Photo Screen Saver not functioning with Yosemite Upgrade

Mine seems to be working now and the settings are not defaulting to National Geo or anything else. I reduce system preferences and leave it open--that has worked now for weeks and my iPhoto pictures always cycle when screen saver kicks in. Not perfect, put a lot less annoying.

10.10.2 has not addressed the issue for me. Still have to keep the System Prefs minimized in the dock, otherwise it will default to the National Geographic photos.

I take it back. My screen saver goes to Natl Geographic after a few days of working correctly (iPhoto) in 10.10.2. Oh well, it was nice for a couple of days.

It’s been several weeks now, and my 3 (2 x Mac Pro, 1 MBP) machines have been fine after I rebuilt the iPhoto database on each one. My current theory is that something is corrupted, and the screen saver goes to some default, which is Nat Geo. Rebuilding my iPhoto database seems to fix it.

Something crashed on one of the machines (I think it was Flash), and it switch back to Nat Geo for a while. I rebuilt it again, and it’s still fine a week later.

It’s a bit of voodoo, but if a KFC chicken sacrifice works for Cerrano, I’m going to go with it.

That's what I have done also, but every time you reboot, the sys preferences leaves the dock and back to square one

You have to click on the yellow dot in the upper left corner, then it will go to the dock

THIS IS MY SOLUTION - AND IT'S EASY

System Preferences

Desktop & Screen Saver

Screen Saver

Choose "Snapshots" from the left side window

In the right side window see where it says Source: (drop down menu)

Click on the drop down menu and select "Choose Folder." Find the folder you want to use for your screen savers.

That's it!... you can choose an effect like "Ken Burns" from the the group of icons in the left side window that is above Snapshots.

I went to system preferences, then to screensaver, sorry, but there is no "snapshots" selection on the left side. You must have an older version of Yosemite, or a different OS. I have the latest Yosemite update 10.10.2

I am on a brand new computer that I just got this week. I'm running 10.10.2. I did bring my files over using Time Machine migration. But I don't know how that would affect the OS.

It should have not affected the OS by transferring files. Since we are both running the same OS I don't know why you have "snapshots" selection and I don not. I also don't know why Apple hasn't addressed this issue because it has been happening since Yosemite came out. Currently, I just leave the sys pref on the dock and it doesn't revert back to National Geographic unless I close my MacBook or reboot.

Hello,

I had this problem too and like you, I couldn't find a fix for this.

And then, after days of search, I found this page http://www.macissues.com/2014/12/10/fix-reverting-screensaver-settings-in-os-x/

I followed the first tip of that article:

- Open a Terminal window

- Type this command (just copy-paste it): defaults -currentHost delete com.apple.screensaver

This command clears all your screensaver settings and reverts them back to default. When you open your screensaver preferences, just set them up the way you like it.

Before applying this fix, my screensaver would revert to national geographic several times a day.

Since then, my settings seem to stick and its been days since I've tried this fix. 🙂

You can try that and tell us if it works. Good luck!

Nope, doesn't work either. My screensaver did revert to National Geographic again. 😠

Would you try rebuilding your iPhoto database (hold down option and command while opening iPhoto, select last option)?

It’s possible that different types of failures cause it to default to Nat Geo. If it’s not the preferences, then maybe it’s this.

If it gets fixed, but then goes back to Nat Geo, maybe that same failure happened again, like a pref or database getting corrupted.

Thanks for the tip. I'll try that and see if it works.

Having the same issue.

Issue started after I installed and started using FireFox (switched from Chrome). Before FireFox, my screensaver was pulling iPhotos perfectly as intended.

(I also installed AdBlock Plus, a theme, and a few other less popular extensions).