LINUX (Keyboard Error)

Hi 2 all.
I was try install linux to my Chuwi minibook 16/512/8100Y
The installation finished completely.
I tryed to install the last versions of Debian and Ubuntu (20 LTS)
The’re most devices working fine. But keyboard isnt work on both variants.
Keyboard work in console and grub, but doesn’t in Xorg.
I tryed to install xserver-xorg-input-all and xserver-xorg-input-libinput but this isn’t resolve my issue.
i was Try differents variants in Universal access to enable disable Slow key e.t.c
The same results.
Any one have things or solution?
(On Windows keyboard work without any troubles)

One more info.
Specifical KEY like Fn+Tab (Britnes) is worked.

Having the same problem with a brand new MiniBook I received today. Keyboard works fine in BIOS/grub/console, but not as soon as computer is booted to login screen. External keyboard via USB works. I haven’t found any solution yet.

I posted a possible solution here: Keyboard not working in Linux