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Re: ACPI



> I have a computer with the BIOS specifically supporting ACPI.
> 
> But when I 'halt' it goes to 'Power Down' and then stops dead.
> But it never turns off.
> 
> Can I do something like append "ACPI=on" to the lilo/grub config and
> have the kernel pick up on that?

First, you have to have ACPI enabled in your kernel.  You don't say if you do, 
or what kernel you're running.

If you're using a 2.4 series kernel with ACPI enabled, you can "modprobe 
ospm_system" before power down (or mention ospm_system in your /etc/modules).  
ospm_system includes the acpi_power_off function.  If the module isn't loaded 
by the time you try to power down, then by the time it's needed the kernel 
module autoloader has already been shut down so you're SOL.

If you're using a 2.6 series kernel, you're going to have to wait for this to 
get resolved because it's an open bug:

http://bugme.osdl.org/show_bug.cgi?id=1141
http://bugme.osdl.org/show_bug.cgi?id=1355

(Actually two open bugs.)  If this is your case, please add your information 
to one of these two nug reports.  That will both help the ACPI authors to 
understand the problem, and also prod them by showing that it's more 
widespread.

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