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alawiggle
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Posts: 36
Registered: ‎01-13-2018
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Message 1 of 4

P51 doesn't sleep at night - battery drained to 0% in the morning.

I looked at the Event Viewer and it appears it entered sleep, and then resumed from sleep two seconds later (I'm guessing right after I shut the lid). 

 

How do I stop this? I have the power options to "sleep" I have tried to turn off all the "Allow this device to wake up th computer" - no matter what I try, it seems to not go to sleep. It does *sometimes* but the vast majority, it doesn't if I just shut the lid. 

 

My BIOS is updated. 

 

Is there any lesser known fix? 

 

EDIT: Oh yeah, and sometimes it won't wake up from sleep when pressing power, or opening lid, or pressing fn + 4. 

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Message 2 of 4

Re: P51 doesn't sleep at night - battery drained to 0% in the morning.

Any devices plugged in?


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
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Message 3 of 4

Re: P51 doesn't sleep at night - battery drained to 0% in the morning.

Hello,

 

If you open an elevated Command Prompt (filename: CMD.EXE) and issue a powercfg /lastwake command, does it give any useful information about what even last woke the computer from sleep?

 

Regards,

 

Aryeh Goretsky

 



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alawiggle
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Message 4 of 4

Re: P51 doesn't sleep at night - battery drained to 0% in the morning.


@richk wrote:

Any devices plugged in?


Aside from a mouse USB dongle, no - I had a PCI (express card? media card, I had an SD card in it) and a storage USB drive, but I thought those might be causing an issue so I got rid of them but it didn't help. 

 

 


@goretsky wrote:

Hello,

 

If you open an elevated Command Prompt (filename: CMD.EXE) and issue a powercfg /lastwake command, does it give any useful information about what even last woke the computer from sleep?

 

Regards,

 

Aryeh Goretsky

 


No, displays nothing really - I'll try and do this the next time it happens. 

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