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So, I am a happy (genuinely, not sarcastic!) owner of a new MacBook Air (2018). It works great! It’s running macOS 10.14.1 (Mojave).

But it seems to do something that owners of 2016 to 2018 MacBook Pros mention experiencing: That is the second you open up the lid to this thing, the machine boots up without hitting the power button.

This isn’t a completely annoying issue, but is a bit odd. I have read blog posts like this one—as well as this Ask Different post—that recommends modifying the NVRAM like this:

sudo nvram AutoBoot=%00

And to unwind this you can run this command or reset the NVRAM completely:

sudo nvram AutoBoot=%03

But when I did this, while the machine—indeed—did not initially boot up when the lid was open, pressing any key on the keyboard—and even the trackpad—will make my 2018 MacBook Air start up. So my question is similar to that other Ask Different post but I am also asking about the issue where the machine will start up if a keyboard key or the trackpad is pressed.

This seems weird to me. Why have a power button when any touch of an input device will start the thing up?

So is there any way to prevent a MacBook Air (2018)—and possibly 2016 to 2018 MacBook Pro—from powering up when the lid is open or an input device (keyboard or trackpad) is touched?

Just let me be able to power it up the good old fashioned way by pressing the power button (with Touch ID) that is in the upper right-hand corner of the keyboard.

  • just out of curiosity, how would you start it up ? – Ruskes Nov 11 '18 at 3:07
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    @Buscar웃 The 2018 MacBook Air has a power button with Touch ID in the upper right-hand corner. Just press that like I do on my 2013 MacBook Air (11 inch) model. – JakeGould Nov 11 '18 at 3:08
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    @Buscar웃 Password? What are you talking about? Did you even read the question. It has nothing to do with passwords. – JakeGould Nov 11 '18 at 3:55
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    "Why have a power button when any touch of an input device will start the thing up?" Probably in case the machine hard-freezes and you need to forcibly power it off. – Wowfunhappy Nov 11 '18 at 16:54
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    @Wowfunhappy True, but that is a rhetorical question in the middle of this. I makes no sense to me why there isn’t a simple system preference pane option that allows for just the power button to just power things on. – JakeGould Nov 11 '18 at 17:05
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Just do the following on Terminal:

sudo pmset lidwake 0
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    Sorry, but this only deals with a machine that is already powered on and the command simply prevents it from waking when the lid is open. What I am talking about is the behavior of the new MacBooks since 2011 that will power up a MacBook when the lid is open. – JakeGould Mar 11 at 19:59
  • Correction: What I am talking about is the behavior of the new MacBooks since 2015 that will power up a MacBook when the lid is open. – JakeGould Mar 12 at 1:55
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    Understood, indeed my answer is wrong. I just thought that a Macbook user does not often shutdown the machine, that's all. Hope you find the right solution. – Denicio Mar 12 at 18:33

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