when you say you have ubuntu 20.04
is it installed on your computer along with windows 10 or are you running it from a live usb? like we talked about over here: Mouse Setup Advice - #8 by Zardoz
when you say you have ubuntu 20.04
is it installed on your computer along with windows 10 or are you running it from a live usb? like we talked about over here: Mouse Setup Advice - #8 by Zardoz