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Experienced several times with my iMac not responding after it goes idle. The black screen won't response to any button on keyboard, not mouse, not trackpad.
I can only see the pointer on the screen which was not able to move either. I have to hold down the power button and force-shutdown-restart the computer to get back on.
Don't know what happen. Can anyone help?
iMac 21.5", macOS 10.14
Boot into Safe Mode and test the sleep mode from there. Reboot normally and test again.
NOTE: Safe Mode boot can take up to 10 minutes as it's doing some system cache cleaning, volume verifying and directory repairing.
Boot into Safe Mode and test the sleep mode from there. Reboot normally and test again.
NOTE: Safe Mode boot can take up to 10 minutes as it's doing some system cache cleaning, volume verifying and directory repairing.
The issue doesn't come back ever since I posted this question. Therefore I will give it a try when it happen again. I did read the link you posted, the EtreCheck seems quite complicated. Don't know if I can manage, but I will try. Thank you so much for your suggestion. I will post the report once I perform the check.
At this point to help troubleshoot your iMac, I suggest that you use EtreCheck to create a report and post it in your reply.
Ref: Using EtreCheck to Troubleshoot Potential… - Apple Community
The issue doesn't occur since the post. But I performed the safe mode which is easier for me. Hope the issue will not come back. Thank you very much for the help!
iMac not responding after idle
