[Bug 1967703] [NEW] tlp causing sudden shutdowns, followed by reboot

[DiagonalArg]

Public bug reported:

Ubuntu 20.04.
Thinkpad W530.

I had `tlp` installed with acpi-call-dkms, which led to errors as described here:
https://bugs.launchpad.net/ubuntu/+source/acpi-call/+bug/1953261/

(Some details are available there with my posts.)

I removed these two packages and then took the advice of @linrunner to use the PPA to install tlp 1.5.0-2.  I did not install acpi-call-dkms 1.2.2, figuring I'd just wait for kernel 5.17:
https://bugs.launchpad.net/ubuntu/+source/acpi-call/+bug/1953261/comments/21

The result on first use after `tlp` install, was that I had a sudden
shutdown followed by reboot.  I didn't have a battery in my laptop and
so assumed the power had gone out.  So, I shut down, put the battery in
and restarted with the laptop connected to AC.  After some time (2
hours?) I had another sudden shutdown/ reboot.  They both felt as if the
power plug had been pulled.  It was at the third shutdown/reboot that I
decided to remove `tlp`.  I haven't had a problem since.

** Affects: tlp (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1967703

Title:
  tlp causing sudden shutdowns, followed by reboot

Status in tlp package in Ubuntu:
  New

Bug description:
  Ubuntu 20.04.
  Thinkpad W530.

  I had `tlp` installed with acpi-call-dkms, which led to errors as described here:
  https://bugs.launchpad.net/ubuntu/+source/acpi-call/+bug/1953261/

  (Some details are available there with my posts.)

  I removed these two packages and then took the advice of @linrunner to use the PPA to install tlp 1.5.0-2.  I did not install acpi-call-dkms 1.2.2, figuring I'd just wait for kernel 5.17:
  https://bugs.launchpad.net/ubuntu/+source/acpi-call/+bug/1953261/comments/21

  The result on first use after `tlp` install, was that I had a sudden
  shutdown followed by reboot.  I didn't have a battery in my laptop and
  so assumed the power had gone out.  So, I shut down, put the battery
  in and restarted with the laptop connected to AC.  After some time (2
  hours?) I had another sudden shutdown/ reboot.  They both felt as if
  the power plug had been pulled.  It was at the third shutdown/reboot
  that I decided to remove `tlp`.  I haven't had a problem since.

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