Thanks for the dmidecode. System Information Manufacturer: Hewlett-Packard Product Name: HP Pavilion dv9000 (GA358UA#ABA) Base Board Information Manufacturer: Quanta Product Name: 30B9 Another user with this board already sent the acpidump and we was confirmed that acpi_osi=Linux is a NOP on it. -Len - 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