Thinkpad acpi_call not working on Debian Sid

From	Apurv J <appjoe.beta@gmail.com>
Newsgroups	linux.debian.user
Subject	Thinkpad acpi_call not working on Debian Sid
Date	2021-12-20 10:40 +0100
Message-ID	<Dwnjb-1aF-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi,

I've been trying use certain features offered by tlp (like discharging 
and re-calibration) but getting an error. Did a little digging and found 
out some clues as to what's going on.

output of "tlp-stat -b":
 > tpacpi-bat (acpi_call)  = inactive (kernel error)

searching in the logs using journalctl I got:
 > acpi_call: loading out-of-tree module taints kernel.
 > 440 kernel: acpi_call: module verification failed: signature and/or 
required key missing - tainting kernel

I'm using a Thinkpad T440, secureboot disabled. Kernel: /5.15.0-2-amd64./

Is this a bug?
//

Regards,
Apurv

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Thinkpad acpi_call not working on Debian Sid Apurv J <appjoe.beta@gmail.com> - 2021-12-20 10:40 +0100

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