Some insight of the check on the history of this out of the many updates on the upstream bug:
On master branch this was introduced via: commit 159d8c274fd92438ca6d7068d7a5eeda157227f4 Author: Mika Westerberg <mika.westerb...@linux.intel.com> Date: Wed Jun 9 13:25:33 2021 +0300 ACPI: Pass the same capabilities to the _OSC regardless of the query flag And then reverted in: commit 2ca8e6285250c07a2e5a22ecbfd59b5a4ef73484 Author: Rafael J. Wysocki <rafael.j.wyso...@intel.com> Date: Wed Mar 16 13:37:44 2022 +0100 Revert "ACPI: Pass the same capabilities to the _OSC regardless of the query flag" In Ubuntu the revert landed in 5.15.33 upstream and 5.15.0-34 in Ubuntu. I'm not entirely sure yet (no access to the system atm) if the introduction or the revert caused it. But since it still happens to people I assume the latter. AFAICS no further new commit happened since then to resolve the problem for both cases ... -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1981783 Title: there is an ACPI error message every time it booting Status in Linux: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: there is the following message every time it boots [0.290526] ACPI BIOS Error (bug) : Could not resolve symbol [\_PR.CPU0._CPC]AE_NOT_FOUND (20210730/psargs-529) [0.290884] ACPI Error: Aborting method \_PR.CPU1._CPC due to previous error (AE_NOT_FOUND (20210730/psargs-529) [0.290526] ACPI BIOS Error (bug) : Could not resolve symbol [\_PR.CPU0._CPC]AE_NOT_FOUND (20210730/psargs-529) [0.290884] ACPI Error: Aborting method \_PR.CPU2._CPC due to previous error (AE_NOT_FOUND (20210730/psargs-529) ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: ubuntu-release-upgrader-core 1:20.04.38 ProcVersionSignature: Ubuntu 5.15.0-41.44~20.04.1-generic 5.15.39 Uname: Linux 5.15.0-41-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 CasperMD5CheckResult: skip CrashDB: ubuntu CurrentDesktop: ubuntu:GNOME Date: Fri Jul 15 11:15:30 2022 InstallationDate: Installed on 2022-04-21 (85 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: release-upgrade UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1981783/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp