In Gnome Shell, try this (worked for me):
Install package 'gnome-tweak-tool' and run it ("Tweak Tool"). Then try the different options in: Keyboard & Mouse > Touchpad > Click Method
I found the default of "Default" didn't work. But changing it to "Fingers" does.
In Gnome Shell, try this (worked for me):
Install package 'gnome-tweak-tool' and run it ("Tweak Tool"). Then try the different options in:
Keyboard & Mouse > Touchpad > Click Method
I found the default of "Default" didn't work. But changing it to "Fingers" does.