Screensaver not working after logout/login

Thanks.

I saw this advice before in my searches, and thought; nah, probably not, why would this plist file cause screensaver to function after a restart but not after a logout/login?

Anyway, I just tried it, trashed the plist file (last modified a couple of years ago, by the way), restarted - screensaver worked fine, logged out and back in - and it worked! Not even a change in settings, which I sorta expected.

Thanks, Eric.

I spoke too soon. The next day, after normal activity and logout/login the screensaver does not work. After a restart, it's back.

It seems that it's caused by a combination of something I do or a process that is run, and a logout/login that causes the problem. A restart and immediate logout/login does not.

I tried among other things to: restart; screensaver works, start apps one by one; still works, logout/login; problem is back. Also tried to quit all applications before the logout/login; no fix.

I should also say that all the time the screensaver control panel works fine, preview and everything.

I also tried restart, running all the usual and unusual apps, videos running and music playing, pointer in hotcorner; screensaver works. After logout/login, no worky.

Quite a mystery.

I'm going to try a safe boot. I expect that to fix it, but tracking down the culprit is going to take forever...

3'rd party screensaver perhaps?

Is there such a thing?

I forgot to mention; the .plist file that I trashed, that had last modification date two years ago, hasn't even been recreated, so it seems it has nothing to do with how this version of screensaver works.

Thanks, but no thanks. If you read my previous posts more carefully, you'd see that this is by its nature not a problem that system report applications are likely to reveal the cause of, and that I'm reasonably knowledgable when it comes to these things. I've used and tinkered with macs since before "System 7". I'll be fine.

I have not found the case of the problem, but at least I've narrowed it down. The problem only occurs when I'm logged off for longer periods of time, i.e overnight. And when I then login and the screensaver does not work, I can just logout/login and it works again, no restart necessary. The problem does not occurr when I log out/in for 1 minute or ten. Log out for several hours, it happens every time. I can live with it.