How to avoid the touchpad to fuck up when you're typing.

xenial-touchpad.sh

# Thanks to : Jim Basilio http://blog.jimbasilio.me/2015/10/libinput-and-ubuntu-15-10/
#             Peter Hutterer http://who-t.blogspot.fr/2016/04/why-libinput-doesnt-have-lot-of-config.html

sudo apt update
sudo apt install xserver-xorg-input-libinput

cd /usr/share/X11/xorg.conf.d/
sudo mv 50-synaptics.conf ~/synaptics.conf.bak
sudo echo '# Match on all types of devices but tablet devices and joysticks
Section "InputClass"
        Identifier "libinput pointer catchall"
        MatchIsPointer "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection
Section "InputClass"
        Identifier "libinput keyboard catchall"
        MatchIsKeyboard "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection
Section "InputClass"
    Identifier "libinput touchpad catchall"
    MatchIsTouchpad "on"
    MatchDevicePath "/dev/input/event*"
    Driver "libinput"
    Option "Tapping" "True"
    Option "DisableWhileTyping" "True"
EndSection
Section "InputClass"
        Identifier "libinput touchscreen catchall"
        MatchIsTouchscreen "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection' > 90-libinput.conf

# Reboot here, now you shouldn't be able to move using the touchpad while typing.