I have just installed Elementary OS on my Xiaomi Mi Air 12 which has a synaptic touchpad. The mouse pointer is shaky and imprecise. I've found a post by two users offering fixes for my issue but none of them works.
When I try to
sudo apt-get install xserver-xorg-input-synaptics it says I miss
xserver-xorg-core. If I try to install core the terminal warns me that some packages will be removed. When I go Y and reboot my keyboard and my mouse don't work anymore.