Restart Mission Control in OS X Lion

Nov 23, 2011 - 6 Comments

Restart Mission Control in OS X

If you make any customizations to Mission Control, or if you encounter obvious problems with how Desktops and apps are handled and assigned, you can restart Mission Control without having to reboot the entire Mac. This is done by killing the Dock, where Mission Control is a child process of, and this is also why when you want to change the Mission Control background image you kill the Dock. You can kill the Dock in two ways:

  • Using Activity Monitor
  • Using the Terminal

The command line method is much faster if you’re comfortable with Terminal.app, launch Terminal from /Applications/Utilities/ and type the following command:

killall Dock

The Dock and all subprocesses will restart themselves automatically, including Mission Control.

Using the task management tool Activity Monitor is the other option for those who prefer staying within the GU and avoiding the command line:

  • Hit Command+Space to bring up Spotlight and type in “Activity Monitor”
  • In the upper right corner of Activity Monitor, find the search box and type “Dock”
  • Select the process and then click on the big red “Quit Process” button, confirming in the dialogue box by selecting ‘Force Quit’

Again, the Dock and Mission Control will automatically restart themselves.

Whichever method you choose to perform the restart, this can be a great troubleshooting tip if you’re running into peculiarities with graphical artifacts, irregular Desktop Spaces assignments, and other generally buggy behavior within Mission Control.

Thanks for the tip Mike

Enjoy this tip? Subscribe to the OSXDaily newsletter to get more of our great Apple tips, tricks, and important news delivered to your inbox! Enter your email address below:

Related articles:

Posted by: Paul Horowitz in Mac OS X, Tips & Tricks, Troubleshooting

6 Comments

» Comments RSS Feed

  1. [...] Now kill the Dock to restart Mission Control: [...]

  2. Superman says:

    Thanks….fixed my problem

  3. Lucas says:

    Didn’t worked for me. Even when I totally restart my iMac, mission control does not work. I have no idea what to do.

  4. Louches says:

    Thanks, fixed my problem too!

  5. Hobbes says:

    Thanks! This is great!

  6. Kyle says:

    Awesome! This worked for me. Thanks!!

Leave a Reply

 

Shop for Apple & Mac Deals on Amazon.com

Subscribe to OSXDaily

Subscribe to RSS Subscribe to Twitter Feed Follow on Facebook Subscribe to eMail Updates