Numerous ACPI BIOS Error (bug) errors during boot

[Anton Sudak]

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

[Alex Hung (alexhung)]

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.

[Anton Sudak (anton-sudak)]

Thank you for clarification. Yes, system looks stable. The only thing that bothers is that these messages are visible for a moment during power off/suspend.

Please close this ticket