in that time i've had no re-occurrences of this bug.
// once powered up; I don't think it ever occurred first few sleeps; my normal routine is use machine during day & sleep [box] at night & bug started appearing a number of days after cold-boot. I've been forced to reboot since I removed caffeine+light-locker [xfs err; so rebooted to xfs_check etc) but so far all good :)
It's now quite a few sleep sessions since I `sudo apt remove light-locker caffeine`
Start-Date: 2018-06-06 14:55:33 settings: amd64 (1.5.0-0ubuntu2), light-locker:amd64 (1.8.0-1ubuntu1), caffeine:amd64 (2.9.4-1)
Commandline: apt remove caffeine light-locker
Requested-By: guiverc (1000)
Remove: light-locker-
End-Date: 2018-06-06 14:55:43
in that time i've had no re-occurrences of this bug.
// once powered up; I don't think it ever occurred first few sleeps; my normal routine is use machine during day & sleep [box] at night & bug started appearing a number of days after cold-boot. I've been forced to reboot since I removed caffeine+ light-locker [xfs err; so rebooted to xfs_check etc) but so far all good :)