Dear all, The new Thinkpad P15/P15s/P15v series all have dual fans. Simply enabling TPACPI_FAN_2CTL for the respective firmware is enough. I have tested the following patch on my P15 (with "N30..." firmware): I can control the second fan via /proc/acpi/ibm/fan, and the second fan now shows up in lm-sensors: $ sensors [...] thinkpad-isa-0000 Adapter: ISA adapter fan1: 0 RPM fan2: 0 RPM I have verified the corresponding entries for the P15v and P15s by looking at the name of the corresponding firmware blobs offered for download on the Lenovo website. Best, Matthias _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel