My macbook pro 2009 stopped hibernating after closing the lid, also keyboard back light seems stopped working as well, I tried LabTick but no luck.
Assertion status system-wide:
BackgroundTask 0
ApplePushServiceTask 0
UserIsActive 1
PreventUserIdleDisplaySleep 0
PreventSystemSleep 0
ExternalMedia 0
PreventUserIdleSystemSleep 1
NetworkClientActive 0
Listed by owning process:
pid 139(coreaudiod): [0x0000008f000101e7] 00:09:05 PreventUserIdleSystemSleep named: "com.apple.audio.Boom2Engine:0.context.preventuseridlesleep"
Created for PID: 348.
pid 98(hidd): [0x0000004900090168] 00:10:15 UserIsActive named: "com.apple.iohideventsystem.queue.tickle"
Timeout will fire in 109 secs Action=TimeoutActionRelease
No kernel assertions.
Idle sleep preventers: IODisplayWrangler
Best Answer
Looks like that well-known Mac-borker.. Boom2
com.apple.audio.Boom2Engine:0.context.preventuseridlesleep
Uninstall it [your speakers will last longer] or see if there's an update that fixes the issue.