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bluetoothd high cpu usage

I am using macbook pro 2015 with Monterey version 12.1. Almost every time when I open the screen and login in the usage of cpu surges more then 200%. It's even stranger because mac isn't connected to any device! To fix it I turn off and on the bluetooth, which doesn't seem a good solution to me. Is there any better ways to fix it?

Posted on Dec 20, 2021 8:18 PM

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This appears to be fixed as of Monterey 12.3.

Posted on Mar 16, 2022 4:42 PM

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71 replies

Feb 6, 2022 7:29 AM in response to DickVH

Updated / Installed 12.2 - used the full installer over the previous 12.1). Again the problem returned after a few days. (Mid-2015 MacBook Pro 15") Seems happen after waking from sleep when raising lid) Only bluetooth accessory used occasionally with the MacBook are AirPods. Tried deleting all paired bluetooth devices and deleting 'com.apple.Bluetooth.plist' with a restart - no change. Issue returned next day. I read that "With Monterey, Apple has completely rewritten the bluetooth stack" so this is likely a bug with certain bluetooth cards used in these notebooks.

Feb 12, 2022 10:43 AM in response to armensanoyan

MacBook Pro Mid 2015. Problem persists even after update to Monterey 12.2.1. High CPU usage appears inconsistently and only once per day, directly after opening the lid in the morning. Manually quitting the process bluetoothd in Activity Monitor resolves the problem at least until the next morning. Fortunately and easy fix but remains a huge annoyance.

Feb 13, 2022 8:59 PM in response to shott85

shott85 wrote:

For me, the issue disappeared after I went into Bluetooth Preferences > Advanced and disabled the following two options:

That is interesting, shott85.


In fact, this seems to have a very logical connection, though the details are yet to be determined.


It may help to provide this information directly to Apple, via Apple’s Feedback: Product Feedback - Apple.

Feb 15, 2022 12:39 AM in response to shott85

Thanks, shott85, this sounded interesting. I disabled the two options in the preferences. But after two days high CPU usage of bluetoothd reappeared just like before. So unfortunately, this approach does not solve the issue, at least not for me.


I experimented by connecting an external monitor and bluetooth mouse I am using throughout the day and got some change in CPU usage. But I need to test more to find out what is affecting the problem with bluetooth. It is difficult to test because it is a rare problem and will take days or weeks to learn more. I will report back in case there are any updates.

Feb 15, 2022 2:41 PM in response to Zambal

Hey folks, I too can confirm that the solution I shared doesn't work. The issue returned a few days later :-(


For what it's worth, simply opening Bluetooth Preferences causes the bluetoothd process to stop freaking out (on my end).


I'm hopeful that Apple fixes this in the next OSX update because Bluetooth is a core function and no one enjoys loud fans, hot laps, and dead batteries.

Feb 15, 2022 6:16 PM in response to tree_frog

macOS 12.2.1 (released Feb 10, 2022) fixed some Bluetooth bugs, but it's not yet clear if it fixed this issue.


A quick recap for everyone:

This issue seems to be common to 2015 models. It looks like an OS bug that will require an update from Apple.


The following do not appear to work:

  • Re-installing the OS in-place (unlikely to fix this issue now that macOS uses a signed & sealed system volume).
  • Deleting Bluetooth configuration files.
  • Unchecking the options in the "Advanced…" section of Bluetooth preferences (pertaining to the Bluetooth Setup Assistant).


What to do now:

The best option for fixing that is for us all is still to submit a bug report to apple, and reference this thread. The more people that do this, the more likely it will be fixed.


https://www.apple.com/feedback/

(click "MacBook Pro" or "MacBook Air" under "Hardware").


Also, please make sure you include the version of macOS Monterey on all future posts! Otherwise it'll make future troubleshooting of this issue difficult.

bluetoothd high cpu usage

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