Hi I installed Linux on a second hand Compaq Presario 17XL265 that I got recently. It is supposed to have ACPI (but no APM) support. Nevertheless, my Bios is blaclisted on the ACPI driver How do I know that is wrong with the BIOS and fix it with DSDT? I have been reading the theory and it looks quite confusing. Is there any simple, useful guide to this subject, that is, mending your ACPI implementation so that Linux works fine and perform energy saving tasks... ------------------------------ /\_/\ |O O| pepebuho_at_pananet.com ~~~~ Javier Perez ~~~~ While the night runs ~~~~ toward the day... m m Pepebuho watches from his high perch.