在“节能器”设置(“系统偏好设置”->“硬件”部分)中,Mac设置为15分钟后进入睡眠状态,但没有任何反应。
Mac会耗尽电池电量,并在电池电量不足时自动关闭。
如果输入pmset -g assertions
终端,则会得到以下信息:
3/31/14 5:46:52 AM EDT
Assertion status system-wide:
PreventUserIdleDisplaySleep 0
PreventSystemSleep 0
PreventUserIdleSystemSleep 1
InternalPreventDisplaySleep 0
ExternalMedia 0
UserIsActive 0
ApplePushServiceTask 0
BackgroundTask 0
Listed by owning process:
pid 251(coreaudiod): [0x0000000100000d01] 00:17:27 NoIdleSleepAssertion named: "com.apple.audio.'AppleHDAEngineOutput:1B,0,1,1:0'.noidlesleep"
pid 251(coreaudiod): [0x0000000100000929] 01:11:47 NoIdleSleepAssertion named: "com.apple.audio.'BoomEngine:0'.noidlesleep"
pid 269(helpd): [0x0000000c00000159] 02:37:33 BackgroundTask named: "com.apple.helpd.sdmbuilding"
Kernel Assertions: None
我应该怎么读?为什么PreventUserIdleSystemSleep
设置为一个?闲置一段时间后,如何设置Mac进入睡眠状态?