Hi,
We would like to know if there were multiple apps left running in the background before the Surface Pro 3 went to sleep. If so, can you try to close all apps before leaving it to go on sleep mode and check if the issue persists? This will help us determine
what's really causing it. In the meantime, we suggest that you uninstall and re-install the keyboard driver in
Device Manager and see if that helps.
Let us know the results.
Hello Brian, pardon the delay. I have been attempting to generate repeatable data. Sadly those resolution steps did not work.
Surface Type Cover Filter Driver
3/23/2017
1.1.504.0
Microsoft Windows Hardware Compatibility Publisher
Does not fix the issue if removed completely. The driver was reacquired for re-installation via online auto detect and the Surface Pro Firmware/Driver pack available on Microsoft's site.
The only foreground apps running are a web browser, Firefox. There are numerous Windows/background tasks, which I won't name since they are so numerous. There are also a few background daemons related to virtualization applications I use, but these were
not in use or launched and are fully updated.
A "tasklist" from command prompt revealed nothing out of the ordinary, for my machine. If you do need a full list of processes, active and background, I can oblige but I am fairly certain this is not the cause. (This problem affects numerous other users
of a Type 4 Fingerprint cover on a Pro 3, and I am almost certain they do not use the same software suites I do.)