This bug was fixed in the package acpi-call - 1.2.2-1
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acpi-call (1.2.2-1) unstable; urgency=medium
* [e4c61df] Remove '-guest' from Vcs-* URLs
* [022a8aa] Use nix-community repository as new upstream (Closes: #989384)
* [0776fac] New upstream version 1.2.2 (LP: #1953261,
It appears fixes from this fork are also required:
https://github.com/nix-community/acpi_call
See this blog post:
https://blog.monosoul.dev/2021/10/16/ubuntu-21-10-and-acpi-call-dkms-bug/
sudo dmesg | grep "BUG: kernel NULL pointer dereference" -A 10
[45420.141212] BUG: kernel NULL pointer
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: acpi-call (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1901452
Title:
