Solution: Mountain Lion slow shut down

10.8.5 didn't solve anything for me (I did a clean install, as I always do). I had to apply Designanthem's solution and that worked fine. I hope Mavericks won't have this stupid issue...

I recently bought a SSD for my Macbook Pro 15 mid 2010 (6.2) my boot time is around 18s and my shutdown is incredibly slow.. over 20s when it was around 2s before

i've a picture of the shutdown in verbose mode, can someone take a look and tell me why is taking so long?

joaomalveiro

Please read my solution - here it is again:

Enter each line individually and hit enter after. You may be asked to enter your password after the first "enter". When you insert your password.. it does not show... you just hit enter and return. (at least that is what happened to me)

Here we go:

sudo defaults write /System/Library/LaunchDaemons/com.apple.coreservices.appleevents ExitTimeOut -int 1

sudo defaults write /System/Library/LaunchDaemons/com.apple.securityd ExitTimeOut -int 1

sudo defaults write /System/Library/LaunchDaemons/com.apple.mDNSResponder ExitTimeOut -int 1

sudo defaults write /System/Library/LaunchDaemons/com.apple.diskarbitrationd ExitTimeOut -int 1

sudo defaults write /System/Library/LaunchAgents/com.apple.coreservices.appleid.authentication ExitTimeOut -int 1

this command:

sudo defaults write /System/Library/LaunchAgents/com.apple.coreservices.appleid.authentication ExitTimeOut -int 1

what this " com.apple.coreservices.appleid.authentication " does on shutdown?

thanks a lot .

I noticed that in some cases, when opening folders containing certain types of video files and / or viewing these files with quick look, it may happen that a process called VTDecoderXPCService, which should normally close by itself when no longer in use by 20 seconds, doesn't quit, even without committing any more hardware resources. If that happens, of course, at the time of shutdown ML tries to close it , and it does not respond, ML waits for the default time of 20 seconds and then closes it forcibly. And of course we will once again get the hated wheel, even after applying Designanthem's commands listed above.

In this case it is not sufficient to set the timeout value to a second, because that process (which belongs to the daemon com.apple.coremedia.videodecoder) does not respond to the order of closing, therefore if we want to get rid of it instantly we have to use a Kill command from terminal:

killall -9 com.apple.coremedia.videodecoder

Now we have to make ML run this command automatically every time we log out. I put the kill command into a script which I then set as LogoutHook, basically the equivalent of that "Shutdown Items" folder, well remembered by those who were fortunate enough to use Mac OS 9, and then suppressed for some incomprehensible reason with the advent of Mac OS X.

Now everything works beautifully.

Hello pover mac,

Would you be willing to post step by step instructions on how you made the fix for those of us who do not have any experience with creating a script?

That would be really helpful.

Thank you

OK Virtualkeith, this is what I've done:

[create the script to be executed on shutdown]

sudo nano /Library/Scripts/smetti-con.sh

[it will open the script compilation environment]

#!/bin/bash

killall -9 com.apple.coremedia.videodecoder

[I also wanted to get rid of the startup chime on my MacBook Pro, so I added this command to mute the audio output on logout]:

osascript -e 'set volume with output muted'

hit ctrl+o

confirm with Enter

hit ctrl+x to return to main Terminal window

[now let's make the shutdown script executable]

sudo chmod u+x /Library/Scripts/smetti-con.sh

[set the shutdown script as LogoutHook]

sudo defaults write com.apple.loginwindow LogoutHook /Library/Scripts/smetti-con.sh

[if you added the startup chime command like I've done, now you have to create this script to be executed on startup, in order to have the audio output restored when you log in; otherwise you can completely ignore the following steps]

sudo nano /Library/Scripts/avvia-con.sh

[it will open the script compilation environment]

#!/bin/bash

osascript -e 'set volume without output muted'

hit ctrl+o

confirm with Enter

hit ctrl+x to return to main Terminal window

sudo chmod u+x /Library/Scripts/avvia-con.sh

sudo defaults write com.apple.loginwindow LoginHook /Library/Scripts/avvia-con.sh

Done!

Hi Designanthem

I can see people are very happy with what you told them,

please helm me here,

i bought this imac with and updated it to Mavericks x and since its gone very slow in shutdown, its even not shutting down sometimes,

would you help me here i dont know how to work or type in terminal code and need your guide if possilbe?

Many Thanks

A

read carefully:

Open Terminal.

Then... Enter each line below individually (one at a time) and hit enter after. You may be asked to enter your password after the first "enter". When you insert your password.. it does not show your password... still proceed and just hit enter and return.

sudo defaults write /System/Library/LaunchDaemons/com.apple.coreservices.appleevents ExitTimeOut -int 1

sudo defaults write /System/Library/LaunchDaemons/com.apple.securityd ExitTimeOut -int 1

sudo defaults write /System/Library/LaunchDaemons/com.apple.mDNSResponder ExitTimeOut -int 1

sudo defaults write /System/Library/LaunchDaemons/com.apple.diskarbitrationd ExitTimeOut -int 1

sudo defaults write /System/Library/LaunchAgents/com.apple.coreservices.appleid.authentication ExitTimeOut -int 1

Worked for me. Thanks!

Hopefully we didn't just installed a secret backdoor to our Macs 😀