linux-kernel - Re: ACPI "Soft-off" power button only rebooting system, not powering off

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 17 Sep 2008 08:33:50 -0400
From:	"Andrew Paprocki" <andrew@...iboo.com>
To:	"Pavel Machek" <pavel@...e.cz>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: ACPI "Soft-off" power button only rebooting system, not powering off

On Wed, Sep 17, 2008 at 6:18 AM, Pavel Machek <pavel@...e.cz> 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.

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