MacBook Pro does not sleep when lid closed

Test after each of the following steps that you haven’t already tried:

Step 1

Apple menu > System Preferences > Print & Scan > Open Print Queue

Check all printers for unfinished jobs. Deal with any you find.

Step 2

Apple menu > System Preferences > Energy Saver > Power Adapter > Wake for network access: uncheck. You may need to unlock the preference pane by clicking the lock icon in the lower left corner and entering your administrator password.

Step 3

Apple menu > System Preferences > Energy Saver > Schedule > Start up or wake: uncheck.

Step 4

Apple menu > System Preferences > Sharing: uncheck all boxes.

Step 5

Disconnect all wired peripherals except keyboard, mouse or trackball, and monitor, if applicable.

Step 6

Launch the Activity Monitor application.

Select All Processes from the menu in the toolbar of the Activity Monitor window, if not already selected. Enter “powerd” (without the quotes) in the "Filter" text field. Select the powerd process and click the Quit Process button in the toobar (stop-sign icon.) In the sheet that opens, click Force Quit. You’ll be prompted for your administrator password. The process will be relaunched immediately.

Step 7

Reset the SMC.

Step 8

Boot in safe mode and log in. The instructions provided by Apple are as follows:

1. Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
2. When you see the gray Apple logo, release the shift key.
3. If you are prompted to log in, type your password, and then hold down the shift key again as you clickLog in.

The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

Note: If FileVault is enabled under OS X 10.7 or later, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode.

Safe mode is much slower to boot and run than normal. Don’t launch any applicationsat first. If sleep still doesn’t work properly, back up all data and reinstall the OS. After that, if you still have the issue, make a “Genius” appointment at an Apple Store to have the machine tested.

If sleep now works as expected, go on to the next step.

Step 9

Still in safe mode, launch the usual set of applications that are running when you have the problem, including your login items, one at a time, testing after each one. Some applications may not work; skip them. You might be able to identify the cause of the problem this way.

Step 10

If sleep is still working after you’ve launched all the usual applications, reboot as usual (not in safe mode) and test again. If sleep still works, you’re done, at least for the moment.

If you still have the sleep issue after booting out of safe mode, post again.

Triple-click anywhere in the line below to select it:

pmset -g assertions

Copy the selected text to the Clipboard (command-C).

Launch the Terminal application in any of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.

Paste into the Terminal window (command-V).

The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear.

Post any lines of output that appear below what you entered — the text, please, not a screenshot.

dfreez09 wrote:

This is the output I recieved when typing in the command above in to terminal.

Battery Power:

lidwake 1

ttyskeepawake 1

hibernatemode 3

gpuswitch 2

hibernatefile /var/vm/sleepimage

displaysleep 3

sleep 15

acwake 0

halfdim 1

sms 1

lessbright 1

disksleep 10

AC Power:

lidwake 1

ttyskeepawake 1

hibernatemode 3

gpuswitch 2

hibernatefile /var/vm/sleepimage

womp 1

displaysleep 5

networkoversleep 0

sleep 15

acwake 0

halfdim 1

sms 1

disksleep 10

Many Thanks.

That listing is incomplete. You're missing entries for standby and then autopoweroff (depending on version of ML you're running).

Something's not right with your PMSET .plist files. Rebuilding those may fix this issue.

The path for the plist file is /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist.

Usually, deleting the file or moving it to your desktop and rebooting allows the OS to rebuild the file from scratch. Try that and then do another pmset -g custom and see what you get listed. System defaults supported by your actual laptop should be rebuilt then.

I started having the same problem yesterday. If I put it to sleep, it would almost immediately wake up. If I closed the lid, it would wake for a few minutes then sleep. If screen saver went on, it would quickly wake again until the next cycle and then wake, over and over.

Did the PRAM reset. No help. Ran Permissions Repair, nothin. Reset Energy Saver, nada. Also made sure iTunes wasn't the problem.

I am using a Mbook Pro running 10.5. Opened terminal and it showed the following.

mac-macs-computer:~ drod$ pmset -g assertions

12/1/14 8:35:53 AM PST

Assertion status system-wide:

PreventUserIdleDisplaySleep 0

PreventSystemSleep 0

PreventUserIdleSystemSleep 1

InternalPreventDisplaySleep 0

ExternalMedia 0

UserIsActive 0

ApplePushServiceTask 0

BackgroundTask 1

Listed by owning process:

pid 200(coreaudiod): [0x000000010000255b] 01:07:18 NoIdleSleepAssertion named: "com.apple.audio.'AppleHDAEngineOutput:1B,0,1,2:0'.noidlesleep"

pid 4127(helpd): [0x0000000c00000fa7] 00:00:50 BackgroundTask named: "com.apple.helpd.sdmbuilding"

But neither of these led to solving the problem either. So I went back over to Activity Monitor and set it to look at Real Memory or %CPU Usage. In both categories I saw that Flash Player was taking up quite a bit of usage but knew I didn't have anything running in Safari. So Quit that process in Activity Monitor and the problem IMMEDIATELY went away. Interesting that Flash didn't show up in the Terminal as keeping the Mac from going to sleep. However I wonder if the 'com.apple.Audio' was somehow linked to Flash?

Hope others find this remedy works for them too.

New issue however, once quitting Flash Player, Facebook or other vids won't play automatically so you need to get Flash up and running again. I did this by … simply quitting and restarting Safari.

Another note, after I quit the Flash Player in Activity Monitor, web pages didn't function properly even after restart of Safari and Rebooting. So had to reinstall Flash Player once again. Maybe it was corrupted in the first place?

All web pages appear to be working normal now.

Intel-based Macs: Resetting the System Management Controller (SMC)

Please enter the following command in the same way as before and post the output:

pmset -g custom

Boot in Recovery mode (command-R at startup) and test.