Ancestors

Written by Stuart Langridge on 2025-01-20 at 18:01

I've got a macbook. I don't use it much, and it sits on the side desk. Yesterday I charged it to 100% (which I had to click on a thing in the menu to allow; it only wanted to go to 80%) and then afterwards unplugged it and closed the lid. Today I've just opened it and it's at 1% charge. Do they not suspend properly or something? Surely it shouldn't use battery power while the lid is closed?

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Toot

Written by Stuart Langridge on 2025-01-20 at 19:27

hm, I have had a thought about this macbook battery thing.

If the lid is closed (so it's suspended), and I connect power to it, I believe it might wake up according to a stackoverflow post. This is fine, because it's connected to power. But if I then disconnect the power again, still without ever having opened the lid... surely the laptop goes back to sleep again? Is it not clever enough to do that? It surely doesn't stay awake with the lid shut until the battery runs down?

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Descendants

Written by Stuart Langridge on 2025-01-20 at 21:39

I am updating this laptop to macos 15.2, to see if that fixes (a) battery things (b) activity monitor crashing with SIGILL now that I've run the bootup diagnostics once (c) after flushing nvram and SMC didn't help

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Written by Stuart Langridge on 2025-01-20 at 22:06

well, updating the OS has fixed Activity Monitor crashing on start, anyway, so that's presumably an improvement. Investigation continues.

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Written by Frank O'Dwyer on 2025-01-20 at 20:55

@sil it’s supposed to be clever enough to suspend to disk and fully hibernate.

Do you have anything like “wake for network” or “Power Nap” enabled?

If not then maybe it’s a piggy app preventing sleep, or an SMC reset might help https://support.apple.com/en-us/102605

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Written by Stuart Langridge on 2025-01-20 at 21:27

@fodwyer I do not have those things. Activity Monitor now refuses to start because it crashes with SIGILL, but before when it worked it showed no application that was preventing sleep. I have reset both nvram and SMC and it hasn't helped.

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Written by Jan Lehnardt :couchdb: on 2025-01-21 at 09:44

@sil have you been pointed to https://eclecticlight.co/2022/06/23/putting-the-insomniac-mac-to-sleep-help-is-at-hand/yet?

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Written by Stuart Langridge on 2025-01-21 at 11:31

@janl I hadn't, and thank you!

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