Event Log "Wake Source" when system wakes from sleep
I don't know of a definitive source for the Wake Source codes, but next time you see a 0, try running the following command at a prompt:
powercfg -lastwake
it should hopefully give you more information than just a 0.
Doltknuckle
Updated on September 17, 2022Comments
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Doltknuckle almost 2 years
So I've been troubleshooting sleep timers for our systems and have run across an interesting issue. I need a way to report how long a system was awake after a number of different inputs. Now, I've discovered that the System Log tracks wake and sleep events and even tells you the times that everything happens at. The thing is doesn't tell you is what triggered the wake event. It does give you a numerical code however. Here are some examples of what I am finding.
Index : 2901 EntryType : Information InstanceId : 1 Message : The system has resumed from sleep. Sleep Time: 2010-10-01T23:20:06.097488100Z Wake Time: 2010-10-03T17:41:12.796400500Z Wake Source: 0 Category : (0) CategoryNumber : 0 Source : Microsoft-Windows-Power-Troubleshooter
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Index : 2841 EntryType : Information InstanceId : 1 Message : The system has resumed from sleep. Sleep Time: 2010-10-01T19:19:37.239789600Z Wake Time: 2010-10-01T21:28:48.921200800Z Wake Source: 4HID Keyboard Device Category : (0) CategoryNumber : 0 Source : Microsoft-Windows-Power-Troubleshooter
So here's my question: Does anyone know what the different numerical codes for the "Wake Source" mean? I think "0" is a magic packet and "4" is a USB device.
Does anyone have any idea if there is any documentation out there on this for Windows 7?
Thanks in advance
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Doltknuckle over 13 yearsWhile it does give more than just a code, the information is not anything I don't already know. Thanks though