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schulianjenk

Member

Registered: 2025-09-25

Posts: 2

ACPI debuging - Thinkpad T14s

Hi there,

my Lenovo thinkpad T14s G1 (AMD) only boots with kernel parameters like acpi=off or acpi.debug_layer=hardware acpi.debug_level=info and without AC connected (acpi=off works also while charging), otherwise it shuts down after the bootloader.
I'm assuming a firmware bug, but i'm not expecting lenovo to fix it in the future and i'd like to understand the issue deeper by myself.  as i know there are ways to work around issues like that.

can someone guide me to some good resources learning about that issue? or maybe take a look at the dumps attached in the links

https://0x0.st/KmxA.txt
here's the output of journalctl -k | grep -i acpi

https://0x0.st/Kmxu.txt
this is a disassembled acpidump

this is my first post, so i'd also like to thank everybody so much for this forum and their time
warmly

schulianjenk

Member

Registered: 2025-09-25

Posts: 2

Re: ACPI debuging - Thinkpad T14s

bump!