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            Recent macOS Update Fixes Multi-Display Screen Saver Bug

   Adam Engst

   When we covered the update to macOS 13.3 Ventura in '[1]Apple Releases
   iOS 16.4, iPadOS 16.4, macOS 13.3 Ventura, watchOS 9.4, tvOS 16.4, and
   HomePod Software 16.4' (27 March 2023), [2]Howard Rosenman commented
   that the Aerial screen saver would no longer show on both of the
   displays attached to his M2 Mac mini. He was right, and others
   confirmed that the problem afflicted both Apple and third-party screen
   savers, such as [3]Aerial and [4]Electric Sheep.

   I don't know when Apple fixed the bug because the company didn't see
   fit to mention it in any release notes. Regardless, in macOS 13.4.1,
   the screen saver again works properly with multiple displays. If, like
   me, you switched your screen saver module because it wouldn't show on
   all your displays, you can now return to your preferred approach in
   System Settings > Screen Saver.

   Alas, Apple didn't tackle the more complex problem of getting the
   screen saver to display edited or rotated photos rather than the
   original image (see '[5]macOS Photo Screen Savers Still Don't Properly
   Display Rotated or Edited Images,' 5 March 2023).

References

   Visible links
   1. https://tidbits.com/2023/03/27/apple-releases-ios-16-4-ipados-16-4-macos-13-3-ventura-watchos-9-4-tvos-16-4-and-homepod-software-16-4/
   2. https://talk.tidbits.com/t/apple-releases-ios-16-4-ipados-16-4-macos-13-3-ventura-watchos-9-4-tvos-16-4-and-homepod-software-16-4/21727/28?u=ace
   3. https://aerialscreensaver.github.io/
   4. https://electricsheep.org/
   5. https://tidbits.com/2023/03/05/macos-photo-screen-savers-still-dont-properly-display-rotated-or-edited-images/

   Hidden links:
   6. https://tidbits.com/wp/../uploads/2023/07/Screen-Saver-settings.png

.