Why does my iMac show 'Your computer restarted because of a problem'?

My macOS Sequoia 15.3.1 2 (24D70) has know generated an almost fault-free mac operation:-) Except for if I leave my mac unattended for some hours:-( --->BLACK SCREEN. To restart I have to cut the electricity, wait a little while. When restarting there is a note saying "there was a problem". Well, what may be the 'problem'?


[Re-Titled by Moderator]

iMac 27″, macOS 15.3

Posted on Feb 25, 2025 7:33 AM

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Question marked as Top-ranking reply

Posted on Feb 25, 2025 7:56 AM

hagakyrkogata wrote:


https://discussions.apple.com/content/attachment/f64a8587-b38a-47aa-acea-6aef3b964ee0
My macOS Sequoia 15.3.1 2 (24D70) has know generated an almost fault-free mac operation:-) Except for if I leave my mac unattended for some hours:-( --->BLACK SCREEN. To restart I have to cut the electricity, wait a little while. When restarting there is a note saying "there was a problem". Well, what may be the 'problem'?

[Re-Titled by Moderator]


the picture is truncated and useless


you can use the Additional txt feature to post the entire copied text.



Kernel Panics are predominately caused by hardware faults or faulty third-party kernel extensions.


Learn what to do if your computer restarts or shuts down unexpectedly, or you get a message that your computer restarted or shut down because of a problem.


If your Mac restarted because of a problem - Apple Support


unplug all non-essential peripherals when testing

Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS



To trouble shoot further you can:


—A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies


Does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, third party system modifications and system accelerations are disabled temporarily.

Login and test. Reboot as normal and test. Caches get rebuilt automatically.


This test will tell you if third party interference; most extensions etc are not loaded in safe boot mode.

 


—Test issue in another user (or guest user) account Change Users & Groups settings on Mac - Apple Support

This will tell you if it a universal issue or isolated to your user/admin account. 


3 replies
Question marked as Top-ranking reply

Feb 25, 2025 7:56 AM in response to hagakyrkogata

hagakyrkogata wrote:


https://discussions.apple.com/content/attachment/f64a8587-b38a-47aa-acea-6aef3b964ee0
My macOS Sequoia 15.3.1 2 (24D70) has know generated an almost fault-free mac operation:-) Except for if I leave my mac unattended for some hours:-( --->BLACK SCREEN. To restart I have to cut the electricity, wait a little while. When restarting there is a note saying "there was a problem". Well, what may be the 'problem'?

[Re-Titled by Moderator]


the picture is truncated and useless


you can use the Additional txt feature to post the entire copied text.



Kernel Panics are predominately caused by hardware faults or faulty third-party kernel extensions.


Learn what to do if your computer restarts or shuts down unexpectedly, or you get a message that your computer restarted or shut down because of a problem.


If your Mac restarted because of a problem - Apple Support


unplug all non-essential peripherals when testing

Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS



To trouble shoot further you can:


—A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies


Does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, third party system modifications and system accelerations are disabled temporarily.

Login and test. Reboot as normal and test. Caches get rebuilt automatically.


This test will tell you if third party interference; most extensions etc are not loaded in safe boot mode.

 


—Test issue in another user (or guest user) account Change Users & Groups settings on Mac - Apple Support

This will tell you if it a universal issue or isolated to your user/admin account. 


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Why does my iMac show 'Your computer restarted because of a problem'?

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