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macrumors member
Original poster
Apr 30, 2018
I don't know if it's a bug. is always the cause of keeping the computer from sleeping automatically.

I tried clearing Safari Cache and it worked for a while, then again it started to prevent sleep.
Assertion status system-wide:

BackgroundTask 1

ApplePushServiceTask 0

UserIsActive 1

PreventUserIdleDisplaySleep 0

PreventSystemSleep 0

ExternalMedia 1

PreventUserIdleSystemSleep 0

NetworkClientActive 0

Listed by owning process:

pid 86(powerd): [0x0000074f00088491] 00:39:28 ExternalMedia named: ""

pid 367(UserEventAgent): [0x00000162000b8323] 01:04:45 BackgroundTask named: ""

Created for PID: 563.

pid 148(WindowServer): [0x0000002000098088] 00:00:00 UserIsActive named: " serviceID:1000005f4 name:AppleEmbeddedKeyboa product:iMac Keyboard eventType:3"

Timeout will fire in 600 secs Action=TimeoutActionRelease

Kernel Assertions: 0xc=USB,BT-HID

id=503 level=255 0x4=USB creat=13/01/2023, 6:15 PM owner=G502 HERO Gaming Mouse

id=504 level=255 0x8=BT-HID creat=13/01/2023, 6:23 PM owner=AppleBluetoothHIDKeyboard

id=505 level=255 0x4=USB creat=13/01/2023, 6:39 PM owner=StoreJet Transcend

Idle sleep preventers: IODisplayWrangler
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