Public bug reported:
When booting up Ubuntu 18.04 with a kernel version of 5.3.0-52 or later
(including 5.3.0-53), everything seems to be working as usual. However,
when I shutdown, the system will only soft shutdown, with the CPU still
running at full power, forcing me to hold down the power button to fully
power off affected systems. It is not possible for me to collect kernel
logs at this point, unless something wrong is happening in those kernel
versions before the actual shutdown.
It is possible that this may also occur on Ubuntu 20.04 with kernel
versions 5.4.0-29 and later, but I have not yet tested this out. This
problem is occurring on both my desktop and laptop computers which
respectively are:
* AsRock B450 Pro4 with AMD Ryzen 3 3200G APU
* Lenovo ThinkPad A485 with AMD Ryzen 5 Pro 2500U mobile APU
In the meantime, I am stuck on kernel version 5.3.0-51, as that is the
last working 5.3.x kernel version offered in the standard Ubuntu
repositories that doesn't have this problem, without me having to use
PPAs. I don't know if this problem also occurs on systems with Intel
CPUs, as I don't own any recently-made system (last 3 years from 2017)
with such CPUs to test if this problem occurs on them.
** Affects: linux-meta-hwe (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- Failing to shutdown/power off on AMD Ryzen CPUs
+ Failing to shutdown/power off on AMD Ryzen CPUs on kernel versions 5.3.0-52
and later
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https://bugs.launchpad.net/bugs/1880041
Title:
Failing to shutdown/power off on AMD Ryzen CPUs on kernel versions
5.3.0-52 and later
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