Computer not waking from sleep properly

[GRoston]

When I walk away from my computer for any length of time, I put it to sleep. When I return and jiggle the mouse, sometimes it wakes up right away. However, other time, the screen does not turn on and I see that the machine is no longer asleep (disk light flashing). If I use another machine and remote desktop to my machine, the screen comes right on.

The last time this happened, I look at the Task Manager, via remote desktop, and the only thing that jumped out at me as being different is that I saw an extra instance of atieclxx.exe, file version V27.20.20903.8001 / product version 6.14.11.1290, AMD External Events Client Module from 11 May 2021, running. Once I logged back in, that instance was gone.

Note that I have removed some unneeded stuff from my computer, run MaleWareBytes, etc., and I am quite certain that my machine is clean. What on earth is going on and more importantly, can I do anything to avoid this issue?

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More data: The issue seems not to be related to going into Standby Mode, but rather the screens turning off. This Windows 7 black screen on computer unlock - Windows Client | Microsoft Learn suggested that I disable the 'Desktop Window Manager Session Manager service' - let's see what happens.

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I updated (I believe) the video drivers today. The first waking from standby (after several reboots, nothing left running, and I only ran Excel and Outlook) took about 30 seconds.