- Joined
- Dec 4, 2019
- Messages
- 12
- Motherboard
- Gigabyte Z390 DESIGNARE
- CPU
- i5-9600K
- Graphics
- RX 580
- Mac
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- Classic Mac
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- Mobile Phone
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Several thoughts / suggestions:
- This suggests that macOS might have become corrupted -- i.e. one file or .plist in the "system" folder might have been accidentally damaged, whether due to hard reboot, forced power shutdown, misbehaving application or drivers, etc.
- Step 1:
- Boot from your backup disk and see whether the system is stable.
- If it's stable and the backup is not too old, try recovering from the backup (i.e. clone the backup back to the main disk).
- As you may know from reading the first part of Going the Extra Mile in Post #1, I separate my Home folder from the main system disk. This allows me to backup and restore just the System folder. It has helped on numerous occasions to fix these kinds of macOS anomalies.
- Step 2:
- This is a more drastic step.
- If the backup also suffers from this problem, then install macOS from scratch on a spare SSD -- a cheap SATA SSD attached to an external USB 3 enclosure. When installation is complete, do not install any of your third-party applications -- only use the apps that come bundled with macOS.
- Then check whether system is stable. If so, start installing your apps one by one until the problem resurfaces -- or hopefully the problem will not resurface at all. In this latter case (if problem does not resurface) then you'll have to continue installing your apps on the new disk and then make it the primary one by cloning it to the main SSD.
This is from quite a while ago, but I finally got around to completely re-installing Mojave from scratch, and the problem persists. Any other ideas? Maybe I should just finally update to Catalina and see if it happens there...