How do I determine the cause of resuming from hibernation in Windows 7?

4

My notebook sometimes resumes from hibernation without any apparent reason. This happens only when its plugged in power, LAN connection does not influence it.

Is there some log that would tell me why it resumed (what timer or device) so that I can disable it? Or can I start logging of it?

Lukas

Posted 2010-11-27T06:39:08.327

Reputation: 1 156

Answers

5

You can use powercfg to find out what is waking up your computer.

  1. Click on Start
  2. Type cmd to open a command prompt
  3. Type powercfg -lastwake

This will show you the particular USB or network device or event waking up your computer.

Alexander Lai

Posted 2010-11-27T06:39:08.327

Reputation: 739

It seemed to work at the beginning. Sometimes it says (button, planned task...) , but sometimes the counter is empty, and that is the case I am interested in... – Lukas – 2010-12-13T10:06:22.713

For XP users, the equivalent command is powercfg -devicequery wake_armed – TrojanName – 2012-05-25T12:42:48.663

@Brian: I'm pretty sure that ´powercfg -devicequery wake_armed´ does under XP what it does under 7, i.e. show a list of devices that CAN wake the system. Not the one that DID wake the system last time. – Paul Groke – 2012-06-29T02:26:30.087

Asked: 2010-11-27T06:39:08.327

Viewed: 778 times

Active: 2011-11-15T05:03:44.647