I received the same sequence of ACPI errors. While I have no idea as to whether the ACPI errors are due to a bug in the ACPI package or if the errors are due to bad programming by my motherboard manufacturer (Lenovo or its subcontractor), nor do I know if this particular error is of any importance (I've found many ACPI errors do not result in any noticeable adverse effects), what I do know is that these errors are shown during quiet kernel bootup, and I'd prefer they weren't. :-)
More specifically, the following kernel ring buffer messages break through the "quiet" and "splash" kernel CLI options (as defined by GRUB_CMDLINE_LINUX variable in /etc/defaults/grub) and show up prior to kernel modesetting and the plymouth splash:
[ 0.733848] ACPI BIOS Error (bug): Failure creating named object [\_SB.PC00.SAT0.PRT0.PWRG], AE_ALREADY_EXISTS (20210730/dswload2-326)
[ 0.733868] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20210730/psobject-220)
[ 1.094250] pci 0000:00:07.0: DPC: RP PIO log size 0 is invalid
[ 1.098637] pci 0000:00:07.1: DPC: RP PIO log size 0 is invalid
Note that the ACPI messages above (that break through the "quiet" boot option) are not sequential in the kernel ring buffer messages; as such, I've provided my complete dmesg output after boot: https://pastebin.ubuntu.com/p/GB2YKXP8mw/.
I received the same sequence of ACPI errors. While I have no idea as to whether the ACPI errors are due to a bug in the ACPI package or if the errors are due to bad programming by my motherboard manufacturer (Lenovo or its subcontractor), nor do I know if this particular error is of any importance (I've found many ACPI errors do not result in any noticeable adverse effects), what I do know is that these errors are shown during quiet kernel bootup, and I'd prefer they weren't. :-)
Basic information about my system: /www.lenovo. com/us/ en/p/laptops/ thinkpad/ thinkpadp/ thinkpad- p17-gen- 2-(17-inch- intel)- mobile- workstation/ 20yu0066us
- Device: Lenovo Thinkpad P17
- Model: 20YU0066US
- BIOS: N37ET39W (1.20 ) [Released 04/15/2022]
- Device URL: https:/
More specifically, the following kernel ring buffer messages break through the "quiet" and "splash" kernel CLI options (as defined by GRUB_CMDLINE_LINUX variable in /etc/defaults/grub) and show up prior to kernel modesetting and the plymouth splash:
[ 0.733848] ACPI BIOS Error (bug): Failure creating named object [\_SB.PC00. SAT0.PRT0. PWRG], AE_ALREADY_EXISTS (20210730/ dswload2- 326) psobject- 220)
[ 0.733868] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20210730/
[ 1.094250] pci 0000:00:07.0: DPC: RP PIO log size 0 is invalid
[ 1.098637] pci 0000:00:07.1: DPC: RP PIO log size 0 is invalid
Note that the ACPI messages above (that break through the "quiet" boot option) are not sequential in the kernel ring buffer messages; as such, I've provided my complete dmesg output after boot: https:/ /pastebin. ubuntu. com/p/GB2YKXP8m w/.
Per the ACPI bug reporting docs (https:/ /wiki.ubuntu. com/DebuggingAC PI#Filing_ a_Bug_Report), the following is a collection of system details:
- lsb_release -a:
Distributor ID: Ubuntu
Description: Ubuntu 22.04 LTS
Release: 22.04
Codename: jammy
- uname -a:
Linux ptf 5.15.0-39-generic #42-Ubuntu SMP Thu Jun 9 23:42:32 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
- sudo lspci -vvnn: /pastebin. ubuntu. com/p/KVXnRjprC 7/
https:/
- sudo dmidecode: /pastebin. ubuntu. com/p/B4j82XNMZ v/
https:/
- sudo dmesg: /pastebin. ubuntu. com/p/GB2YKXP8m w/
https:/
- sudo dpkg -l: /pastebin. ubuntu. com/p/2mgqzw9v8 6/
https:/
Please advise if any additional information would be helpful.