I found this workaround:
1. Create file: /usr/share/gdm/dconf/01-tap-to-click
2. Contents: [org/gnome/desktop/peripherals/touchpad] tap-to-click=true
3. Restart GDM or restart computer.
Ubuntu should provide this file or offer a more friendly GUI for this.
I found this workaround:
1. Create file: /usr/share/ gdm/dconf/ 01-tap- to-click
2. Contents: desktop/ peripherals/ touchpad]
[org/gnome/
tap-to-click=true
3. Restart GDM or restart computer.
Ubuntu should provide this file or offer a more friendly GUI for this.