Hi TenForumers.
Few days ago I found some strange warnings concerning the display driver (event ID 4101):
"Display driver amdkmdap stopped responding and has successfully recovered".
After trying this and that with no avail, I noticed these warning were raised when I was using my Internet browser (Firefox):
sometimes my browsing experience suffered of occasional "blocks" of 1-2 secs (with a Warning 4101 coming out in my event viewer).
I turned off hardware acceleration on my browser's settings page and I eventually got rid of those warnings.

I'm writing this post hoping it could be useful to someone with the same problem.