I am installed on Ubuntu 20.04 recently. I can't use it since the fonts display only squares. I can't work properly unless I use the terminal for navigating my folders. I have tried all the solutions to related questions so far. But none of them seems to work.

Here is an image of my desktop:

Here is an image of my desktop

1 Answer 1


You may need to rebuild the font cache. Fortunately, it’s not too difficult:

  1. Open Terminal (if it’s not already open)
  2. Remove the existing font cache:
    rm -rf ~/.cache/fontconfig
  3. Rebuild the cache:
    sudo fc-cache -r -v

This should resolve the issue for you 👍🏻

  • I tried but it did not work.
    – oklm
    Mar 12, 2022 at 11:34
  • @oklm Have you by any chance deleted fonts? And/or somehow changed your home and/or system folders permissions? Mar 12, 2022 at 13:00

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