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Old 03-09-2012, 06:42 PM   #1
Lawos
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Apple menu shutdown, restarts...

After switching to Lion, when I click shutdown on the Apple menu the iMac often restarts. I know I've clicked shutdown as I get the warning re: shutdown

Any clues as to what might make this happen?
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Old 03-09-2012, 07:42 PM   #2
DeltaMac
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Have you tried a PRAM reset?
Also, reinstall your current Lion Combined updater. That can very often help when you get unexplained glitches in OS X. Get that updater here, if you don't already have a copy somewhere: http://support.apple.com/kb/DL1484

Lion has additional choices in your Energy Saver prefs that may allow automatic restarts under different conditions, such as total loss of power (like a UPS with a bad battery). Make sure that there's no settings that are selected that provide for automatic restarts.
If you don't really see anything there:
Try to log out first, then select Shut Down from the login window. Does your iMac stay powered off when you do that? If it does stay shut off, then that may be a good workaround for you, when you need to have a good shutdown.
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Old 03-09-2012, 08:08 PM   #3
Lawos
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I had reset the PRAM and checked energy saver. Logging out first and then shutdown always works.
The only thing I didn't do is reinstall Lion updater. I'll do it and see if the problem gets resolved.
Thanks.
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Old 03-09-2012, 08:23 PM   #4
DeltaMac
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Just curious -
Do you need to shut down often?
Is sleep a good option for you, rather than shut down?
I normally just sleep my Mac, and I might go a month or two between shutdowns.
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Old 03-09-2012, 09:04 PM   #5
jsalmi
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That's an odd issue. I shut down our Lion MBPs and iMac on a regular basis with zero issues.
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Old 03-09-2012, 09:27 PM   #6
Lawos
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I rarely shut down, but was troubleshooting a possible problem with an APC UPS and thought I was losing my mind when I chose shutdown and it restarted. As I continue to work on the UPS issue, the iMac is plugged into a surge suppressor and I still have the problem with restarting after selecting shutdown
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Old 03-09-2012, 09:46 PM   #7
DeltaMac
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And, your iMac does stay shut down when you do that from the login window, is that correct?
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Old 03-09-2012, 09:55 PM   #8
Lawos
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Yes it stays shutdown
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Old 03-10-2012, 08:13 AM   #9
DeltaMac
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Good - that may verify that you don't have a hardware issue, and it's probably not related to your UPS issue.

If you login to a different user account, can you shut down normally from that user, without logging out first?
If you only have one user, create a new one just for this purpose.
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Old 03-10-2012, 10:15 AM   #10
Lawos
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Many times can shut down normally from the problem acct, but many times I cannot. I have a different account on the same mac that it happens as well.

Wondering if there is some preference file that could be corrupted?

Last edited by Lawos; 03-10-2012 at 10:16 AM. Reason: typo
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Old 03-10-2012, 10:55 AM   #11
DeltaMac
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That's certainly possible.
Trash the file:
/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist

Then, log out, and then choose shutdown.
Reset your power manager, by unplugging all cords from the back, including the power cable. Wait ten or fifteen seconds, then plug all cords back in. Boot into Safe Boot mode (holding the shift key until you see the rotating gear. Log in to get to your desktop. Go in to your Energy Saver pref to re-check (or uncheck) any settings that provide restarts. Shut down (you're still in Safe Boot mode).
Does your iMac stay shut down then?
Start up again normally, and again, try the shut down.
You'll need to use your iMac for a few days to see if anything actually has fixed your shutdown issue.
You should then check in your system.log (in the Console) to see if there's any relevant info about a restart command, when you didn't want that to happen. The system.log is listed by date and time, so keep track of the approximate time that you get an unintended restart, and scroll to that approximate time in the system.log.
Good hunting!
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Old 03-10-2012, 11:29 AM   #12
Lawos
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To be clear the iMac never restarts innapropriately other than sometimes when selecting shutdown from the Apple menu when it will restart instead of shutdown
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Old 03-10-2012, 12:15 PM   #13
DeltaMac
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The worst kind of problem is the intermittent one.
The only sure method to fix, is to find a way to duplicate the problem.
Or, after that possible 'fix', you then decide how long to use the system before you can reasonably declare it fixed for good.
Or, consider the logout as a good workaround.
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