Linux mint 触摸板不能用 | The touchpad is not working

Mint 官方建议安装synaptics, but it is not working on my laptop.

So I got another solution:

　　sudo apt install  --install-recommends linux-generic-hwe-20.04

　　then,

　　sudo apt purge xserver-xorg-input-synaptics

　　sudo rm -f /etc/default/grub.d/i8042.cfg

　　sudo update-grub

 

Reboot.