MacBook does not go to sleep when plugged in since upgrading to Lion

4

My MacBook does not turn off when I put it in sleep mode, when it is plugged in. I put the laptop on "sleep" or close the lid, but the computer stays on and stays hot! My MacBook goes to sleep fine (turned off and had pulsating white light when on battery). If it is plugged in & I put it to sleep, the screen shuts off, but the computer stays on (solid white light)!

This has been happening ever since the upgrade to Lion! Is there any way to fix this?

It shuts down fine & it goes to sleep fine when on battery. It does not go to sleep when plugged in, that is the issue! I have already tried resetting SMC & PRAM, fixing permissions, and disabled startup applications!

My friends macbook pro goes to sleep fine with Lion! What is wrong! This did not happen in Snow Leopard!

user46818

Posted 2011-07-25T09:54:33.560

Reputation: 71

So it also doesn't shut down when you press the Shut down button and select an appropriate option? Can you check in Activity Monitor.app if there is any process running at higher CPU load that would prevent shutdown? – slhck – 2011-07-25T11:28:39.980

It shuts down fine & it goes to sleep fine when on battery. It does not go to sleep when plugged in, that is the issue! I have already tried resetting SMC & PRAM, fixing permissions, and disabled startup applications! – user46818 – 2011-07-25T16:42:53.700

See if system.log (Console) has anything notable in it relating to sleeping, – Vervious – 2011-07-25T17:49:59.960

Answers

3

Same here. I resolved it by going to System Preferences, then Sharing, and disabling options there. After this closing the lid would cause my MacBook to sleep. This was the first time I saw the new sleeping led pattern :)

I was then able to restore the sharing settings, and it appears to sleep normally.

Palantir

Posted 2011-07-25T09:54:33.560

Reputation: 548

gotta find a way to disable it... – Xster – 2011-09-21T21:45:24.863

2

I found that after disabling "Internet Sharing" in "Sharing" in prefs pane, it worked fine. Tried it on and off several times. Works ;-)

Rene Locht

Posted 2011-07-25T09:54:33.560

Reputation: 21

1

  1. Go to Utilities in the Applications folder and open the Terminal app.
  2. Type "pmset -g" without the quotes and hit enter.
  3. If "sleep" has 0 next to it and the words "imposed by" ; The number next to the imposed by is the process ID. Write that number down.
  4. Type "ps -e" and hit enter. This will list all running processes.
  5. Find the process imposing on the sleep mode and take appropriate action.

In my case it was process id 19 which turned out in this instance to be a print server process. I went to "Print & Scan" in System Preferences and reset deleting all installed printers from there. . . Problem solved. I added the one printer that I needed and sleep still works. I don't yet understand quite how printing can get this way with the sleep mode.

FireMouse

Posted 2011-07-25T09:54:33.560

Reputation: 161

0

You can also do pmset -g to find out which pids are blocking sleep

Xster

Posted 2011-07-25T09:54:33.560

Reputation: 1 913

Asked: 2011-07-25T09:54:33.560

Viewed: 2 409 times

Active: 2012-08-14T17:40:42.907