I am running endevouros on a Thinkpad P52. I face a problem once or twice a week whereby the system fails to resume from sleep (suspend). I have no idea what’s causing it and I always have to force restart. Today, I lost unsaved documents.
You can have a look at the output of journalctlhere. I suspended the laptop at 17:46 and tried to resume at 18:35. Let me know if you find something suspicious.
I also found this bug after diagnosing another user, but it may also be unrelated to your issue since this isn’t really about sleep, but the lock screen https://bugs.kde.org/show_bug.cgi?id=483163
Thanks, I’ll try it and report back here. However, as I mentioned in my original post, this happens once a week or so. I have no idea how to reproduce it.