If you power your Mac from a UPS with a USB connection, sleep may not be all it’s supposed to be.
Energy Saver
Full details of the new battery health management feature in 10.15.5, and how to monitor battery health.
What are the benefits to leaving your Mac running all the time? And the costs? Which should you choose to do?
From hardware diagnostics to pmset and resetting the SMC, all you need to know about diagnosing wake and sleep problems.
The cat broke my UPS. Here’s how I chose its replacement, and installed it despite the cat. Why are they sold by so few outlets, though?
Shutdown cause codes, wake reasons, ACPI, and sleep states – diagnosing problems from hardware events.
Lists bugs in macOS itself, not those manifest in third-party software running on it. Please report and I’ll keep the list updated.
Can your Mac control sleep of its display, disks and system independently of one another? Many can’t.
Currently they all look like old bugs, some going right back to Mavericks and earlier.
Sierra 10.12.4 has had a lot of significant bugs fixed, at last. Here’s a list of those known to remain.
