Perhaps this has been posted before, but I think that I've found a bug in OS X.
My wife and I both have our own accounts on my mini. We have a cat that sometimes likes to walk across keyboards and our small son likes to emulate the way we type on our keyboard, so we have the System Preferences set so that when the machine has gone to sleep, it requires a password to awaken it.
I leave for work in the morning (leaving the mini logged in normally) and my wife doesn't mess with the Mac until much later, so it is asleep when she sits down at it... So she hits a key and gets prompted for a password. Instead of entering my password, she hits the Change User button, selects her username from the login window, and enters her own password. She then is presented with her desktop and clicks to bring up Safari... Today, she even started typing in the address of the site she was going to when it happened... All of a sudden, the screen went blank... She waited a moment, hit another key on the keyboard, and the screen came back... I don't believe it prompted her for a password at that point.
Anyhow, I tried it tonight... She was logged in, and I allowed it to go to sleep, hit a key, then hit change user, logged in as myself and did a 22 count.. (about 20-25 seconds, perhaps?) at which time the screen went blank.
All my timers are at the defaults.. (Screen saver, energy settings, etc.)
Is this a known issue, or have I found something unusual?
Thanks,
Paul