From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bruno Ducrot Subject: Re: Missing PSB or _PSS in BIOS Date: Mon, 20 Feb 2006 12:00:51 +0100 Message-ID: <20060220110051.GA15047@poupinou.org> References: <43F7CDA2.8030209@online.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from poup.poupinou.org ([195.101.94.96]:34593 "EHLO poup.poupinou.org") by vger.kernel.org with ESMTP id S964880AbWBTLAy (ORCPT ); Mon, 20 Feb 2006 06:00:54 -0500 Content-Disposition: inline In-Reply-To: <43F7CDA2.8030209@online.fr> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Vince Cc: linux-acpi@vger.kernel.org, cpufreq@lists.linux.org.uk 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.