From owner-freebsd-acpi@FreeBSD.ORG Thu Nov 18 01:54:13 2004 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 458E716A4CE; Thu, 18 Nov 2004 01:54:13 +0000 (GMT) Received: from www.cryptography.com (li-22.members.linode.com [64.5.53.22]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0965743D4C; Thu, 18 Nov 2004 01:54:13 +0000 (GMT) (envelope-from nate@root.org) Received: from [10.0.0.34] (adsl-67-119-74-222.dsl.sntc01.pacbell.net [67.119.74.222]) by www.cryptography.com (8.12.8/8.12.8) with ESMTP id iAI1rvC4018177 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 17 Nov 2004 17:53:58 -0800 Message-ID: <419C00A7.7030300@root.org> Date: Wed, 17 Nov 2004 17:53:43 -0800 From: Nate Lawson User-Agent: Mozilla Thunderbird 0.9 (Windows/20041103) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Warner Losh References: <419BB117.4070802@root.org> <20041117211943.E583E5D0A@ptavv.es.net> <20041117.173409.104092741.imp@harmony.village.org> In-Reply-To: <20041117.173409.104092741.imp@harmony.village.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-acpi@FreeBSD.org cc: freebsd-current@FreeBSD.org cc: sos@DeepCore.dk Subject: Re: [PATCH] Please test: new ACPI release (20041105) import X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Nov 2004 01:54:13 -0000 Warner Losh wrote: >>I do suspect that this is a PCI power issue and not an ACPI issue, but >>I'd like to know if it shows up on more models. It is most obvious when >>playing a stream as the buffers keep emptying and the sound stops after >>a short time. Music is clearly too fast and high pitched, but at 10% >>overspeed, some may not notice. (Does Dr. Dre sound much different 10% >>faster?) > > I've flipped the sense of the PCI power sysctl in current. Once > that's sanner, we should investigate setting the power states on > resume. Not sure what to do about suspend, since I think that acpi > has different notions of what D level to put a device in for different > S levels and it would likely have to take care of that after giving > the device a chance to save state. > > Warner I have a patch in my tree to do this. I'll post it once it's well-tested. At the moment, setting UART to D3 appears to hang the system and I'm not sure why. -- Nate