Hello,
my system won´t go to sleep mode. Running OSX 10.9.5. on 2012 MBP 13". My external hard drive (for Time machine) prevents sleep when chrome is on. I did
Go to "Terminal",
Type "pmset -g assertions
only in my case it shows "external media" 1. All other processes are at 0. It used to sleep before but no more. What can I do?
MacBook Pro (13-inch Mid 2012), OS X Mavericks (10.9.5)
Hi b-fade,
In the output from the pmset command, there should be information listed under "Listed by owning process," and "Kernel Assertions." In that list, you should find one or more items that have "ExternalMedia." The line with "ExternalMedia" indicates the name and pid of the process(es) that is keeping your Mac from sleeping.
Feel free to paste the output of the 'pmset -g assertions' in your reply. This way we can go about identifying the process that's keeping your Mac from sleeping and a method for getting your Mac to sleep properly!
Cheers!
Ok, thanks for your answer:
this is the old one:
BM$ pmset -g assertions
04.11.15 05:39:52 MEZ
Assertion status system-wide:
BackgroundTask 0
PreventDiskIdle 0
ApplePushServiceTask 0
UserIsActive 0
PreventUserIdleDisplaySleep 0
InteractivePushServiceTask 0
PreventSystemSleep 0
ExternalMedia 1
PreventUserIdleSystemSleep 0
NetworkClientActive 0
Listed by owning process:
pid 16(powerd): [0x00000009000022bd] 12:35:18 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"
Kernel Assertions: 0xc=USB,BT-HID
id=500 level=255 0x4=USB mod=03.11.15 17:11 description=XHC1 owner=AppleUSBXHCI
id=501 level=255 0x4=USB mod=31.10.15 18:09 description=EHC1 owner=AppleUSBEHCI
id=510 level=255 0x8=BT-HID mod=01.01.70 01:00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleBluetoothHIDKeyboard
Benjamin-MacBook-Pro:~ BM$
this is a recent one
BM$ pmset -g assertions
05.11.15 18:53:08 MEZ
Assertion status system-wide:
BackgroundTask 0
PreventDiskIdle 0
ApplePushServiceTask 0
UserIsActive 0
PreventUserIdleDisplaySleep 0
InteractivePushServiceTask 0
PreventSystemSleep 0
ExternalMedia 0
PreventUserIdleSystemSleep 1
NetworkClientActive 0
Listed by owning process:
pid 153(coreaudiod): [0x000000010000131f] 02:18:58 NoIdleSleepAssertion named: "com.apple.audio.'AppleHDAEngineOutput:1B,0,1,1:0'.noidlesleep"
Kernel Assertions: 0xc=USB,BT-HID
id=502 level=255 0x4=USB mod=05.11.15 11:39 description=EHC2 owner=AppleUSBEHCI
id=513 level=255 0x8=BT-HID mod=01.01.70 01:00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleBluetoothHIDKeyboard
Benjamin-MacBook-Pro:~ BM$
b-fade,
Based on the recent pmset output, there's no longer a process holding an ExternalMedia assertion. However, some process has caused coreaudiod to implement a different assertion (any of which have the ability to prevent your system from entering a sleep state as scheduled).
In order to identify the offending process that's causing a particular assertion to keep your system awake, try quitting an application at a time, then running the pmset command again to see if the assertion has been released. In the case of a browser like Chrome, various tabs or extensions (rather than the browser itself) can cause assertions to be implemented. If it does turn out that quitting Chrome releases all assertions, you might consider using Chrome's task manager to further isolate the offending tab or extension that's not releasing assertions.
Chrome Help - Force browser processes to close
https://support.google.com/chrome/answer/95672?hl=en
Regards!
thank you for the continuing support,
I really cannot identify the process that is preventing sleep mode, because it has been working flawlessly for the last 5 days again. I suspected chrome or my USB hub to be the preventer. Howsoever, the report at present looks like this:
BM$ pmset -g assertions
13.11.15 07:33:22 MEZ
Assertion status system-wide:
BackgroundTask 1
PreventDiskIdle 0
ApplePushServiceTask 0
UserIsActive 0
PreventUserIdleDisplaySleep 0
InteractivePushServiceTask 0
PreventSystemSleep 0
ExternalMedia 1
PreventUserIdleSystemSleep 1
NetworkClientActive 0
Listed by owning process:
pid 3849(backupd): [0x0000000100001616] 00:01:25 PreventUserIdleSystemSleep named: "Time Machine backup"
pid 3849(backupd): [0x0000000c00001615] 00:01:25 BackgroundTask named: "Time Machine backup"
pid 16(powerd): [0x000000090000150b] 00:46:20 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"
Kernel Assertions: 0xc=USB,BT-HID
id=500 level=255 0x4=USB mod=13.11.15 07:02 description=XHC1 owner=AppleUSBXHCI
id=501 level=255 0x4=USB mod=08.11.15 03:56 description=EHC1 owner=AppleUSBEHCI
id=519 level=255 0x8=BT-HID mod=01.01.70 01:00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleBluetoothHIDKeyboard
Benjamin-MacBook-Pro:~ BM$
Only minor issue remeining is the download section in the lower chrome bar, where downloads are shown in black with white letters when I exit full screen mode. when I move the cursor to them, it switches back to normal black on white.
Update:
Today the issue reappeared. so i followed the procedure on https://support.google.com/chrome/answer/95672?hl=en
I closed all processes on the task manager and then found out that the whatsapp web application in the browser is most probably the cause for sleep prevention. I double-checked it with opening and closing the whatsapp tab again. So what should I do?
b-fade,
Thank you for using the Apple Support Community. Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://getsupport.apple.com/GetproductgroupList.action.
All my best
I don´t find this to be very helpful, does that mean you can no longer support me?
Will it go to sleep if you quit Chrome?
Sleep - Won’t wake up/won’t stay in sleep
Yes, the insomnia seems to be due to this whatsapp web app. If I quit it, it will go to sleep and of course it also does when I quit chrome.
MBP does not sleep when external HD connected and chrome is running.
