Update:
1. Leave it this way for awhile longer to see if it is truly fixed or if I've just been lucky so far
DONE -- Disabling the proprietary NVIDIA driver (version current) definitely resolved the issue, no random crashes at all.
2. Activate the NVIDIA proprietary driver (post-release update) to see if it has the same issue
DONE -- The post-release update driver induced the same random crashes.
@J Morris: Does disabling the proprietary drivers resolve your issue?
Update:
1. Leave it this way for awhile longer to see if it is truly fixed or if I've just been lucky so far
DONE -- Disabling the proprietary NVIDIA driver (version current) definitely resolved the issue, no random crashes at all.
2. Activate the NVIDIA proprietary driver (post-release update) to see if it has the same issue
DONE -- The post-release update driver induced the same random crashes.
@J Morris: Does disabling the proprietary drivers resolve your issue?