Yes, and now I can add this solution to the guide. So, thank you for trying to find the problem when most people would have given up on it and demand a refund. Have fun with the game!
I just wanted to follow up and point out that the issue has been resolved with Catalyst Driver 13.4. I am now able to play the game without having to decrease the DPI scaling.
Cheers!
Thank you SadPanda for the update. AMD is known to have OpenGL issues all the time.
Problem H at Amnesia Troubleshooting guide updated.
Problem G at Penumbra Troubleshooting guide updated.