I am using Arch Linux, and recently I found that my fonts are little different after upgrade.

In DBeaver, the monospace font shows this:

This causes the monospace doesn’t follow the same width. And I found that, the default “Monospace” doesn’t use DejaVu Sans Mono anymore after the recent upgrade.

After looking some solutions, I tried edit ~/.conf/fontconfig/fonts.conf according to this this one.

[code lang=text] monospace DejaVu Sans Mono [/code]

When downloading the files contain Chinese or Japanese characters using JDownloader in Linux (for my case, Arch Linux), I found that all the Chinese or Japanese characters are shown with boxes. There are a lot of suggested solutions I found from Internet, especially adding !font=Dialog to the language file. I also tried to edit the fontconfig.properties file, adding path to JAVA_FONTS, etc. But all the solutions do not work.

So, my solution is, just change the user interface style to non-Synthetica style, eg, Substance or Light. Both types of style work well, allow me to see the file names with correct characters. Problem solved.