ACPI features, How should disable them?

[ibix]

I am running Mandrake 8.1 with my Dell Optiplex DGX 100, 500 mhz Celeron 128 Mb ram, i810 chipset.

I suspect that some troubles I was facing a few months ago when I logout of my system (my system hangs for a long time and I have to use the SysRq routine to reboot the computer) these problems now I believe have a direct link to the ACPI features my board support, but may be the kernel of Mandrake 8.1 does not support. even Win2k when I made some standbys the computer does not recover itself at full and sometimes I have to reboot and now I believe that the trouble may be related to ACPI features.

if I am wrong I am posting in the right place to clear out all my doubts

thanks in advance

[Dolda2000]

First of alll, are you absolutely sure that your mother board uses ACPI and not APM? (These are two competing standards for power management)

[ibix]

Sure, my motherboard support ACPI (Advanced Configuration and Power Interface) 1.0A, it also support DMI (Desktop Management Interface), remote reactivation via an integrated 3com NIC (disabled right now, by BIOS option).

[Dolda2000]

I know that the ACPI implementation in Linux is still a bit experimental; I don't even know if it's activated in the default distro kernels. You could try compiling your own kernel with ACPI enabled and see if that helps.