Dear all, On a recently bought Dell Latitude E5400 laptop with Debian unstable installed, the fan is constantly working. This happens although the temperature reported by acpi -v is around 30 degrees Celcius, and although top reports a CPU usage around 1%. Moreover, when the installed Windows XP is started and the machine is left untouched, the fan remains turned off all the time. Are these symptoms the consequence of a buggy DSDT which Windows overrides ? In that case, how can the problem be fixed ? Is it necessary to disassemble and study the DSDT, or is it possible to somehow fetch the working one presumably used by Windows XP ? Any help / suggestion warmly appreciated. Kind regards, Sebastien. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html