Do everyting below as root.
Check /etc/X11/xorg.conf if you have turned SHMConfig on.
Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "HorizEdgeScroll" "0"
Option "SHMConfig" "on"
EndSection
If it’s not here, just add the line.
Then write a simple bash script to disable Touchpad into /etc/init.d
#!/bin/bash synclient TouchpadOff=1
If you would like to turn it off while you type, use the following script
#!/bin/bash syndaemon -i 1 -d
You can name your script as you wish, I named “touchpad-disable”.
Also, you have to change the script’s status to “Run no Startup” under the Service Manager.
Service Manager is in the KDE Components under System Settings.
Finally, restart your computer.