Interface displays without font

 Hello,

       I want to know why it displays like this. The interface font can't shows and they are replaced with little blocks. So what can I do for this? How to change it?

Comments

  •  This is usually caused by a font type missing or corrupted in the OS itself. If you have ubuntu you could try running 

    sudo apt install ttf-ubuntu-font-family 

    You could also try a different type font on your OS. 




  •  This is usually caused by a font type missing or corrupted in the OS itself. If you have ubuntu you could try running 

    sudo apt install ttf-ubuntu-font-family 

    You could also try a different type font on your OS. 





    Thank you, but the install ttf-ubunut-font-family did not work well. I change my OS fonts to English, it works. 
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