On Sat, 8 Nov 2025 20:59:29 +0000
Paolo Vincenzo Olivo <vins%NetBSD.org@localhost> wrote:
> Since I don't care about web browsing on such an old machine, I
> gave up on this before trying to delving deeper into the problem, but I
> wouldn't mind seeing it fixed with the cooperation of other users here.
>
> Regards,
> Paolo
Not related to sparc64, but I've experienced somewhat similar issue on
Linux with web browsers using Google chromium engine. This only occurred
when I disabled font anti-aliasing, enabling it again resolved the
issue. No such issues with Firefox though.
You can try playing around with settings in .fonts.conf and see if
that helps. Below is what I normally use on Linux:
$ cat .fonts.conf
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "urn:fontconfig:fonts.dtd">
<fontconfig>
<match target="font">
<edit name="antialias" mode="assign"><bool>true</bool></edit>
<edit name="autohint" mode="assign"><bool>true</bool></edit>
<edit name="hinting" mode="assign"><bool>true</bool></edit>
<edit name="hintstyle" mode="assign"><const>hintfull</const></edit>
<edit name="rgba" mode="assign"><const>none</const></edit>
<edit name="lcdfilter" mode="assign"><const>lcdnone</const></edit>
<edit name="cff:no-stem-darkening" mode="assign"><bool>false</bool></edit>
<edit name="autofitter:no-stem-darkening" mode="assign"><bool>false</bool></edit>
</match>
</fontconfig>