Hi Michael, That sounds reasonable to me! I've been offline for a month, but I'll look into resolving your suggestion in the coming weeks.
Marlen On Mon, Sep 28, 2026 at 2:05 AM Michael Kiermaier <[email protected]> wrote: > Package: fonts-nerd-symbols > Version: 3.4.0+dfsg1-1 > Severity: normal > > Dear Maintainer, > > I am using Debian testing. Running neovim in KDE Konsole with "Hack" as > the selected font, I observed that certain Nerd Font symbols are > rendered as unrelated glyphs, although the package fonts-nerd-symbols is > installed. > > For example, the following test renders four unrelated glyphs instead of > the expected icons: > > printf 'Terminal: \uf120 Folder: \uf07b GitHub: \uf09b Linux: \uf17c\n' > > The command > > for cp in f120 f07b f09b f17c; do > printf 'U+%s -> ' "$cp" > fc-match "Hack:charset=$cp" --format='%{family} | %{file}\n' > done > > produces the output > > U+f120 -> UnDotum,은 돋움 | > /usr/share/fonts/truetype/unfonts-core/UnDotum.ttf > U+f07b -> UnDotum,은 돋움 | > /usr/share/fonts/truetype/unfonts-core/UnDotum.ttf > U+f09b -> UnDotum,은 돋움 | > /usr/share/fonts/truetype/unfonts-core/UnDotum.ttf > U+f17c -> UnDotum,은 돋움 | > /usr/share/fonts/truetype/unfonts-core/UnDotum.ttf > > Hence, for all four code points, Fontconfig selects the UnDotum font. > > The expected glyphs are available in the FontAwesome family provided by > the package fonts-font-awesome. As I understand the packaging changes > for version 3.4.0+dfsg1-1, icon sets already provided by other Debian > packages were omitted when rebuilding the Symbols Nerd Font, see > https://github.com/klondikemarlen/fonts-nerd-symbols/issues/22 > > If these glyph sets are intentionally supplied by separate Debian > packages, I would expect fonts-nerd-symbols either to depend on or > recommend the relevant packages and to configure them as suitable > fallbacks. > > The generic Fontconfig fallback list in > > /etc/fonts/conf.d/65-nonlatin.conf > > includes UnDotum, whereas FontAwesome is not included in the fallback > chain. > > > As a local workaround, I added a user Fontconfig rule that places > FontAwesome after Hack in the preferred family list: Create a file > > ~/.config/fontconfig/conf.d/99-hack-fontawesome.conf > > with the content > > <?xml version="1.0"?> > <!DOCTYPE fontconfig SYSTEM "fonts.dtd"> > <fontconfig> > <alias> > <family>Hack</family> > <prefer> > <family>FontAwesome</family> > </prefer> > </alias> > </fontconfig> > > > After rebuilding the font cache via fc-cache -f > and restarting Konsole, all four icons were rendered correctly. > > > Could the package's Fontconfig configuration be extended so that the > fonts intended to replace omitted glyph sets are selected before > unrelated fallback fonts? If additional Debian font packages are > required, should fonts-nerd-symbols recommend or depend on them? > > Thank you. > > > -- System Information: > Debian Release: Debian GNU/Linux forky/sid > Architecture: amd64 > Kernel: Linux 7.2.6+deb14-amd64 > Locale: LANG=en_US.UTF-8 > Versions of relevant packages: > ii fontconfig-config 2.17.1-5 > ii fonts-font-awesome 7.3.0+dfsg-1 > ii fonts-hack 3.003-5 > ii fonts-nerd-symbols 3.4.0+dfsg1-1 > ii fonts-unfonts-core 1:1.0.2-080608-22 > ii konsole 4:26.04.0-1 > ii libqt6gui6:amd64 6.10.2+dfsg-16 >
