Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 30 Jan 2007 20:39:41 -0500
From:      Kris Kennaway <kris@obsecurity.org>
To:        Joe Vender <jvender@owensboro.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: FreeBSD 6.1 & 6.2 hanging and/or spontaneous rebooting
Message-ID:  <20070131013941.GA59719@xor.obsecurity.org>
In-Reply-To: <200701301920.48499.jvender@owensboro.net>
References:  <200701301920.48499.jvender@owensboro.net>

next in thread | previous in thread | raw e-mail | index | archive | help

[-- Attachment #1 --]
On Tue, Jan 30, 2007 at 07:20:47PM -0600, Joe Vender wrote:
> I think I've fixed the spontaneous reboot and system hang problem I've been 
> having with FBSD 6.1 & 6.2 as described in earlier threads of the same 
> subject. I'm now using FBSD 6.2 to send this message.
> 
> What I did was to set a hint in /boot/device.hints and also /boot/loader.conf 
> to disable acpi
> hint.acpi.0.disabled="1"
> 
> and then I set a hint to enable apm
> hint.apm.0.disabled="0"
> hint.apm.0.flags="0x20"
> 
> plus I set apm and apmd to start at boot in /etc/rc.conf
> apm_enable="YES"
> apmd_enable="YES"
> 
> and in /boot/loader.conf, I put
> apm_load="YES"
> 
> The messages log shows that APM is being detected, and the computer now fully 
> powers down via "shutdown -p now".
> 
> I've a suggestion. It would be nice if freebsd could try to detect if acpi is 
> supported on the computer in which it is being installed, and if none is 
> found, it should completely disable acpi and then check if apm is supported. 
> It should then set the appropriate settings to enable the correct power 
> management support for the computer. This would prevent this particular 
> spontaneous rebooting and hanging on old computers like mine which are 
> pre-acpi but have apm support.

It does try to detect it; the problem is apparently that your BIOS
lies and says "yep, ACPI capable!", but is in fact too buggy to use.
Look for a BIOS update if possible.

kris
[-- Attachment #2 --]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (FreeBSD)

iD8DBQFFv/NcWry0BWjoQKURAoHkAKDHPJXwcsZ0ZOX5FcAL7JnQoIiJWACfe/Lq
w9/RODeYafIMi6a6+SXlHcc=
=w6Bt
-----END PGP SIGNATURE-----

Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070131013941.GA59719>