It appears that at some point the nouveau driver may have been updated. Possibly when I installed mainline 4.17rc4 Kernel in recovery mode with network enabled. System no longer randomly locks up when booted in to kernel 4.15.
After installing Nvidia 396 driver and one final hard power off the OS will shutdown/restart successfully in 4.17 kernel at least. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1769376 Title: NMI watchdog: Watchdog detected hard LOCKUP on cpu x Status in linux package in Ubuntu: Incomplete Bug description: Machine: ASUS ROG GL753VE Laptop Clean install of Ubuntu 18.04 LTS (I've reinstalled several times and get same error). This is the error: NMI watchdog: Watchdog detected hard LOCKUP on cpu x (where x is some cpu #) I am also seeing the following errors at random: watchdog: BUG: soft lockup - CPU#X stuck for 23s! [kworker/3:0:29] watchdog: BUG: soft lockup - CPU#X stuck for 23s! [systemd-udevd:335] watchdog: BUG: soft lockup - CPU#X stuck for 23s! [systemd-udevd:575] Unfortunately due to the nature of this bug, I cannot gather any logs or report using the Terminal. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1769376/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp