Thus it doesn’t appear possible to change lid behaviour in the current NVRAM, and any experimentation isn’t going to be easy because of the risk of rendering that M1 Mac unbootable. Far from auto-boot determining lid behaviour, it appears to result in boot failure. Experience in setting AutoBoot or setting auto-boot to false shows that this isn’t a value you want to change. This is common with at least some iOS/iPadOS devices, where the auto-boot value has nothing to do with lid behaviour, of course.
This doesn’t appear to be the case with M1 Macs, although they have a variable with the key auto-boot which might appear similar. In the past, with Intel notebooks, open lid behaviour has been controlled by an NVRAM variable with the key AutoBoot.
#Insomniax for mac disable lid sleep not working sierra manual
This makes manual NVRAM changes high risk, and not something to experiment with unless you want practice restoring in DFU mode.Īpple doesn’t document the contents of the M1 NVRAM either, so even if you think the variable you’re intending to change is ‘safe’, you could be in for a nasty surprise. That means that any change to NVRAM which affects its ability to boot normally makes it impossible to reset the NVRAM and correct the problem. Yes, you can ‘reset’ NVRAM at the command line, but in order to do so your Mac has to boot in the first place. This is currently a difficult area with M1 Macs, as you can change settings stored in NVRAM, but there’s no effective way to reset them, other than by performing a restore in DFU mode. There are two different settings involved here: when a Mac is shut down, actions which initiate the boot process are controlled by settings in NVRAM those which affect the decision to wake from sleep are controlled by the System Management Controller (SMC) through pmset. The simple answer would be to disable this behaviour, and require that Mac to wake or boot only when the Power button is pressed, the behaviour of some older notebook models. As some have discovered, inserting even a thin cloth over the keyboard can lead to inadvertent waking or starting up, resulting in unintended battery discharge when the Mac’s not in use. Although in the great majority of cases, this suits users fine, there are times when you might want to clean the screen or keyboard without it starting up. If you’ve got an M1 notebook, MacBook Air or Pro, you’ll be familiar with its behaviour: whenever you open its lid, it’ll wake from sleep or start up if it has been shut down.
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