I've got a LM15 system that is shutting down itself every few days. This has happened twice now. After years of no problems or behaviour of this kind.
I checked the system and other logs and it shows a few entries from 3 days ago and then the long recent stuff from the boot this evening. Nothing that I can see that's an issue.
Any insight about how to diagnose this?
Is there some setting that might have gotten set that causes the machine to shut down?
I've got several LM systems, and have had for a few years now, and none have ever done this before.
System info here: