From: Bruno Ducrot <ducrot@poupinou.org>
To: Vince <legoll@online.fr>
Cc: linux-acpi@vger.kernel.org, cpufreq@lists.linux.org.uk
Subject: Re: Missing PSB or _PSS in BIOS
Date: Mon, 20 Feb 2006 12:00:51 +0100 [thread overview]
Message-ID: <20060220110051.GA15047@poupinou.org> (raw)
In-Reply-To: <43F7CDA2.8030209@online.fr>
On Sun, Feb 19, 2006 at 02:45:06AM +0100, Vince wrote:
> Hello,
>
> I'm using an opteron 165 (dual-core) which frequency/voltage should
> be able to be scaled, but unfortunately the latest BIOS for my motherboard
> lacks the frequency transition tables needed by powernow-k8.c
>
> as shown by the boot message:
> powernow-k8: MP systems not supported by PSB BIOS structure
> powernow-k8: BIOS error - no PSB or ACPI _PSS objects
>
> Would it be possible to write suitable ACPI _PSS from AMD processor
> documentation ?
> Or take the infos from some other ACPI BIOS which has support, and put
> it in mine ?
>
> And use the "ACPI load custom DSDT" kernel option to get the patched one
> used by the
> powernow-k8 driver ?
>
> I found a lot of infos about fixing glitches in DSDT but could not find
> anything
> about adding missing _PSS entries...
>
> Would that be dangerous ?
>
> Is there something else I could do ?
> I don't think I'll get an answer from the vendor, even if I tried...
>
First, check if 'Cool'n Quiet' is enabled in the bios. Second, if that
do not work, try to upgrade your bios. I had a similar problem with a
HP Proliant 385, and after upgrading it was (almost) ok (they just
forgot one p-state, but it was easy to add it afterward).
--
Bruno Ducrot
-- Which is worse: ignorance or apathy?
-- Don't know. Don't care.
next prev parent reply other threads:[~2006-02-20 11:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-19 1:45 Missing PSB or _PSS in BIOS Vince
2006-02-20 11:00 ` Bruno Ducrot [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-02-19 7:50 Brown, Len
2006-02-19 11:37 ` Vince
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