A client has a Lenovo Hexlix with Windows 8.1 http://shop.lenovo.com/us/en/tablets/thinkpad/thinkpad-helix/
with attached is a dock, ThinkPad USB 3.0 Dock (0A33970) with two external monitors.
In the morning, when the computer is plugged into the dock, the external monitors will not engage. You have to restart in order for the external monitors to kick in. If I remember correctly, I can unplug the dock from the computer, wait a short time and plug the dock back to the computer and it works. It is after the computer has been off the dock for the night and trying to start in the morning.