These ACPI errors are the results of missing BIOS's ACPI (EC) device "IEC" - the real EC devices are I_EC and H_EC. Therefore, accessing _SB.PCI0.LPCB.IEC.ECRD fails and causes a chain of failures.
The real impact is failing to access "_SB.PCI0.LPCB.I_EC.SEN2._TMP" (which access IEC.ECRD). _TMP is for reading temperatures. This means one of the temperature sensor may not be read correctly. However, it is just one of many sensors, and it can be one dummy sensor too. If you don't observe any odd behaviours, there is nothing to worry about. -- 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/1932336 Title: Numerous ACPI BIOS Error (bug) errors during boot Status in linux package in Ubuntu: New Bug description: I've noticed that on every boot numerous errors appears: [ 2.547015] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.IEC.ECRD], AE_NOT_FOUND (20201113/psargs-330) [ 2.547028] No Local Variables are initialized for Method [_TMP] [ 2.547030] No Arguments are initialized for method [_TMP] [ 2.547033] ACPI Error: Aborting method \_SB.PCI0.LPCB.I_EC.SEN2._TMP due to previous error (AE_NOT_FOUND) (20201113/psparse-529) [ 2.547381] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.IEC.ECRD], AE_NOT_FOUND (20201113/psargs-330) [ 2.547388] No Local Variables are initialized for Method [_TMP] [ 2.547389] No Arguments are initialized for method [_TMP] [ 2.547391] ACPI Error: Aborting method \_SB.PCI0.LPCB.I_EC.SEN2._TMP due to previous error (AE_NOT_FOUND) (20201113/psparse-529) [ 2.547398] thermal thermal_zone2: failed to read out thermal zone (-5) [ 2.547459] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.IEC.ECRD], AE_NOT_FOUND (20201113/psargs-330) [ 2.547465] No Local Variables are initialized for Method [_TMP] [ 2.547466] No Arguments are initialized for method [_TMP] [ 2.547468] ACPI Error: Aborting method \_SB.PCI0.LPCB.I_EC.SEN3._TMP due to previous error (AE_NOT_FOUND) (20201113/psparse-529) [ 2.547583] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.IEC.ECRD], AE_NOT_FOUND (20201113/psargs-330) [ 2.547589] No Local Variables are initialized for Method [_TMP] [ 2.547590] No Arguments are initialized for method [_TMP] [ 2.547592] ACPI Error: Aborting method \_SB.PCI0.LPCB.I_EC.SEN3._TMP due to previous error (AE_NOT_FOUND) (20201113/psparse-529) [ 2.547598] thermal thermal_zone3: failed to read out thermal zone (-5) [ 2.547642] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.IEC.ECRD], AE_NOT_FOUND (20201113/psargs-330) [ 2.547647] No Local Variables are initialized for Method [_TMP] [ 2.547648] No Arguments are initialized for method [_TMP] [ 2.547650] ACPI Error: Aborting method \_SB.PCI0.LPCB.I_EC.SEN4._TMP due to previous error (AE_NOT_FOUND) (20201113/psparse-529) [ 2.547901] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.IEC.ECRD], AE_NOT_FOUND (20201113/psargs-330) [ 2.547906] No Local Variables are initialized for Method [_TMP] [ 2.547907] No Arguments are initialized for method [_TMP] [ 2.547909] ACPI Error: Aborting method \_SB.PCI0.LPCB.I_EC.SEN4._TMP due to previous error (AE_NOT_FOUND) (20201113/psparse-529) [ 2.547915] thermal thermal_zone4: failed to read out thermal zone (-5) [ 2.547980] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.IEC.ECRD], AE_NOT_FOUND (20201113/psargs-330) [ 2.547985] No Local Variables are initialized for Method [_TMP] [ 2.547987] No Arguments are initialized for method [_TMP] [ 2.547988] ACPI Error: Aborting method \_SB.PCI0.LPCB.I_EC.SEN5._TMP due to previous error (AE_NOT_FOUND) (20201113/psparse-529) [ 2.548230] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.IEC.ECRD], AE_NOT_FOUND (20201113/psargs-330) [ 2.548235] No Local Variables are initialized for Method [_TMP] [ 2.548237] No Arguments are initialized for method [_TMP] [ 2.548238] ACPI Error: Aborting method \_SB.PCI0.LPCB.I_EC.SEN5._TMP due to previous error (AE_NOT_FOUND) (20201113/psparse-529) Seems that it's not affecting how PC works, just could be seen for a moment during poweroff/reboot. I'm not sure what could cause these errors so I don't know what else I can provide. This happens on the Lenovo AiO PC, full specs are listed here https://psref.lenovo.com/Detail/IdeaCentre/IdeaCentre_AIO_5_27IMB05?M=F0FA0066UA ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-image-generic 5.11.0.18.19 ProcVersionSignature: Ubuntu 5.11.0-18.19-generic 5.11.17 Uname: Linux 5.11.0-18-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu65.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: asudak 1816 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: GNOME Date: Thu Jun 17 18:27:43 2021 InstallationDate: Installed on 2021-04-13 (65 days ago) InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 174f:1800 Syntek Integrated RGB Camera Bus 001 Device 003: ID 8087:0029 Intel Corp. AX200 Bluetooth Bus 001 Device 002: ID 17ef:60a9 Lenovo Lenovo Essential Wireless Keyboard and Mouse Combo Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO F0FA0066UA ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-18-generic root=UUID=9ef69356-31e9-488f-9a6b-99e10c0ed863 ro quiet splash vt.handoff=7 RebootRequiredPkgs: gnome-shell RelatedPackageVersions: linux-restricted-modules-5.11.0-18-generic N/A linux-backports-modules-5.11.0-18-generic N/A linux-firmware 1.197.1 SourcePackage: linux UpgradeStatus: Upgraded to hirsute on 2021-04-18 (59 days ago) dmi.bios.date: 03/31/2021 dmi.bios.release: 1.32 dmi.bios.vendor: LENOVO dmi.bios.version: O4VKT32A dmi.board.asset.tag: INVALID dmi.board.name: 371F dmi.board.vendor: LENOVO dmi.board.version: SDK0J40688 WIN 3424143288435 dmi.chassis.type: 13 dmi.chassis.vendor: LENOVO dmi.chassis.version: 0.1 dmi.ec.firmware.release: 1.13 dmi.modalias: dmi:bvnLENOVO:bvrO4VKT32A:bd03/31/2021:br1.32:efr1.13:svnLENOVO:pnF0FA0066UA:pvrIdeaCentreAIO527IMB05:rvnLENOVO:rn371F:rvrSDK0J40688WIN3424143288435:cvnLENOVO:ct13:cvr0.1: dmi.product.family: IdeaCentre AIO 5 27IMB05 dmi.product.name: F0FA0066UA dmi.product.sku: LENOVO_MT_F0FA_BU_Lenovo_FM_IdeaCentre AIO 5 27IMB05 dmi.product.version: IdeaCentre AIO 5 27IMB05 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1932336/+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
