Re: ACPI EC access misbehaving

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On Tue, Aug 5, 2025, at 7:58 PM, Damjan Georgievski wrote:
> hopefully last of my barrage of X9 issues
>
> I'm getting this in the kernel logs:
> kernel: thinkpad_acpi: ThinkPad ACPI EC access misbehaving, disabling
> thermal sensors access
>
> how concerned should I be about this?
>
> the system is the Thinkpad X9-14, or rather:
>
> ```
> kernel: DMI: LENOVO 21QA0048RM/21QA0048RM, BIOS N4DET30W (1.13 ) 04/02/2025
> ...
> kernel: ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
> ...
> kernel: thinkpad_acpi: ThinkPad BIOS N4DET30W (1.13 ), EC N4DHT29W
> kernel: thinkpad_acpi: Lenovo ThinkPad X9-14 Gen 1, model 21QA0048RM
> ```
>
Yep - known issue and still under analysis by our FW team.

Mark


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