Hey again,
I realized the following message didn't get through. Therefore, I send
it again right now.
Sorry for any inconvenience!
Best reguards,
David
-------- Forwarded Message --------
Subject: [PATCH] Update whitelisted ThinkPad models with dual fan
support in thinkpad_acpi
Date: Tue, 4 Jan 2022 04:41:45 +0100
From: David Dreschner <david@xxxxxxxxxxxxx>
To: ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx
CC: platform-driver-x86@xxxxxxxxxxxxxxx
Hey guys,
the attached patch updates the list of whitelisted ThinkPad models with
dual fan support.
The changes were tested on my ThinkPad T15g Gen 2. According to Lenovo,
the BIOS version is the same for the P15 Gen 2 and the P17 Gen 2 (
https://pcsupport.lenovo.com/us/en/downloads/ds551321-bios-update-utility-bootable-cd-for-windows-10-64-bit-thinkpad-p15-gen-2-p17-gen-2-t15g-gen-2
).
I also added the P15v Gen 2 and T15p Gen 2 to the whitelist based on the
BIOS version listed on the Lenovo homepage (
https://pcsupport.lenovo.com/us/en/downloads/ds551356-bios-update-utility-bootable-cd-for-windows-10-64-bit-thinkpad-p15v-gen-2-t15p-gen-2
). The first generation had two fans and where covered by the whitelist
entry for the P15 Gen 2. As the second generation has two fans, too, I
made that change for completeness.
To apply the changes before it's merged in the mainline linux kernel, I
made a little dkms patch:
https://github.com/dreschner/thinkpad_acpi-dual-fan-patch
Best reguards,
David
8845c8845
< TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 (1st gen) / P15v (1st gen) */
---
> TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 / P17 / T15g / T15p / P15v (1st gen) */
8846a8847,8848
> TPACPI_Q_LNV3('N', '3', '7', TPACPI_FAN_2CTL), /* P15 / P17 / T15g (2nd gen) */
> TPACPI_Q_LNV3('N', '3', '8', TPACPI_FAN_2CTL), /* P15v / T15p (2nd gen) */
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