Touch screen unresponsive after sleep

After my tablet sleeps, sometimes only when sleeping for a long time like over night but sometimes a much shorter amount of time, the touch screen is unresponsive after tapping the power button to wake it up and I can’t get off the lock screen. I searched for info on this and found a lot of posts with this issue from a year ago. nVidia supposedly found and fixed the issue. However, I’m running a build I created with the AOSP code supplied by nVidia for the tablet and it would appear that the fix didn’t get applied to that code base. The code was obtained here https://developer.nvidia.com/shield-open-source.

If any nVidia staff are reading these posts, will you please make sure that the fix is applied to the open source code you provide.