Also have this bug. Kernel: 5.15.0.91. Cpu: Intel N3530. Kubuntu 5.27.4. Dual-boot laptop with windows 10. First started seeing this with an earlier Kubuntu version but unfortunately don't know which one, it may have been since 2021 or even earlier. Also have intermittent power-offs with no warning, but don't know if that's related/relevant.
-- 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/1983180 Title: ACPI Error _CPC not found Status in Linux: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: just recently (I guess since the last update) I get a few ACPI error messages during start up. Those are also visible with dmesg: ... [ 0.713907] ACPI: AC: AC Adapter [AC] (on-line) [ 0.713978] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input0 [ 0.714011] ACPI: button: Sleep Button [SLPB] [ 0.714040] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input1 [ 0.714061] ACPI: button: Lid Switch [LID] [ 0.714087] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2 [ 0.714105] ACPI: button: Power Button [PWRF] [ 0.714187] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.714199] No Local Variables are initialized for Method [_CPC] [ 0.714201] No Arguments are initialized for method [_CPC] [ 0.714203] ACPI Error: Aborting method \_SB.PR01._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.714395] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.714404] No Local Variables are initialized for Method [_CPC] [ 0.714405] No Arguments are initialized for method [_CPC] [ 0.714407] ACPI Error: Aborting method \_SB.PR02._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.714480] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.714488] No Local Variables are initialized for Method [_CPC] [ 0.714490] No Arguments are initialized for method [_CPC] [ 0.714492] ACPI Error: Aborting method \_SB.PR03._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.714640] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.714651] No Local Variables are initialized for Method [_CPC] [ 0.714653] No Arguments are initialized for method [_CPC] [ 0.714655] ACPI Error: Aborting method \_SB.PR04._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.714940] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.714952] No Local Variables are initialized for Method [_CPC] [ 0.714953] No Arguments are initialized for method [_CPC] [ 0.714955] ACPI Error: Aborting method \_SB.PR05._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.715106] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.715118] No Local Variables are initialized for Method [_CPC] [ 0.715119] No Arguments are initialized for method [_CPC] [ 0.715121] ACPI Error: Aborting method \_SB.PR06._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.715309] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.715321] No Local Variables are initialized for Method [_CPC] [ 0.715322] No Arguments are initialized for method [_CPC] [ 0.715324] ACPI Error: Aborting method \_SB.PR07._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.715611] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.715623] No Local Variables are initialized for Method [_CPC] [ 0.715624] No Arguments are initialized for method [_CPC] [ 0.715626] ACPI Error: Aborting method \_SB.PR08._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.716055] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.716067] No Local Variables are initialized for Method [_CPC] [ 0.716069] No Arguments are initialized for method [_CPC] [ 0.716071] ACPI Error: Aborting method \_SB.PR09._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.716360] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.716371] No Local Variables are initialized for Method [_CPC] [ 0.716373] No Arguments are initialized for method [_CPC] [ 0.716375] ACPI Error: Aborting method \_SB.PR10._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.716669] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PR00._CPC], AE_NOT_FOUND (20210730/psargs-330) [ 0.716681] No Local Variables are initialized for Method [_CPC] [ 0.716682] No Arguments are initialized for method [_CPC] [ 0.716684] ACPI Error: Aborting method \_SB.PR11._CPC due to previous error (AE_NOT_FOUND) (20210730/psparse-529) [ 0.720501] thermal LNXTHERM:00: registered as thermal_zone0 [ 0.720504] ACPI: thermal: Thermal Zone [THM0] (64 C) ... Searching the internet shows that many people with different computers are affected by that. Probably it's a regression in the Linux kernel as described at: https://bugzilla.kernel.org/show_bug.cgi?id=213023 ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-5.15.0-43-generic 5.15.0-43.46 ProcVersionSignature: Ubuntu 5.15.0-43.46-generic 5.15.39 Uname: Linux 5.15.0-43-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: cm 2717 F.... pulseaudio /dev/snd/controlC1: cm 2717 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: KDE Date: Sat Jul 30 16:16:46 2022 HibernationDevice: #RESUME=UUID=9cd06200-ed0e-4f66-9baa-a3977c6b59e0 RESUME=/dev/mapper/GROUP-SWAP InstallationDate: Installed on 2018-10-10 (1388 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20MBCTO1WW ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-43-generic root=/dev/mapper/GROUP-ROOT ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.15.0-43-generic N/A linux-backports-modules-5.15.0-43-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.3 SourcePackage: linux UpgradeStatus: Upgraded to jammy on 2022-07-24 (5 days ago) dmi.bios.date: 06/10/2022 dmi.bios.release: 1.47 dmi.bios.vendor: LENOVO dmi.bios.version: N2CET64W (1.47 ) dmi.board.asset.tag: Not Available dmi.board.name: 20MBCTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.16 dmi.modalias: dmi:bvnLENOVO:bvrN2CET64W(1.47):bd06/10/2022:br1.47:efr1.16:svnLENOVO:pn20MBCTO1WW:pvrThinkPadP72:rvnLENOVO:rn20MBCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20MB_BU_Think_FM_ThinkPadP72: dmi.product.family: ThinkPad P72 dmi.product.name: 20MBCTO1WW dmi.product.sku: LENOVO_MT_20MB_BU_Think_FM_ThinkPad P72 dmi.product.version: ThinkPad P72 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1983180/+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
