09-28-2017 01:37 PM
Two days ago I installed the Windows 10 cumulative update, and the Lenovo Companion September updates for the power management driver, hotkey features, and BIOS.
This is with Win10 Pro, UltraDock, and DP monitor.
Since then my machine no longer wakes up, or at least it wakes up, but the screen stays black, the notebook screen is black, the DP screen turns on but stays black.
I have to hold power to do a cold boot.
Any ideas which update is the casue, and how I recover?