes only with some specific fonts e.g. Noto Sans, Open Sans,
> >> > ...  Font DeJaVu Sans works
> >> 
> >> Maybe
> >> 
> >>   https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/158
> >> 
> >> helps.  Still waiting for confirmation before applying to FreeType's
> >> git...
> >> 
> >> A temporary alternative would be to build FreeType without SVG
> >> support.
> >> 
> >> 
> >>     Werner
> >>
> >
> > This can't be happening to everyone (firefox crashing) or there would be 
> > more complaints. So why is it happening to some of us?  Are we missing 
> > or using fonts or libraries others are not? 
> >
> > The only clue I have is both firefox and pycharm opened 
> > /usr/share/fonts/truetype/SourceCodePro-Regular.otf and fell over right
> > afterward.
> >
> > If a fix is not imminent, is there are there libraries or fonts I can remove
> > to work around the problem.  I've currently moved /etc/fonts to 
> > /etc/fonts.disabled (but that causes issues with some PDF documents
> > when viewed in okular).
> 
> I uninstalled both packages containing the SourceCodePro font from my
> system (texlive-sourcecodepro-fonts, adobe-sourcecodepro-fonts) and the
> problem seems to be gone for now.
> 
> I really would prefer reinstalling the packages after an upstream bugfix
> solves the problem.
> 
> Berthold

Thanks Berthold, that's the hint I needed to fix my own desktop.  Rather 
uninstall the font package, I've added the following rejectFont to fontconfig 
in /etc/fonts/local.conf

 <selectfont>
    <rejectfont>
        <pattern>
            <patelt name="family" >
                <string>Source Code Pro</string>
            </patelt>
        </pattern>
    </rejectfont>
 </selectfont>

The family string was retrieved using fc-scan:

% fc-scan /usr/share/fonts/truetype/SourceCodePro-Regular.otf  --format='%{family}\n'

The above was all based on the docs at:
https://wiki.archlinux.org/title/font_configuration

That's solved the problem until the actual fix gets released.

Michael
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