Comment 29 for bug 1814481

I was having the same issue on the Vissles 84 mech keyboard, but

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1814481/comments/19

mostly fixed it. F11 & F12 don't seem to be affected by the fix, they still act as multimedia volume keys regardless of whether I hold the fn key or not.

To clarify, my keyboard is also bluetooth but I use it wired due to hardware issues on the linux PC. I am a VERY recent Linux user. My problem was pretty much the same as OP: no fn keys, they only registered as multimedia even with the fn key held. No fix in BIOS. I used the same keyboard on a windows computer and it worked fine.

Anyway, thanks! Was nervous since I don't know too much about the command line yet, but it seems mostly fixed now.