This issue is happening on my 2012 MBP 13inch as well.
I am dual booting OSX and Ubuntu 16.04
The issue does not manifest itself when booted into OSX - only Ubuntu.
How to prevent: Remove the power connector. When removed, the trackpad works normally.
How to reproduce: Plug in the power connector. After connected for several seconds, the trackpad begins to right-click randomly and/or initiate the alt-tab command.
This issue is happening on my 2012 MBP 13inch as well.
I am dual booting OSX and Ubuntu 16.04
The issue does not manifest itself when booted into OSX - only Ubuntu.
How to prevent: Remove the power connector. When removed, the trackpad works normally.
How to reproduce: Plug in the power connector. After connected for several seconds, the trackpad begins to right-click randomly and/or initiate the alt-tab command.