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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1967703 Title: tlp causing sudden shutdowns, followed by reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/tlp/+bug/1967703/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
