Questions tagged [power-management]
Questions about with tracking and reducing power-drain for computers or devices.
372
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Prevent screen dimming on Low Power Mode on macOS
When Low Power Mode is enabled on macOS, the screen seems to dim (even if the "Slightly dim the display on battery" option is disabled in Battery settings). However, when low power mode is ...
- 9,042
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Power failure or bug?
It looks like my power adapter or cable or something else (?) is failing. But it's a bit weird. When I plug in my 2019 Macbook Pro, several times I hear the "just plugged in" sound. What'...
- 5,065
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USB-C Sound Interface disconnects when Macbook Pro M3 sleeps and does not recover
When my 16" Macbook Pro M3 (November, 2023) goes to sleep, my Focusrite Scarlett 2i4 sound interface disconnects and I have to re-plug the USB-C cable back to get it working again.
It is plugged ...
- 223
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MacBook Pro 2011 is not charging
I have a MacBook Pro late 2011. It all started when my dog chewed through the magsafe charging cord. Then I wrapped the affected area with duct tape. The next day, I connected my macbook to the same ...
- 11
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pmset: Error 0xe00002db cancelling all scheduled events [duplicate]
I get the following behavior on my mac.
> sudo pmset schedule cancelall
pmset: Error 0xe00002db cancelling all scheduled events
> sudo pmset schedule cancel wake '04/13/2024 09:27:02'
pmset: ...
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How can I prevent macOS from rearranging windows?
macOS appears to rearrange windows, sometimes. I haven't figured out the exact circumstances, but it always seems to occur while the system is idle, usually long enough for the external monitor to ...
- 132
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How do I reset: sudo pmset -a disablesleep 1
I was messing around with pmset and I added this setting: sudo pmset -a disablesleep 1 in my terminal. I have got Amphetamine for my Mac, so I want to take off this pmset setting. How could I?
- 11
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Shutdown error that cannot be pinned down
Here is the issue in a nutshell: My machine has taken to giving me an error dialog that begins with the following on every restart or shutdown and restart, manual or otherwise:
You shut down your ...
- 135
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Can't find some kernel logs that could be seen in previous macOS versions
I am looking for the kernel log messages that are output during the macOS hibernation process. As an example:
8/20/14 11:58:40 AM kernel wired_pages_encrypted 60968, wired_pages_clear 39229, ...
- 61
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Mac Virtual Machine can't sleep
I have been running a macOS Ventura virtual machine using both UTM and Parallels on a Ventura host and have been trying to put the VM to sleep so I can monitor what happens with the logs. However, it ...
- 61
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Where is that "Put the hard disk(s) to sleep when possible" checkbox in modern macOS Sonoma etc. edition of the System Settings?
I would like to turn off the "Put the hard disk(s) to sleep when possible" feature is System Settings. Some folk say that will solve the mysterious problem of Disk not ejected properly error ...
- 12.9k
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Delays to Sleep and Wake notifications
Is it normal that there are Kernel Client Acks every so often while my Mac is asleep indicating that there are delays on several drivers? I found entries like this via the command: pmset -g log | grep ...
- 31
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macOS: Programmatically access the "Screen On Usage" data shown in Settings->Battery
How do I programmatically access the "Screen On Usage" data shown in Settings->Battery?
- 652
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Connect 2 power providing USB-C devices to MacBook Air M2
I have a "BenQ PD3420-Q9H" monitor, which is connected via USB-C to my MacBook Air M2 and delivers power to charge it. The monitor has a built-in hub, which is easy to use but not sufficient....
- 23
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Auto switch sound sink on power change
I like to switch various working positions at home. I want to make it change to the bluetooth speakers on power plugged in. And switch to internal speakers when unplugged. How to do it with some App ...
- 751