Hi, when I tried to compile 2.4.22-rc2 + ACPI 20030813 I got a compilation error in setup.c. Adding a CONFIG_X86_IO_APIC around the offending places fixed the problem. See the attached diffs. Reading some recent messages on this mailing list, I think I should try to enable the kernel options LOCAL APIC and IO APIC for my laptop though... Regards, Stefan --- Stefan Becker E-Mail: Stefan.Becker-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org