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MBP Won't Sleep

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benjamintm

macrumors member
Original poster
Sep 27, 2007
60
28
Hi All,
I'm looking for a solution to an ongoing problem. My Macbook Pro is unable to stay in sleep. Even with all third-party software, if I put the machine to sleep (via Apple->Sleep or closing the lid), my MBP goes to sleep, then wakes up a couple seconds later. Looking at the Console.app, I see the following:

Dec 25 02:34:31 vera kernel[0]: vmmon: powerStateDidChange flags=0x4 (state 2)
Dec 25 02:34:30 vera configd[31]: setting hostname to "vera.local"
Dec 25 02:34:28 vera kernel[0]: System Sleep
Dec 25 02:34:31 vera kernel[0]: Wake reason = PCI
Dec 25 02:34:31 vera kernel[0]: System Wake
Dec 25 02:34:31 vera kernel[0]: vmmon: powerStateDidChange flags=0x82 (state 4)
Dec 25 02:34:31 vera kernel[0]: Previous Sleep Cause: 0
Dec 25 02:34:32 vera kernel[0]: AirPort: Link Up on en1
Dec 25 02:34:31 vera configd[31]: setting hostname to "vera"
Dec 25 02:34:35 vera kernel[0]: AFPSleepWakeHandler: waking up
Click to expand...

The Wake reason is PCI, but beyond that I have no idea what that means. USB has been unplugged and like I mentioned, all third-party software has been disabled.

Any suggestions?

Thanks,
Ben
 
D

dansch

macrumors newbie
Jan 6, 2009
6
0
ive noticed the same problem with my 2.2ghz macbook pro.
nothing connected, it only happens when its on the powersupply.

PMR+SMC reset done, nothing has changed!

did you guys figured out what the problem is ?
 
darwinian

darwinian

macrumors 6502a
Jan 4, 2008
600
1
In R4, more or less
Could this be wake on power supply change? I vaguely recall seeing a setting shutting off that annoying behavior in Cocktail. I'm sure there's a pmset/equivalent setting for it somewhere. Also not sure how that would make sense with the error message. But any kind of power change, accidental or not, would then wake the machine.
 
M

mattrobs

macrumors member
Jun 10, 2008
75
0
Could the problem be as simple as dust? Mine started doing it when I left it on my bed whilst it was hooked up to the TV playing a HD movie.
 
D

dansch

macrumors newbie
Jan 6, 2009
6
0
okay guys i think i got the solution:

try to delete the following file:

/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist

then your Power Management Settings will be reset, feel free to configure it afterwards.

then put your macbook into sleep mode, youll see it will sleep as you expected - at least my one does it now.
 
T

tivoboy

macrumors 68040
May 15, 2005
3,979
792
won't go TO SLEEP

My issue seems to be, that it won't go INTO sleep. From a fresh boot, after not much use, yes it does to sleep after say 30 minutes per the settings.

But, after a couple days use, it no longer goes to sleep. Is there a setting to check for that condition?
 
T

tivoboy

macrumors 68040
May 15, 2005
3,979
792
thanks

thanks for the article, but none of those things seem to apply.?

I wonder if there is some ical issue.
 
A

AlfredE

macrumors newbie
Jul 20, 2009
1
0
MBP Wont's Sleep - Solved: Clamp Shell Sensor

The wakup reason reported for my MBP also was "PCI". I tried nearly everything - no way: The MBP kept re-awaking several times each time I closed the display until it finally stayed asleep.

Then I found some posts about the file
/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
I opened it and inside I found the setting
Wake On Clamshell Open
which was On

I changed that to Off - and hurray! No more re-awakenings :D

I now have to press a key after opening the display, but that's nothing compared to having the sleep mode work properly again!

It seems that the clamp shell sensor is malfunctioning on my MBP...

Regards
Johannes
 
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