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4/8/2010
Only after passing the battery level test are devices that consume significant power turned on by Power Manager.
Do the following to achieve faster suspend times:
- After suspend is initiated, ignore the suspend button until a PBT_RESUME notification arrives.
- In the battery driver, implement the cache flag in the GetSystemPowerStatusEx2 function.
- Choose a high enough battery critical level so that the system does not reduce power unexpectedly if a device is turned on.