Re: ACPI "Soft-off" power button only rebooting system, not poweringoff

From: Stephen Clark
Date: Thu Sep 18 2008 - 08:13:03 EST


Pavel Machek wrote:
On Wed 2008-09-17 08:33:50, Andrew Paprocki wrote:
On Wed, Sep 17, 2008 at 6:18 AM, Pavel Machek <pavel@xxxxxxx> wrote:
On Wed 2008-09-17 00:50:03, Andrew Paprocki wrote:
I have an AMD / Award BIOS based system which does not properly shut
off when I hold down the power button for 4 seconds. The BIOS is
configured to have "Soft-off" set to "Delay for 4 seconds" which is
supposed to power the machine off if the button is held that long.

I first thought this could be a BIOS bug, but this *only* appears to
happen while Linux is running. If the computer is running WinXP, it
Well, so the BIOS is broken. 4second hold should power down the
machine regardless of the operating system.
Yes, I agree.. I just find it strange that it works on the BIOS screen
as well as in GRUB, but as soon as Linux boots, it no longer works.
Since it works under WinXP, there must be some way to get it to work
properly from the OS side even it if means working around the bug
somehow.

Try noapic/nolapic/nosmp etc... and ask your vendor to fix the bios ;-).

Why do you say it is the BIOS when it shuts down properly from the GRUB prompt or from in WINXP?

--

"They that give up essential liberty to obtain temporary safety,
deserve neither liberty nor safety." (Ben Franklin)

"The course of history shows that as a government grows, liberty
decreases." (Thomas Jefferson)


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/