On Friday 20 July 2007 07:44, Zbyszek Szmek wrote: > System Information > Manufacturer: Acer > Product Name: TravelMate 5520 > Version: 0100 > Serial Number: LXTKT0X03472505E342000 > UUID: 92832300-1FE7-11DC-AD33-93244F26716C > Wake-up Type: Power Switch > SKU Number: Not Specified > Family: Not Specified > > Handle 0x0002, DMI type 2, 8 bytes > Base Board Information > Manufacturer: Acer > Product Name: TravelMate 5520 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