Have you had a look in the BIOS to see if the mouse pad on the laptop is enabled? There is normally a setting in there where you can disable it. There might also be a setting for the PS2 port.
Hope this helps
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How to get WWDC 2017 tickets
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.