From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Lincoln Baxter, III" Subject: Re: HP nc6400 v.03 or v.05 laptop ACPI fails after reboot, works again after booting windows Date: Sun, 17 Dec 2006 13:51:06 -0500 Message-ID: <4585919A.9060907@gmail.com> References: <457F37C0.3090003@gmail.com> <1165966936.29844.37.camel@pcjc2lap> <457FB1A1.2030602@gmail.com> <1166012707.22903.4.camel@pcjc2lap> <4582A607.8040302@gmail.com> <1166191807.7459.16.camel@pcjc2lap> <45832339.3050307@gmail.com> <20061216043002.GA29560@tangens.sinus.cz> <4583A779.3000902@gmail.com> <20061216081757.GA3571@invalid.invalid> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from wx-out-0506.google.com ([66.249.82.234]:17107 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932418AbWLQSvL (ORCPT ); Sun, 17 Dec 2006 13:51:11 -0500 Received: by wx-out-0506.google.com with SMTP id h27so1173575wxd for ; Sun, 17 Dec 2006 10:51:10 -0800 (PST) In-Reply-To: <20061216081757.GA3571@invalid.invalid> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org > As far as i know, the humming appears in windows too. I tested it with > the RMClock utility and on my laptop, switching to C4 was making the > humming. But every other C-State was quite. You should tune the timing > frquencies, like Pavel pointed out. > > But i'm curios, why on linux the C4-State does not show up. The maximum > working C-State on my system, on AC or battery is C3. Is there any > hidden switch to enable it? > > with regards, frank > > - > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html Ok, thank you. With regard to the timing frequencies Is that in reference to the Kernel Frequency for Latency? Eg. 1000 / 250 / 100 ? There's nothing that I've found the enable the C4 state. It would be nice, since that is definitely the most power saving state. And do you have any ideas why the sound would not occur in windows? I'm pretty sure it's using the lower power states, because battery lasts a heck of a lot longer than in gentoo. I'm not sure if I was using RMClock correctly, but it seems like the humming did not occur in windows. Perhaps you could give me a little guidance on how to use the tool properly? Thanks. Lincoln