Double tap and drag isn't working on touchpad

Question

Hey everyone!  First time posting here so apologies if my post sucks! :P
Normally on a touchpad, you can double tap, hold your finger down on the second tap, and move the finger around to drag windows and highlight text.  This doesn't seem to work on my touchpad.
Instead, what seems to be happening is when I tap once, at the point when I release the touchpad the pointer changes its icon to the dragging icon (The one that looks like a hand grabbing something).  However, regular double tapping works fine e.g. when I want to maximize a window or select a paragraph of text.
Some information about my setup:
I'm running arch on a Dell Chromebook 11
I'm using CInnamon DE. 
It seems that the settings in the Cinnamon config override the settings in my /etc/X11/xorg.conf.d/<touchpad settings.conf>.
Case in point, I add the following lines into my config:
        Option          "TapButton1" "1"
        Option          "TapButton2" "2"
        Option          "TapButton3" "3"
and disable the "Tap to click" option using Cinnamon's GUI settings tool.  If I do this, tapping does not register as a click.
I have tried the following:
Set the TapAndDragGesture boolean to true.  This doesn't seem to help.
Disable tap to click in Cinnamon's settings, thinking that perhaps the touchpad was recognizing a single tap as two taps.
Messed around with the MaxTapTime and MaxDoubleTapTime settings.
I can't seem to pinpoint the problem... is there some settings I am overlooking?

Answer 1

Here check this page https://wiki.archlinux.org/index.php/Touchpad_Synaptics.
It says the following.
$ synclient PalmDetect=1 (to enable palm detection)
$ synclient TapButton1=1 (configure button events)
$ synclient TouchpadOff=1 (disable the touchpad)