Bug 208963 - ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.RP09.PEGP.NVDN], AE_NOT_FOUND (20200528/psargs-330)
Summary: ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.RP09.PEGP.NVDN], A...
Status: RESOLVED DOCUMENTED
Alias: None
Product: ACPI
Classification: Unclassified
Component: Config-Tables (show other bugs)
Hardware: Intel Linux
: P1 normal
Assignee: acpi_config-tables
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-08-19 08:46 UTC by Garri
Modified: 2021-01-03 13:38 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.8.1
Subsystem:
Regression: No
Bisected commit-id:

Attachments
ACPI dump (1.17 MB, text/plain)
2020-08-19 08:46 UTC, Garri 		Details
dmesg log (70.65 KB, text/plain)
2020-08-19 08:46 UTC, Garri 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Garri 2020-08-19 08:46:11 UTC 
Created attachment 292023 [details]
ACPI dump

Hello,

I noticed the following kernel messages when I unplug the AC from my laptop Lenovo T490 (20RY-CTO1WW) running the Linux kernel 5.8.1 and the latest system firmware version 1.13:

[10868.562198] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.RP09.PEGP.NVDN], AE_NOT_FOUND (20200528/psargs-330)
[10868.562210] ACPI Error: Aborting method \_SB.PCI0.LPCB.EC._Q27 due to previous error (AE_NOT_FOUND) (20200528/psparse-529)


And when I plug it in again:

[13493.320146] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.RP09.PEGP.NVDN], AE_NOT_FOUND (20200528/psargs-330)
[13493.320173] ACPI Error: Aborting method \_SB.PCI0.LPCB.EC._Q26 due to previous error (AE_NOT_FOUND) (20200528/psparse-529)


However, I haven't experienced any problems because of that. For example, I see correct values returned by /sys/class/power_supply/BAT0/status.

Dmesg and acpidump are attached. Thank you.
Comment 1 Garri 2020-08-19 08:46:55 UTC 
Created attachment 292025 [details]
dmesg log
Comment 2 Zhang Rui 2021-01-03 13:38:28 UTC 
Hi, Garri,

thanks for reporting.

> [10868.562198] ACPI BIOS Error (bug): Could not resolve symbol
> [\_SB.PCI0.RP09.PEGP.NVDN], AE_NOT_FOUND (20200528/psargs-330)
> [10868.562210] ACPI Error: Aborting method \_SB.PCI0.LPCB.EC._Q27 due to
> previous error (AE_NOT_FOUND) (20200528/psparse-529)
> 
usually, these are caused by buggy BIOS, which can not be fixed in kernel.
> 
> 
> However, I haven't experienced any problems because of that. For example, I
> see correct values returned by /sys/class/power_supply/BAT0/status.
> 
Bug closed as we don't see any real issue caused by the buggy firmware.
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