Last night I upgraded my stationary desktop computer from Ubuntu 19.04 to 20.04. The upgrade went without any difficulty whatsoever.
Next day I found myself needing to use my 3D printer for a small project. I downloaded the model and began printing. The process was estimated to take just under 2 hours.
My printer is kind of loud so I decided to go and do something else in the mean time. About half an hour later I returned to find that my computer had gone into suspend, or hibernation or whatever, and that the printer was stopped in the middle of the model.
Why is my computer doing that, and how do I prevent that from happening? I never want my computer to hibernate for any reason at all.
I'm not a big fan of the Gnome desktop so I use XFCE 4.12. Here are my power settings (which are unaltered – this is how they have been all the time):
Everything looks pretty normal to me.
Any ideas? Also which logs can I check to see why my computer went into suspended state? This is kind of a huge deal for me, as I also leave my computer running for other reasons.