@madbiologist: Tried "acpi.power_nocheck=1" and "acpi_osi=linux", and the situation improved. Now the fan works at a low speed, but at least is cooling better. I'm attaching the output of dmidecode.
@madbiologist: Tried "acpi.power_ nocheck= 1" and "acpi_osi=linux", and the situation improved. Now the fan works at a low speed, but at least is cooling better. I'm attaching the output of dmidecode.