Photo Screen Saver not functioning with Yosemite Upgrade

TaylorP56659Oct 23, 2014 5:44 PM Re: Photo Screen Saver not functioning with Yosemite Upgrade
Re: Photo Screen Saver not functioning with Yosemite Upgradein response to scottfcook

I have the same issue.

Try this. I think this has worked for me. Only time will tell.

This solved my question by dominic23 on Oct 22, 2014 4:33 PM

Close all windows and quit all applications.

Hold the option key down and click the "Go" menu in the Finder menubar.

Select "Library" from the dropdown, then "Preferences" folder.

Look for these two files.

com.apple.desktop.plist

com.apple.systempreferences.plist

Right click each one of those and select " Move To Trash" from the contextual menu.

Restart the computer.

That does not work for me - I do not have those files (I deleted them before and it did not help 😟)

Ever since I checked the box 'Show Clock' I have not lost my choice of screen saver. Coincidence? Probably.

I had this screen saver bug corrected for almost a week. Now it decides to return to the NAT GEO default slide show again. My Mac has a mind of its own.

I thought only PC's did want they wanted.

Arghhh!

This seems to have fixed this problem for me:

System Preferences -> Energy Saver -> Put hard disks to sleep when possible

• I did not have this option selected, as I do not want my hard drives to sleep. But I have seen this issue before, related to having my iPhoto library on an external hard drive that was incorrectly going to sleep and not respecting this setting. So to test my theory I selected it, quit System Preferences, launched System Prefs again and deselected it, which seems to have reset the Energy Saver policies, and the screen saver has since been working correctly

Maybe this helps others?

No - does not work for me.

I cannot use Energy Saver - and screensaver does not work either.

Please fix APPLE!

You may be on to something. Something else I did right before it started working permanently was deselect "Show Clock" and then reselect it... Ever since the screen saver has been displaying the correct iPhoto photos as the screen saver.

That does not work for me either.

I can use the hot corners but nothing else works.

This solution (and other involving trashing preferences) doesn't seem to work for me - the preference files store the settings but the problem seems to be that something is writing new settings to the preferences.

The offending plist file seems to be in the ~/library/preferences/ByHost folder

com.apple.ScreenSaverPhotoChooser

This stores the folder, the shuffle setting and remembers the last photo (so the screensaver resumes where it left off if playing in order). When you change the preferences, this plist changes to reflect it. However, sometimes, at the exact moment the screensaver launches something changes the plist. I don't know how to tell what process is doing this or why. I tried locking the file. but unsurprisingly the system is able to circumvent this kind of meddling (it seemed to create a temporary copy of the plist which it changed!)

Okay, I need you guys to help me test a theory.

First, use Disk Utility to Repair Disk Permissions on your startup disk.

If my theory is correct, right at the end you should see that a problem with a file

User differs on “private/var/db/displaypolicyd”; should be 0; user is 244.

Now set your screensaver how you like it, exist system prefs and keep going in and out of screensaver (use a hot corner or something).

Does it forget your settings or does it remember them now? For me it seems to remember them. However, the permissions issue recurs every time I reboot, so the problem comes back. Some people are reporting that this permissions issue also seems to be connected with other display related bugs.

This still does not work.

Why can't apple fix this?

I had the same problem with Mavericks and now with Yosemite. I set the source of my Screensaver to iPhoto, but it resets itself to National Geographic. In Mavericks it happened after I had made edits to photos in my iPhoto library. With Yosemite it is happening more frequently and not necessarily after making any edits.

iMac, late 2009

same problem here. bummer.

the only thing I have found to work is to leave system preferences active (and minimized to the dock)

This is indeed very irritating. I've tried some of the workarounds, but none did the trick. Hopefully our numbers will increase and catch Apples attention.