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Does anyone have any ideas how to fix shutdown problem on 3542?


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Hi guys I am running Osx Mavericks on Dell inpiron 3542 core i3 CPU with intel graphics card 4400. I am now having a problem with shutting down issue AFTER i have used it for more than 3 hours. if I use my laptop less than 3 hrs eveything is perfect but if more than that, then it will become a trouble.


Please help

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well there are allot of things that happen in 3 hours that can affect things. 
1 having the machine sleep and wake can cause issues with hardware being relocated to hpet

2 power management not properly initialized

3 usb power management / initialization issues 

4 need DSDT shutdown fix.


maybe a better description on your exact shutdown problem might help weed out something.

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I did that on Terminal and I see this coming out. Is that correct??
Last login: Sun Mar 22 11:15:04 on console
Mavs-MacBook-Air:~ mav$ sudo pmset hibernatemode 0
Warning: Idle sleep timings for "Battery Power" may not behave as expected.
- Disk sleep should be non-zero whenever system sleep is non-zero.
Mavs-MacBook-Air:~ mav$

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yes that sounds right if you want to check if the setting took you can type in 

pmset -g

and it should list everything

another command you try is 

pmset -g assertions

assertions can also give issues with sleep the command would list what is giving issues to at least hopefully help you track down the culprit


having wake from lan/ethernet set to on in bios can also cause hangs at sleep/shutdown.

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please have a look on this
pool-100-0-0-104:~ mav$ pmset -g
Active Profiles:
Battery Power        -1*
AC Power        -1
Currently in use:
 hibernatemode        0
 halfdim              1
 lidwake              1
 sleep                180 (sleep prevented by coreaudiod, AddressBookSour)
AFTER I tried pmset -g assertions on terminal.
pool-100-0-0-104:~ mav$ pmset -g assertions
3/22/2558 BE, 23:25:34 G
Assertion status system-wide:
   BackgroundTask                 0
   PreventDiskIdle                0
   ApplePushServiceTask           0
   UserIsActive                   0
   PreventUserIdleDisplaySleep    0
   InteractivePushServiceTask     0
   PreventSystemSleep             0
   ExternalMedia                  0
   PreventUserIdleSystemSleep     1
   NetworkClientActive            0
Listed by owning process:
   pid 321(coreaudiod): [0x000000010000019f] 00:10:09 NoIdleSleepAssertion named: "com.apple.audio.'VoodooHDAEngine:pci8086,9c20:0'.noidlesleep"
   pid 988(uTorrent): [0x0000000100000197] 00:10:52 NoIdleSleepAssertion named: "there are active torrents"
   pid 1632(AddressBookSour): [0x00000001000001cf] 00:00:08 PreventUserIdleSystemSleep named: "Address Book Source Sync"
    Timeout will fire in 1791 secs Action=TimeoutActionTurnOff
Kernel Assertions: 0x4=USB
   id=501  level=255 0x4=USB mod=3/22/2558 BE, 23:15 description=EHC1 owner=AppleUSBEHCI
pool-100-0-0-104:~ mav$

 ttyskeepawake        1
 disksleep            0
 hibernatefile        /var/vm/sleepimage
 displaysleep         5
pool-100-0-0-104:~ mav$
having wake from lan/ethernet set to on in bios can also cause hangs at sleep/shutdown
I will have a look on this too in my bios. I will be back soon. Thank you very much

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