Ubuntu on Orange Pi 3 LTS - unable to switch languages

tap1956

In the official distribution for Orange Pi 3 LTS, I installed the Russian language, that's what locale -a gives:

1. root@orangepi3-lts:/etc# locale -a
   
2. C
   
3. C.utf8
   
4. en_AG
   
5. en_AG.utf8
   
6. en_AU.utf8
   
7. en_BW.utf8
   
8. en_CA.utf8
   
9. en_DK.utf8
   
10. en_GB.utf8
    
11. en_HK.utf8
    
12. en_IE.utf8
    
13. en_IL
    
14. en_IL.utf8
    
15. en_IN
    
16. en_IN.utf8
    
17. en_NG
    
18. en_NG.utf8
    
19. en_NZ.utf8
    
20. en_PH.utf8
    
21. en_SG.utf8
    
22. en_US.utf8
    
23. en_ZA.utf8
    
24. en_ZM
    
25. en_ZM.utf8
    
26. en_ZW.utf8
    
27. POSIX
    
28. ru_RU.utf8
    
29. ru_UA.utf8

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tumanovalex

I have the same result. I also installed gnome-tweaks and set language switching by Alt+Shift, but language switching does not occur in the graphical editor. I would like to keep the English interface, but be able to enter Russian text. I have the following questions:
1. Only en_US.utf8 and ru_RU.utf8 are commented out in locale-gen, where do other languages come from? How to remove them?
2. Why does language switching not work? What needs to be done to make it work.

tap1956

It turned out like this:
orangepi-config -> set timezone
orangepi-config -> keyboard - replace en with us
Settings-Language support-add Russian language
Settings-Keyboard - add a Russian keyboard layout and select the layout switch.
Check in Mousepad.
It worked for me.