Methods to Resolve and Diagnose Sleep Problems with Windows 7
This method can be very helpful as it will show what device most recently woke up the computer, however it does not show how long the computer was asleep or any other previous sleep and wake cycles for this I use a custom view in the event viewer.
To start open up event viewer
Then, in the event viewer click on “create custom view in the left tab.
This screen opens up the wizard to create a new custom view which will allow you to select which error logs should be displayed. For this particular guide we are going to select error logs by source, choosing “Kernal-power” and “power-troubleshooting” respectively. Then we are also going to limit the display to only who event ids 1 and 42 as these are the event ID’s relating to sleep states.
Click the radio button for by source, and then select Kernal-power and power-troubleshooting
Then click where it says <all event IDS> and type 1, 42.
Now you have a new custom view which contains two events. One which will show when the computer went to sleep and the other that will show when the computer woke up. It will also provide information as to why the computer woke up.
Standby Tracker can be downloaded here
Well in a nutshell these are some methods to track down sleep problems. Please comment if you know of any others.