This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1894914
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: bionic
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https://bugs.launchpad.net/bugs/1894914
Title:
Ubuntu 16.04 HWE Kernel Fails to Shutdown/Reboot
Status in linux package in Ubuntu:
Incomplete
Bug description:
Running embedded hardware. After updates, the system hangs on reboot
(and shutdown).
This system has run various levels of Ubuntu 16.04 LTS and Ubuntu
16.04 LTS with HWE Kernel. This is the first major problem
encountered.
The system hangs on 'Reached Target Shutdown' with Kernels linux-
image-4.15.0-106-generic and linux-image-4.15.0-115-generic.
Installed and booted with linux-image-4.15.0-96-generic on the system
allows successful reboot.
In an attempt to bypass the issue, I tested all values for kernel
parameter reboot= with no success. I also forced acpi on/off and
tested setting noefi. None of these changes corrected the problem.
Description: Ubuntu 16.04.7 LTS
Release: 16.04
Ubuntu 4.15.0-115.116~16.04.1-generic 4.15.18
Installed Kernels (96 => Success, 115 => Fail)
ii linux-image-4.15.0-115-generic 4.15.0-115.116~16.04.1
ii linux-image-4.15.0-96-generic 4.15.0-96.97~16.04.1
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