Hi Basically, the following errors appear everytime an Fn-FX combo is made ACPI Error: Result stack is empty! State=ffff8801eb0a7800 (20101013/dswstate-98) ACPI Exception: AE_AML_NO_RETURN_VALUE, Missing or null operand (20101013/dsutils-646) ACPI Exception: AE_AML_NO_RETURN_VALUE, While creating Arg 0 (20101013/dsutils-763) ACPI Error: Method parse/execution failed [\_SB_.VALZ.GETE] (Node ffff880225d76420), AE_AML_NO_RETURN_VALUE (20101013/psparse-537) ACPI Error: Method parse/execution failed [\_SB_.VALZ.INFO] (Node ffff880225d763f8), AE_AML_NO_RETURN_VALUE (20101013/psparse-537) IÂm not quite sure if this is a kernel or BIOS bug (or both). As far as I understand, the method is queried but nothing is returned... Or maybe IÂm misunderstanding something. Saludos Azael Avalos -- -- El mundo apesta y vosotros apestais tambien -- -- 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