Turning off Macbook Display when using External Display on Lion

works perfect thanks man!

Appreciate if you can confirm if this method is applicable to extended display, non mirror mode and on battery power?

I've tested on my MBP 13" pro (early 2011) model with Lion 10.7.2 and it didn't work. 😟

You guys really should read DaringFireball. All you need to do is this terminal command, shut down computer and reboot

sudo nvram boot-args="iog=0x0"

To undo this change type type the following command or zap the PRAM (press Cmd+Opt+p+r at power up):

sudo nvram -d boot-args

Now put away your silly magnets!

http://daringfireball.net/linked/2011/10/20/lion-macbook-display

And you should really read a much older post on Macworld:

http://hints.macworld.com/article.php?story=20110901113922148

Oh wait! That hint *does* reference the source of the trick, which is......... in this very thread right here:

https://discussions.apple.com/thread/3190417?answerId=16059565022#16059565022

post by Chenga.8.

Works perfectly for me, ever since the 31st of August.

sudo nvram boot-args="iog=0x0"

Worked well for me! Thank you!

After finding out that I could switch which display that I wanted my dock and menu bar on I realized that it was way better to just use both screens.

You can also use secondbar to have to menus on both displays as well.

I ended up just using the 22" external monitor as my main screen with dock etc and then the 11" MBA screen as kinda a scratch paper, side table deal. Much better.

About the magnet: Can you use your video camera in magnet mode?

Thanks

Hi,

Does the sudo command work in the mid 2009 MBP 13" (Core 2 Duo 2.53)?

Thanks!

I have found an awesome work around solution using the magnet tick that will allow gained keyboard and touchpad use.

NOTE:This solution only works for people with starcraft 2 installed.(I am also guessing that any game which takes up the full screen might work as well but have only tested it with starcraft 2)

Step One: Use the magnet to trick your monitor so that your only running your external in full resolution

Step Two: Boot up Starcraft 2 in full screen mode.

Step Three: Once your in full screen mode, go ahead and take the magnet off.

Step Four: You can now minimize or quit Starcraft 2 and your external monitor will stay as the primary with full resolution as well as added keyboard and trackpad functionality.

whala! =)

Does anyone know if the fridge magnet thing is safe because it sure works like a charm

You guys really should just try out the terminal command I posted!

The terminal command only works when the MBP is in charging mode, not for running on battery mode.

Was there an update to the Lion OS? Today I connected my macbook pro to my external monitor and it worked like snow leopard. I was able to operate my macbook pro in open clamshell mode while using my external monitor as the main monitor. The internal display was turned off. I am curious if they finally got around to changing that feature or if it is just a glitch.

I think I found some another solutions on this, below is step that I try to described

1. setup "Not Mirrored" on display preferences...

2. Drag the taskbar to external screen, for mine, it will show red border on screen which selected.

3. i close the lid

4. move the bluetooth mouse as normal id lion. so it came on 1 display only.

Will try to capture the picture / video and post to

Have Fun.

Hi

I am trying the solution which involves: boot-args iog=0x0

However, even after rebooting my Macbook, this does not change anything. After reboot, the screen still remains functional. If I shut the lid, the external monitor defaults to the main monitor, but only for a short while before it too goes into sleep mode.

I am using a Magic Mouse, could this be the reason?

Also, correct me if I am wrong, but the command line above switches the monitor off, meaning I am able to use the trackpad with the external monitor? And that I can leave my lid open so that the speakers are still functional?

Thanks