I found a related post here:
https://www.linuxliteos.com/forums/suggestions-and-feedback/possible-kernel-problems-with-ubuntu-18-04-and-latest-kernel/15/?PHPSESSID=sgfuljc5afl0kgfg1lsj4oltg1
My Toshiba laptop does not have any power settings in the BIOS, so I tried adding "acpi=off noapic" to the kernel boot parameters in grub 2. That fixed the problem. I'll proceed with the bisect, but I'm guessing it will come down to this.
I found a related post here:
https:/ /www.linuxliteo s.com/forums/ suggestions- and-feedback/ possible- kernel- problems- with-ubuntu- 18-04-and- latest- kernel/ 15/?PHPSESSID= sgfuljc5afl0kgf g1lsj4oltg1
My Toshiba laptop does not have any power settings in the BIOS, so I tried adding "acpi=off noapic" to the kernel boot parameters in grub 2. That fixed the problem. I'll proceed with the bisect, but I'm guessing it will come down to this.