Big Sur powerd process constant CPU 100%

Sorry to say x.x.62 just came back. My closed laptop all of a sudden started up the fan, so after a while I checked. X.X.62 is back and "powerd" is eating the resources once again. So for me it is only a temporary fix, as the system seems to repeatedly reinitializes X.X.62 without my doing!!

This fixes it, but for me, not permanently! :-(

Open Terminal

STEP 2-

Run this command:

pmset -g sched

(See if there are any listed events with dates and times. These are likely the culprits)

STEP 3

Run this command:

sudo -i

(This should enable you to run commands as the root user. The next line should appear beginning with “ root# “ to confirm this.

STEP 4

Run this command:

pmset schedule cancelall

(This command should wipe all scheduled power events away)

pmset repeat cancel

(This command should wipe all REPEAT power events away)

STEP 5

Run the command from STEP 2 again. If there were scheduled processes before, they should be gone now. Also, the Powerd process should be using little to no CPU.

Could it be, that after resetting NVRAM as explained here https://iboysoft.com/howto/mac-wont-wake-up-from-sleep.html the "undocumented feature" is gone. Restarted a few times, no ****** "powerd" as yet!!!

No, did not work. Still getting flash backs to 1962...

After days and days of research this simple line fixed it for me.

sudo pmset schedule cancelall

Do you guys also have the effect, that despite "Power saving" is turned OFF, the screen goes black after a while. When this happens, "wake at 04/12/62" comes back.

So it seems, that the power management is somehow the culprit here. As far as I can tell, a lot of options in the power management panel habe not been implemented (yet?).

In Germany we received update 3 today and 1962 is gone!!! After closing the lid and reopening the MAcBook I only have this " [0] wake at 08/10/2022 16:15:00 by 'com.apple.alarm.user-visible-com.apple.calaccessd.alarmEngine.alarm.name'", which I did not set. But "powerd" seems to be gone. Let's hope so!!!! So far the MacBook seems to be back to normal...

Well as Roberto saw it coming, my issue is not gone. It randomly starts during a restart (restarts in 1:30 min), after a certain time in sleep or even while using it. So it doesn't seem that theres a pattern but fot it to want me run a terminal line once a day.

Typing "...cancelall" gives me about 24-40 hours.

btw I'm on Ventura 22A5321d and theres no longer a way to set wake up schedules manually in settings. So you should solve it before updating.

Sorry to say, I was to quick with my assessment. "powerd" is back as before! :-( Was nice while it lastet. Just came back from walking the dog (maybe it is dependent on the time the lid is closed) and the fan on my closed MacBook was going full force!

I fixed this by running the following in terminal:

sudo pmset schedule cancelall

powerd instantly stops demanding 100%+ CPU and the fans soon spool down!

fixed it for me

FYI... I used this line in the Terminal to kill the process and it brought my CPU back down to normal:

sudo pmset schedule cancelall

Guys, here's the solution:

https://www.reddit.com/r/MacOSBeta/comments/wb0sh4/comment/ii74a9h/?utm_source=share&utm_medium=web2x&context=3

I'll add a me too to the list. I had 3 entries:

wake at 04/11/2262 19:47:16 by 'com.apple.alarm.user-visible-com.apple.email.SendLaterDelivery' User visible: true

removing them resolved the CPU issue so far.