BackgroundĪs a small piece of background to this general problem, what’s probably happening is that there is a process (application) running on your Mac that’s preventing your screensaver from starting. Note: If you don’t care what’s causing the problem and you just want it to go away, you can try rebooting your Mac at this time. The rest of this tutorial explains the process of troubleshooting the problem. When we did that the AirPlay process is automatically restarted, but when it starts running again it doesn’t interfere with the screensaver. The solution to her particular problem was to kill the AirPlay process running on her Mac. From what I can tell, after she did that AirPlay doesn’t automatically shut itself off, and it was preventing the screensaver from starting. The short story of the problem (and solution) is that she had used Apple’s AirPlay to mirror her computer screen to her AppleTV. The same problem happened to a friend, and after a lot of research, we were able to work through it to get her Mac screensaver working again. If you have a problem where your Mac/ macOS screensaver won’t start, I hope to be able to help you in this article.
