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wake

Putting the insomniac Mac to sleep: help is at hand

Discovering why a Mac wakes up when it should be asleep, and quietly flattens its battery overnight, has been almost impossible, until now.

June 23, 2022 Macs, Technology

Who started that Mac up? How Macs can start up on their own

Odd things can lead to some Macs starting up or waking up spontaneously. Here’s one solution to those mysteries.

October 21, 2021 Macs, Technology

Explainer: System Management Controller (SMC)

On Intel Macs, resetting the SMC was a universal panacea until the T2 came along. What can we do instead with an M1 Mac?

August 28, 2021 Macs, Technology

What happens when background scheduling fails

CTS scheduling and dispatch of background tasks has no user interface, and no controls. How can you tell that there’s a problem, and what to do about it?

October 17, 2020 Macs, Technology

How your Mac may talk in its sleep thanks to HID

If you power your Mac from a UPS with a USB connection, sleep may not be all it’s supposed to be.

June 20, 2020 Macs, Technology

Why does my Mac keep waking up?

When you wake your laptop up in the morning, it’s clear it has been awake half the night. How to ensure it gets a proper night’s sleep.

December 14, 2019 Macs, Technology

Apple has released macOS Mojave 10.14.6 Supplemental Update

Apple has just released macOS Mojave 10.14.6 Supplemental Update, which it says addresses problems in some Macs when […]

August 1, 2019 Macs, Technology

Tackling sleep and wake problems

From hardware diagnostics to pmset and resetting the SMC, all you need to know about diagnosing wake and sleep problems.

May 9, 2019 Macs, Technology

Sleep, Wake, and Startup: Hardware and ACPI

Shutdown cause codes, wake reasons, ACPI, and sleep states – diagnosing problems from hardware events.

August 8, 2017 Macs, Technology

Exploring Sierra 10.12.5 sleep and wake in the log, 2 DAS and CTS

Sleep interrupts the scheduling and dispatch of background tasks. Here’s how it looks in the dispatching systems.

June 16, 2017 Macs, Technology

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