Sorry to bump an old thread, but I've encountered this issue as well. In my case I was very careful not to press any extra buttons while doing the telekinesis tutorial, and the issue still happened. At this point, I decided to try playing the section of the game on a different computer (I have it on my laptop as well as my main gaming machine) and surprisingly enough, it still occurred on an entirely different system with the same save. I was able to work around the issue by saving the game, although the screen was black, the escape menu would still come up and I could save the game. After that I loaded from the save and the black screen was gone.