Why is coreaudiod keeping my MBP awake?
Idle sleep is not working on my MBP. I went so far as to install PleaseSleep, and that won't work. I finally decided to dig into this, and looked at the assertions log with pmset:
pmset -g assertionslog
Logging all assertion changes.
9/27/11 9:15:51 AM EDT
Assertion status system-wide:
ChargeInhibit 0
PreventUserIdleDisplaySleep 0
PreventUserIdleSystemSleep 1
NoRealPowerSources_debug 0
CPUBoundAssertion 0
EnableIdleSleep 1
PreventSystemSleep 0
DisableInflow 0
DisableLowPowerBatteryWarnings 0
ExternalMedia 0
Listed by owning process:
pid 210: [0x0000012c000000d2] PreventUserIdleSystemSleep named: "com.apple.audio.'AppleHDAEngineOutput:8,0,1,1:0'.noidlesleep"
Kernel Assertions: None
pid 210 is coreaudiod. I can't for the life of me figure out why core audio would be preventing the Mac from sleeping. Any thoughts? I don't have any USB devices connected.
Thanks.
MacBook Pro, Mac OS X (10.7.1), iPhone 4 16 GB