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I tried to reproduce this w/o success on Linux Mint 20 (based on Ubuntu
20.04 LTS) using FLTK 1.4 (Git) and either bare Xft or Pango. I could
always see the underscores.
I looked around to figure out which kind of hinting applies to my system
but I'm not a Linux expert and I'm mostly using the default setup. Do you
know of any function/program that can show me the active font hinting type,
or can you give clear advice how (in which file) to edit what you described
"This X ressources should make the problem visible on systems that work
correctly by default"?
FTR: I looked around in /etc/fonts and I can only find:
/etc/fonts/conf.d/10-hinting-slight.conf:8: <description>Set hintslight to
/etc/fonts/conf.d/10-hinting-slight.conf:17: <edit name="hintstyle"
which seems to indicate that on my system "hintslight" is active despite
the fact that the fonts are shown correctly.
(1) Does this STR still apply, i.e. does it still require any actions?
(2) If yes, what could we do? Is there a way to change this setting on the
fly in FLTK applications, or what are your suggestions?
Note: if these questions are not answered or if there is no sensible
suggestion within a reasonable time (7-14 days) I'll have to close this
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