On Thu, Jun 13, 2002 at 03:54:13PM -0700, Paul Johnson wrote: | -----BEGIN PGP SIGNED MESSAGE----- | Hash: SHA1 | | On Thu, Jun 13, 2002 at 04:51:02AM -0500, Nick Traxler wrote: | > Everyone has been recommending APM for this, but my motherboard (Abit | > VP6) wouldn't turn the power supply off until I turned on ACPI in the | > kernel. Check up on this as well as APM. | | Depends on the board. Some use that [weird] ACPI standard instead of | APM like the rest of the world.
ACPI is new and less complete/mature (at least in linux). APM is
older, many buggy/limited BIOS implementations exist, and is more
mature (in linux at least). Either one should be able to power off
your machine, if your BIOS supports them.
(ACPI puts more control in the OS hands whereas APM requires the BIOS
manuf. to get it right)
| > ps - I heard that APM is turned off in the presence of SMP, so that may
| > have been the reason.
|
| I coulda sworn it could still kill power for it on SMP systems...
It can, if you override the defualts just right. I have no SMP
systems, so I don't remember the incantation. The reason APM is
usually disabled is due to potential race conditions or conflicts
between the 2 CPUs (eg one wants off, the other isn't done).
-D
--
Religion that God our Father accepts as pure and faultless is this: to
look after orphans and widows in their distress and to keep oneself from
being polluted by the world.
James 1:27
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