The new driver installed automatically with Windows Updates on my Thinkpad Tablet 2. It works great and has solved the wake-up problem completely. Lenovo has published a BIOS update (ver. 1.32) that I recommend installing as well. The BIOS update solves a battery charging problem (which I experienced) and includes compatibility for Windows 8.1. Right now my Tablet 2 is running as I expect it to and it has no issues at all.
Thank you Intel for the Display driver update.
Roy 