I have a system running xubuntu 18.04. I have a problem with the stability of my system. From time to time the computer just reboots. Yesterday straight from desktop while the system was idling. Today while I was writing an email.
My first thought was the psu is broken. On the other hand, the psu is a quality one and big enough.
Additionally, I have sometimes complete system freezes were the image stays available, but the machine does not recognizes any mouse and keyboard inputs anymore.
So my question is, what would be a good strategy on finding the error.
For example where do I look after a sudden reboot or a system freeze? Or what shall Ill observe while using the system?
Thank you for your time M.