Photos for Screen Saver
Why doesn't the screen saver access photos application on my MacBook Pro
MacBook Pro 13″, macOS 10.15
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You should be able to use your Photos Library in the screensaver, if you enable the Photos Library as your System Photo Library. And if the library is on a suitable volume.
- To make the library your System Photo Library open Photos, the go to Photos > Preferences > General.
- Then click "Use as System Photo Library", if it is not greyed out.
Then Relaunch Photos and System Preferences and try again.
To use the Photos Library,
- open "System Preferences > Desktop&Screensaver",
- click a Slideshow screensaver template in the left pane
- click "Source" in the right pane and scroll down to "Photo Library".
- Wait (it can take several minutes) for your Photos library to appear and to show the albums inside.
- Select the album you want to use.
You can only use photos, that have been downloaded from iCloud, if your library is an iCloud Photos Library.