Hi,
I do not have touchpad settings in the mouse settings GUI dialog. I tried turning off tap to click using gconf editor but it makes no difference ...
I tried rebooting. Not sure what make the Asus touchpad is, but its not Synaptics.
There must be a way to turn this off. Any ideas ?
What version of Ubuntu MATE are you using? Versions before 17.10 use the synaptics driver — despite the name, it’s used for all touchpads, not just synaptics brand — but 17.10 uses the newer libinput by default. Libinput support is still new in MATE. There are ways to configure it manually, or as a workaround, you can install the synaptics driver:
sudo apt install xserver-xorg-input-synaptics
If you are not on 17.10, then I’m not sure 
You know I must have discounted a dozen guides about how to do what I want but discounted them because I assumed synaptics was only for that make ! Doh !
So. I’m on 17.10. Been using “xinput list-properties device” as described on this page - https://wiki.archlinux.org/index.php/Libinput and I can’t see a tap to click property listed so it seems I should switch to synaptics.
EDIT: Installed and restarted but I get …
michael@michael-T100TAF:~$ synclient -l
Couldn’t find synaptics properties. No synaptics driver loaded?
Anyone ? Apparently according to the following thread, there is no driver support for this touchpad. It’s detected as a default USB/HID mouse, hence no access to other functions.
“Disabling tap to click on Asus T200TA” -
http://forums.debian.net/viewtopic.php?f=7&t=132241
I posted “Really no driver support for Asus T100 full touchpad functions ?” - https://ubuntuforums.org/showthread.php?t=2377027&p=13708889#post13708889