3 ms·

I have a Mac Mini and can't remember the last time I had to manually press the button. IIRC it even reboots on its own after a power outage. I think I shut it

I have a Mac Mini and can't remember the last time I had to manually press the button. IIRC it even reboots on its own after a power outage. I think I shut it down once for an extended vacation just to make sure appliances weren't on while I was gone and when I switched apartments. Otherwise I'd check and post my uptime from the command line. It's a launch M1 mini so I'd wager less times pressing the power button than I have fingers on one hand.

shuckles 2y ago
Apple Silicon devices turn on automatically from IO, even after shut down, so the power button is only useful to: force shutdown if unresponsive or execute some sort of boot key combo to enter a recovery mode.
- littlecranky67 2y ago
  And if you use bluetooth IO (non-apple). I do on my Mac Mini M2, and yet I have maybe pressed that button 3 times in the year that I am using it as my main machine as I never power it off.
drcongo 2y ago
I'd never thought about it before reading this comment but I now realise I don't even know where the power button on my Mac Studio is. I used it once when I first set it up and haven't touched it since.
jasomill 2y ago
IIRC it even reboots on its own after a power outage. While macOS presents a "Start up automatically after a power failure" option, and it works, the reality is…complicated. Intel Macs require a model-specific hardware register to be set after each reboot: https://web.archive.org/web/20230218203824/http://www.macfreek.nl/memory/Reboot_Mac_running_Linux_after_power_failure https://web.archive.org/web/20230218203824/http://www.macfre... The analogous setting on Apple Silicon Macs appears to be nonvolatile: https://github.com/AsahiLinux/linux/blob/de1c5a8be0ee99602e472f3ca861cc2d249597da/drivers/power/reset/macsmc-reboot.c#L87 https://github.com/AsahiLinux/linux/blob/de1c5a8be0ee99602e4...

shuckles 2y ago

Apple Silicon devices turn on automatically from IO, even after shut down, so the power button is only useful to: force shutdown if unresponsive or execute some sort of boot key combo to enter a recovery mode.

littlecranky67 2y ago
And if you use bluetooth IO (non-apple). I do on my Mac Mini M2, and yet I have maybe pressed that button 3 times in the year that I am using it as my main machine as I never power it off.

drcongo 2y ago

I'd never thought about it before reading this comment but I now realise I don't even know where the power button on my Mac Studio is. I used it once when I first set it up and haven't touched it since.

jasomill 2y ago

IIRC it even reboots on its own after a power outage. While macOS presents a "Start up automatically after a power failure" option, and it works, the reality is…complicated. Intel Macs require a model-specific hardware register to be set after each reboot: https://web.archive.org/web/20230218203824/http://www.macfreek.nl/memory/Reboot_Mac_running_Linux_after_power_failure https://web.archive.org/web/20230218203824/http://www.macfre... The analogous setting on Apple Silicon Macs appears to be nonvolatile: https://github.com/AsahiLinux/linux/blob/de1c5a8be0ee99602e472f3ca861cc2d249597da/drivers/power/reset/macsmc-reboot.c#L87 https://github.com/AsahiLinux/linux/blob/de1c5a8be0ee99602e4...