Screensaver does not offer option to use any photos
[[Note: if you see a spinning "Beachball" it may be that your photo library is quite large so the processor may need time to display everything.  You may find that placing photos you wish to display in a folder stored outside of iPhoto or the Photos app will improve performance.]]

Assuming you have photos in a folder or imported into the Photos app, this procedure should help.


Go to System Preferences
Select Desktop &amp; Screen Saver
Select the Screen Saver tab
Choose one of the photo type screen saver options such as Floating or Reflections
From the Source pop-up menu select your source from Photos or a folder with your pictures by selecting Choose Folder... or Photo Library...