Public bug reported:
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
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "version.log, lspci-vnvn.log, ubuntu-release.txt,
installed-kernels.txt"
https://bugs.launchpad.net/bugs/1894914/+attachment/5408850/+files/bug-report.tgz
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https://bugs.launchpad.net/bugs/1894914
Title:
Ubuntu 16.04 HWE Kernel Fails to Shutdown/Reboot
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