ACPI disabled because your bios is from 00 and too old

[Simon Bell]

On looking at this mailing list i found the site http://acpi.sourceforge.net
which appears to show that my problems are to do with something called the
DSDT. The site has a fix for my motherboard but in order to use it i would
have to recompile my kernel, i think, which isn't something ive ever done
before so i wouldn't really be comfortable doing it. On further reading it
appears someone has written a patch to enable people to change there DSDT
without recompiling there kernel everything (
http://gaugusch.at/kernel.shtml ) which has been included with some distro's
of linux. Does anyone know if there is a change of having this included with
fedora? or if its already included and i dont know about it?

thanks
Simon 

-----Original Message-----
From: fedora-list-admin at redhat.com [mailto:fedora-list-admin at redhat.com] On
Behalf Of Dave Jones
Sent: 20 December 2003 19:30
To: fedora-list at redhat.com
Subject: Re: ACPI disabled because your bios is from 00 and too old

On Sat, 2003-12-20 at 18:35, Simon Bell wrote:
> Ive recently installed fedora core 1 onto an old desktop machine. It has
an
> Abit BP6 motherboard with 2 533 celeron cpu's in it. According to the BIOS
> and manual, it is ACPI enabled, but when i enable it in grub.conf i get an
> error saying my bios is to old and i should use acpi=force
> 
> Im just wondering what is actually wrong with my acpi bios? I was using
> power management on windows on this machine with no problems at all. Is it
> actually safe to enable acpi with the force option?

Like all heuristics, sometimes it makes the wrong decision.
It doesn't actually know if its bad, but it does trap an awful
lot of bios's that are bad from that era.

If you know for a fact that it works ok with acpi=force, filing
a bugzilla report with dmidecode info means we can whitelist it for
future kernels.

You may also want to run the same question by acpi-devel at lists.sf.net
to make sure no-one there knows of something bad in these systems.

	Dave


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