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Recently I installed Ubuntu 20.04 in a computer and Lyx 2.3.4.2. The automatic "on the fly" spell checking is not working even though I have activated it, as seen below:

enter image description here

Any suggestion?

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  • Does non-on-the-fly spellchecking work? e.g., if you go to Tools > Spellchecker. Under "Spellchecker" is there an option to choose "Hunspell"? If so, does that work? How did you install LyX? Was it with the PPA or from the Ubuntu repos or did you compile it?
    – scottkosty
    May 14, 2020 at 15:58
  • When I try to explicitly use the spellchecker it instantly says that there are no errors in the whole document, even if there are, and it closes. I installed Lyx doing sudo add-apt-repository ppa:lyx-devel/release and then sudo apt install lyx.
    – user171780
    May 14, 2020 at 16:09
  • 2
    You have installed Ubuntu and LyX, but have you installed enchant?
    – Fran
    May 14, 2020 at 16:30
  • Good point. After sudo apt install enchant now it is working. In the past I had never have to install it separately.
    – user171780
    May 14, 2020 at 16:47
  • Great! Seems like a minor bug in LyX. Ideally it would give a more informative error of "can't find enchant" or something like that.
    – scottkosty
    May 14, 2020 at 18:15

1 Answer 1

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As Fran commented in my question, I only had to install enchant. The solution was:

sudo apt install enchant

and now it is working.

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