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That should have me turning cartwheels compared to booting my Mac SE from a 20MB hard drive in the 1980s (which in turn was an improvement over a Mac Plus booting from a floppy).īut in practice it’s quite noticeable when my laptop is restarting, and it’s even more disconcerting to have that happen without the startup chime. My 2018 MBPro still takes anywhere from 12 to 16 seconds to boot. As you point out, though, even an SSD only boots up quickly in theory. If there was a power loss in between that caused the computer to shut down, you’ll never know it. This is (almost) a perfect way to pretend that the computer never actually powered off.
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And we’ve got laptops that power-on when you open the lid. We’ve got very fast SSDs that can (in theory) boot up in a few seconds. Now consider these two features together.
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Should the battery run out while the computer is asleep, the OS, at the next reboot, can recover the full system state from this file, making it seem like the computer never powered off - it just took a bit longer than usual to wake from sleep. When going to sleep, the contents of RAM are written out to storage (a “hibernate” file). This is a feature Apple (and Microsoft and probably others) has had for a long time. You only need the power button if the lid is already open (since it would be pretty awkward to have to close-and-reopen the lid). The act of opening the lid is enough to cause a powered-off computer to boot up. I think of they’re trying to blur the line between “off” and “asleep” in order to streamline the safe sleep “experience”.Īs users of modern Mac laptops probably know, the power button is almost superfluous. I don’t understand what modern-day Apple has against the startup sound. Thanks to Howard Oakley, whose post on his Eclectic Light Company blog was the first instance I saw of this, though it has subsequently spread widely. To reverse this setting, should you want to, change the command to: Perhaps Apple is trying to encourage the belief that Macs are always available like iPhone and iPads, but reality doesn’t support that. Sure, make it an option for those who need their Macs to be silent at all times, but it’s a useful indication that the Mac is working as expected-at least to that point in the boot process. However, AppleInsider said that it didn’t work on several machines-it’s unclear why not. TidBITS Talk members report it working on 2017 iMacs, 2018 Mac minis, a 2018 13-inch MacBook Pro, and a 2019 16-inch MacBook Pro. Now, however, Twitter user DylanMcD8 has discovered a new NVRAM parameter that brings back the startup sound, even on the latest Macs. Unfortunately, that approach stopped working with Mac models in 2017, presumably due to Apple removing the option in a macOS update, and since then, new Macs have started up silently. When Apple disabled the startup sound by default in 2016, someone discovered that a Terminal command could bring it back: Ken from the Computer Clan made a nice video that provides a history of the startup sound and demonstrates how the startup sound changed over time. I have recently been playing with some very old Macs and emulators, which reminded me of how the Mac’s startup sound evolved over the years before going quiet in 2016. TipBITS: Enable the Startup Chime on New Macs #1620: OS updates, AssistiveTouch for iOS shortcut palette, Photos album sharing bug.
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DISABLE POWER CHIME ON YOUR MACBOOK PRO HOW TO