IIRC, I had an issue with screen saver settings not taking effect some months ago (under Ventura), but back then it turned out to be a non-issue.
Now, under Sonoma (14.0), I have an issue with the settings (user defaults) of my screen saver, again. I go into System Settings, change some settings of my screen saver, they take effect immediately in the little Preview window in SysSettings, but when I click on "Preview" or let the screen saver come on automatically, the new settings are *not* in effect. From one user, I heard that the new settings take effect only after rebooting. So, maybe, something has changed in the way macOS 14.0 handles the NSUserDefaults, and/or maybe I make an error with using the API. Maybe there is a bug in macOS 14.0 ? Below you can find a recap of how I handle the settings using NSUserDefaults. Interestingly, the same code works fine in a regular app (not screensaver). I will be very grateful for any kind of suggestions or insights. Best regards, Gabriel My screensaver stores different settings for different monitors in the [NSUserDefaults standardUserDefaults]. To do so, I generate defaults_ = [NSUserDefaults standardUserDefaults]; Then, I create a dictionary containing the default settings and register them, like this: NSDictionary * monitor_defaults = [NSDictionary dictionaryWithObjectsAndKeys: defaultsForMonitor, displayname, nil ]; [defaults_ registerDefaults: monitor_defaults]; NSDictionary * monitor_user_prefs = [defaults_ dictionaryForKey: displayname]; Then, I read the actual values from monitor_user_prefs. When the user changes a setting, I do the inverse, like this: .. create a new dictionary monitor_user_prefs, containing all the key/value pairs of the settings .. [defaults_ setObject: monitor_user_prefs forKey: displayName_]; bool success = [defaults_ synchronize];
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