Date: Wed, 17 Nov 2004 17:53:43 -0800 From: Nate Lawson <nate@root.org> To: Warner Losh <imp@rover.village.org> Cc: sos@DeepCore.dk Subject: Re: [PATCH] Please test: new ACPI release (20041105) import Message-ID: <419C00A7.7030300@root.org> In-Reply-To: <20041117.173409.104092741.imp@harmony.village.org> References: <419BB117.4070802@root.org> <20041117211943.E583E5D0A@ptavv.es.net> <20041117.173409.104092741.imp@harmony.village.org>
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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
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