I have a pretty standard hardware set up, Asrock TaiChi mb, 16G ram, NVidia 1050, couple hard disks. Running Ubuntu 18.10 with standard everything.
While still on 18.04 the system started crashing, just randomly freezing up while on the screen blank. Mouse/keys wouldn't wake it up. I ended up wiping the boot disk and installing 18.10 fresh, still random freezing. I think its happening more frequently as time goes on.
To get the system back, I have to turn the system off and leave it off for a couple minutes. Just restarting doesn't work. What I see when I power cycle is the normal bios startup screen, then a blank magenta screen that stays blank for several seconds, then (maybe) the magenta Ubuntu screen with the orange/white dots, and finally the login screen. This whole process seems to take much longer than it used to, especially the blank magenta screen.
I assume there is some piece of hardware that is overheating that is causing this since the box seems to need to cool down... but I have no idea how to figure out what is going on. Can someone please walk me thru how to figure out what is spazing out?