ThinkPad T440 - i7 4th gen. - 12 GB RAM - UM 18.04 fully patched
I have recently added a new USB drive to my system. An old drive has been removed. Other external drives have shifted their mount points. Everything is saved in a clean fstab file.
Every time I reboot I get 'System program problem detected' with a 'Send report' button. I send the report. I notice that now there is continuous CPU usage fluctuating between 40% and 60% mostly, sometimes spiking past 70%. Video rendering of 1080p by Kdenlive, for example, takes about 60% CPU on average. At the same time, disk usage monitor shows spikes to around 20% every few seconds.
When I look in the GUI system monitor it does not tell me the process responsible. It is normal for this system to be idle most of the time. It is not my cloud backup service, because I recognize its usage pattern of CPU, network and disks.
Any suggestions, anyone? Thanks!