On Saturday 22 September 2007 07:07, Alexander Zabolotny wrote: > System Information > Manufacturer: Acer, inc. > Product Name: Aspire 5050 > Version: Not Applicable > Serial Number: LXAV40C0227120E9C42502 > UUID: 8047A5DB-A992-D811-9897-001636FE0630 > 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: Prespa M 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