After upgrading to Monterey (now running 12.3.1) on a MacBook Pro (Retina, 15-inch, Mid 2015, without an external disk) every day or two my fan starts running and Activity Monitor shows fseventsd and sometimes also xagt or kernelmanagerd at the top of the CPU usage list. Disk Utility repair and reinstall Monterey have not helped. Restarting stops the problem until it recurs.
MacBook Pro 15″, macOS 12.3
bodhiagain wrote:
After upgrading to Monterey (now running 12.3.1) on a MacBook Pro (Retina, 15-inch, Mid 2015, without an external disk) every day or two my fan starts running and Activity Monitor shows fseventsd and sometimes also xagt or kernelmanagerd at the top of the CPU usage list. Disk Utility repair and reinstall Monterey have not helped. Restarting stops the problem until it recurs.
To trouble shoot further you can:
—SafeBoot How to use safe mode on your Mac - Apple Support
Takes a bit longer to get to the login screen, does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.
This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.
—Test issue in another user (or guest user) account Set up users, guests, and groups on Mac - Apple Support
This will tell you if it a universal issue or isolated to your user/admin account.
Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus
all known to cause issues on the macOS
bodhiagain wrote:
After upgrading to Monterey (now running 12.3.1) on a MacBook Pro (Retina, 15-inch, Mid 2015, without an external disk) every day or two my fan starts running and Activity Monitor shows fseventsd and sometimes also xagt or kernelmanagerd at the top of the CPU usage list. Disk Utility repair and reinstall Monterey have not helped. Restarting stops the problem until it recurs.
To trouble shoot further you can:
—SafeBoot How to use safe mode on your Mac - Apple Support
Takes a bit longer to get to the login screen, does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.
This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.
—Test issue in another user (or guest user) account Set up users, guests, and groups on Mac - Apple Support
This will tell you if it a universal issue or isolated to your user/admin account.
Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus
all known to cause issues on the macOS
fseventsd take high cpu and high memory
