Yes, it appears I'm still using the version from
https://launchpad.net/~alexlarsson/+archive/ubuntu/flatpak. Should I
report the bug there instead?
Here is the console output you asked for:
$ apt policy flatpak
flatpak:
Installed: 1.3.1-flatpak1~cosmic
Candidate: 1.3.1-flatpak1~cosmic
Version table:
*** 1.3.1-flatpak1~cosmic 100
100 /var/lib/dpkg/status
1.3.1-flatpak1~bionic 400
400 http://ppa.launchpad.net/zorinos/stable/ubuntu bionic/main amd64
Packages
1.2.4-1 500
500 http://us.archive.ubuntu.com/ubuntu disco/universe amd64 Packages
$ gtk-query-settings |grep font
gtk-font-name: "Roboto 11"
$ flatpak run --command=gtk-query-settings org.gnome.Calculator |grep font
gtk-font-name: "Roboto 11"
gtk-fontconfig-timestamp: 0
When actually running a flatpak app from the terminal, this is the
output:
$ flatpak run org.gnome.Calculator
(gnome-calculator:2): Pango-WARNING **: 18:41:43.437: failed to create
cairo scaled font, expect ugly output. the offending font is 'Roboto 11'
(gnome-calculator:2): Pango-WARNING **: 18:41:43.438: font_face status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:43.438: scaled_font status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:43.438: shaping failure,
expect ugly output. shape-engine='PangoFcShapeEngine', font='Roboto 11',
text='●'
(gnome-calculator:2): Pango-WARNING **: 18:41:43.479: failed to create
cairo scaled font, expect ugly output. the offending font is 'Roboto 11'
(gnome-calculator:2): Pango-WARNING **: 18:41:43.479: font_face status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:43.479: scaled_font status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:43.864: failed to create
cairo scaled font, expect ugly output. the offending font is 'Roboto
Medium 11'
(gnome-calculator:2): Pango-WARNING **: 18:41:43.864: font_face status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:43.864: scaled_font status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:43.883: failed to create
cairo scaled font, expect ugly output. the offending font is 'Roboto
Medium 11'
(gnome-calculator:2): Pango-WARNING **: 18:41:43.883: font_face status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:43.883: scaled_font status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:43.884: shaping failure,
expect ugly output. shape-engine='PangoFcShapeEngine', font='Roboto
Medium 11', text='The quick brown fox jumps over the lazy dog.'
(gnome-calculator:2): Pango-WARNING **: 18:41:44.067: failed to create
cairo scaled font, expect ugly output. the offending font is 'Roboto
Medium Italic 11'
(gnome-calculator:2): Pango-WARNING **: 18:41:44.067: font_face status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.067: scaled_font status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.067: shaping failure,
expect ugly output. shape-engine='PangoFcShapeEngine', font='Roboto
Medium Italic 11', text='e'
(gnome-calculator:2): Pango-WARNING **: 18:41:44.125: failed to create
cairo scaled font, expect ugly output. the offending font is 'Roboto
Medium Italic 9.166015625'
(gnome-calculator:2): Pango-WARNING **: 18:41:44.125: font_face status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.125: scaled_font status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.125: shaping failure,
expect ugly output. shape-engine='PangoFcShapeEngine', font='Roboto
Medium Italic 9.166015625', text='y'
(gnome-calculator:2): Pango-WARNING **: 18:41:44.143: failed to create
cairo scaled font, expect ugly output. the offending font is 'Roboto
Medium 9.166015625'
(gnome-calculator:2): Pango-WARNING **: 18:41:44.143: font_face status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.143: scaled_font status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.143: shaping failure,
expect ugly output. shape-engine='PangoFcShapeEngine', font='Roboto
Medium 9.166015625', text='−1'
(gnome-calculator:2): Pango-WARNING **: 18:41:44.177: failed to create
cairo scaled font, expect ugly output. the offending font is 'Roboto
15.400390625'
(gnome-calculator:2): Pango-WARNING **: 18:41:44.177: font_face status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.177: scaled_font status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.194: failed to create
cairo scaled font, expect ugly output. the offending font is 'Roboto
15.400390625'
(gnome-calculator:2): Pango-WARNING **: 18:41:44.195: font_face status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.195: scaled_font status
is: file not found
(gnome-calculator:2): Pango-WARNING **: 18:41:44.195: shaping failure,
expect ugly output. shape-engine='PangoFcShapeEngine',