On Thursday 13 September 2007 05:51, Alessandro Di Marco wrote: > System Information > Manufacturer: Sony Corporation > Product Name: VGN-SZ38GP_C > Version: J0020Y9W > Serial Number: 28247270-7003707 > UUID: CEBBB8E0-5B3C-11D9-8796-0013A98B94A4 > Wake-up Type: Power Switch > > Handle 0x0002, DMI type 2, 10 bytes > Base Board Information > Manufacturer: Sony Corporation > Product Name: VAIO 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