Why Did My iMac Shut Down?

[mrlynn]

Forrest wrote:
From the Finder, Go-Utilities and click on Console

Got it; thanks.

But I don't understand what I'm seeing. Many log entries seem to be like this: ". . . Type Error: 'undefined' is not an object (line: 0)."

Is this a startup at 8:54:46 PM?

. . .
2012-11-08 8:30:23 PM com.apple.Dock.agent[1445] 2012-11-08 20:30:23.174 DashboardClient[14341:a03] (com.kamalaboulhosn.radarinmotion2) undefined: TypeError: 'undefined' is not an object (line: 0)
2012-11-08 8:40:23 PM DashboardClient[14341] (com.kamalaboulhosn.radarinmotion2) undefined: TypeError: 'undefined' is not an object (line: 0)
2012-11-08 8:40:23 PM com.apple.Dock.agent[1445] 2012-11-08 20:40:23.182 DashboardClient[14341:a03] (com.kamalaboulhosn.radarinmotion2) undefined: TypeError: 'undefined' is not an object (line: 0)
2012-11-08 8:50:23 PM DashboardClient[14341] (com.kamalaboulhosn.radarinmotion2) undefined: TypeError: 'undefined' is not an object (line: 0)
2012-11-08 8:50:23 PM com.apple.Dock.agent[1445] 2012-11-08 20:50:23.191 DashboardClient[14341:a03] (com.kamalaboulhosn.radarinmotion2) undefined: TypeError: 'undefined' is not an object (line: 0)
2012-11-08 8:54:46 PM com.apple.launchd[1] *** launchd[1] has started up. ***
2012-11-08 8:55:38 PM com.apple.launchd[1] (com.apple.xprotectupdater[54]) Exited with exit code: 252
2012-11-08 8:55:41 PM com.apple.WindowServer[159] Thu Nov 8 20:55:41 LEJiMac.local WindowServer[159] : kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
2012-11-08 8:56:18 PM com.apple.loginwindow[63] 2012-11-08 20:56:18.358 ManagedClient[219:903] -xaStopDACallbacks: time out processing volumes after waiting 20.0 seconds - queue still contains 20 volumes
2012-11-08 8:56:18 PM com.parallels.vm.prl_naptd[193] QKqueueFileSystemWatcherEngine::addPaths: open: No such file or directory
2012-11-08 8:56:18 PM com.parallels.vm.prl_naptd[193] QFileSystemWatcher: failed to add paths: /Library/Managed Preferences
2012-11-08 8:56:19 PM com.apple.launchd.peruser.501[244] (com.apple.ReportCrash) Falling back to default Mach exception handler. Could not find: com.apple.ReportCrash.Self
2012-11-08 8:56:33 PM com.apple.launchd.peruser.501[244] (com.apple.Kerberos.renew.plist[281]) Exited with exit code: 1
, , ,

I think that's when the iMac shut down.

I can post more, or email a text file, or something, if it would be useful.

/Mr Lynn