Using 20.04, I installed Gnome Tweaks to use the L Alt key in place of R Alt key to access 3rd level character in a modified keyboard (á, ç, ñ, é, è) by editing the xbd/us file.

When I go in Tweaks “Additional Layout options”, it gives me only 2 options:

  • “Number 4 key when pressed in isolation”,
  • “Number 9 key when pressed in isolation”.

In my other similar machine, I get a whole list of choices.

I reinstalled Tweaks a couple of times, to no avail.

The only difference between the 2 is that the other one have a regular US keyboard, not modified.

Thanks for any input!


I found the answer to my question ! I just had to turn off "Show extended input sources" and bingo, I got the whole list for 3rd level character key.

Merry Christmas to all.

  • I could reproduce that behavior, but to me it appears to be a gnome-tweaks bug. Can't see a reason why the show-all-sources option would have anything to do with it. – Gunnar Hjalmarsson Dec 4 '20 at 19:40
  • Reported it as bug #1906887. – Gunnar Hjalmarsson Dec 4 '20 at 23:10

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