System Information Manufacturer: Acer, inc. Product Name: Ferrari 5000 Version: Not Applicable Serial Number: LXFR50U059709101632500 UUID: 00658684-FD58-D811-856F-001636A654F8 Wake-up Type: Power Switch SKU Number: Not Specified Family: Not Specified Handle 0x0002, DMI type 2, 8 bytes Base Board Information Manufacturer: Acer, Inc. Product Name: Ferrari5 Thanks for the dmidecode output. Do you notice any functional difference when booting with "acpi_osi=Linux" (default for 2.6.22 and earlier) vs. "acpi_osi=!Linux" (default for 2.6.23 and later) Also, please send me the output from acpidump. thanks, -Len ps If you don't have acpidump, you can get it from pmtools here: http://www.lesswatts.org/projects/acpi/utilities.php - 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