Re: ACPI problems on Athlon MP system

[Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>]

Hi!

> I am not sure whether this is the correct place to ask this question,
> but hopefully you can point me in the right direction.
> 
> Here is the problem:
> I am trying to get the "poweroff" command working on an Athlon MP
> (Tyan S2462) system (linux-2.4.21-pre2; otherwise RedHat 7.3).
> 
> The machine has ACPI enabled in the bios. When I compile the kernel
> with ACPI disabled, the poweroff command shuts down the system, but
> does not shut off the power (it acts exactly like the halt command).
> In order to shutoff the machine I must press the power switch.
> 
> When I compile the kernel with ACPI enabled the situation is worse:
> the halt and poweroff commands still work in exactly the same way
> (shutdown the system), but now I cannot switch off the machine
> anymore: pressing the power switch has absolutely no effect
> (regardless of how long I hold the switch). The only way to
> switch off the machine is to either pull the power cord or to
> press the reset button on then the power switch (which will then
> switch off the machine when it reboots).

Try holding power switch for 5 seconds, that should switch it off.

> What am I doing wrong? Am I missing some kernel switches, options?
> Do I need additional software?

try echo 5 > /proc/acpi/sleep. If it powers down, what you see is
userland bug.

								Pavel

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