Re: [PATCH v4] thinkpad_acpi: Add support for dual fan control on select models

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On Thu, Apr 23, 2020 at 23:57:59 CEST, Lars <larsh@xxxxxxxxxx> wrote:
> This adds dual fan control for the following models:
> P50, P51, P52, P70, P71, P72, P1 gen1, X1E gen1, P2 gen2, and X1E gen2.
> 
> Both fans are controlled together as if they were a single fan.
> [...]
> Background:
> I tested the BIOS default behavior on my X1E gen2 and both fans are always
> changed together. So rather than adding controls for each fan, this controls
> both fans together as the BIOS would do.
Hi Lars, why have you chosen to control multiple fans in this way?
I know that BIOS controls both fans together, but the EC has the capabilities 
to control both fans independently, so maybe it can be convenient to expose 
this feature.


Distinti saluti/Best regards,
Dario Messina




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