Touchpad Synaptics Tapping issue

If you have issues with tapping function or scrolling function with your touchpad, then you can type the following in terminal to fix it

Code:

modprobe -r psmouse
modprobe psmouse proto=imps

to make the changes persistant create a file under /etc/modprobe.d with anyname.conf

Code:

options psmouse proto=imps

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modprobe is a Linux program originally written
 by Rusty Russell and used to add a loadable kernel module (LKM) to the 
Linux kernel or to remove a LKM from the kernel. It is commonly used 
indirectly: udev relies upon modprobe to load drivers for automatically detected hardware.