Solution to font garbled characters in flash in Ubuntu

Solution to font garbled characters in flash in Ubuntu
Edit the 49-sansserif.conf file under/etc/fonts/CONF. D.
Sudo gedit/etc/fonts/CONF. d/49-sansserif.conf

<? XML version = "1.0"?>
<! Doctype fontconfig System "fonts. DTD">
<Fontconfig>
<! --
If the font still has no generic name, add sans-serif
-->
<Match target = "pattern">
<Test qual = "all" name = "family" compare = "not_eq">
<String> sans-serif </string>
</Test>
<Test qual = "all" name = "family" compare = "not_eq">
<String> serif </string>
</Test>
<Test qual = "all" name = "family" compare = "not_eq">
<String> monospace </string>
</Test>
<Edit name = "family" mode = "append_last">
<String> sans-serif </string> // you can change sans-serif to sans.
</Edit>
</Match>
</Fontconfig>

Change sans-serif in red bold to sans.