Hamzeh,

Hamzeh Nasajpour 写道：
> Also I installed `fontconfig` package, I can't see 
> `font-ibm-plex` or other installed font with `fc-list` command. 

Have you run ‘fc-cache -r’ yet?

If you have and your fonts still don't show up, check whether 
/var/cache/fontconfig exists, and delete it if it does.

Kind regards,

T G-R