linux-kernel - Re: [linux-pm] [PATCH] cpuidle: avoid singing capacitors

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Message-ID: <20080305134738.GC26199@elf.ucw.cz>
Date:	Wed, 5 Mar 2008 14:47:38 +0100
From:	Pavel Machek <pavel@....cz>
To:	Pierre Ossman <drzeus-list@...eus.cx>
Cc:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>,
	Dave Jones <davej@...emonkey.org.uk>,
	Andi Kleen <andi@...stfloor.org>,
	Alan Stern <stern@...land.harvard.edu>,
	LKML <linux-kernel@...r.kernel.org>,
	Adam Belay <abelay@...ell.com>,
	Lee Revell <rlrevell@...-job.com>,
	linux-pm@...ts.linux-foundation.org
Subject: Re: [linux-pm] [PATCH] cpuidle: avoid singing capacitors

On Wed 2008-03-05 14:42:05, Pierre Ossman wrote:
> On Wed, 5 Mar 2008 10:03:04 +0100
> Pavel Machek <pavel@....cz> wrote:
> 
> > 
> > Actually, there are more uncertaininties. Suspecting some machines
> > seemed to produce noise whenever they were in low-power state. Not
> > with fluctuations: when I forced them to low-power, it just produced
> > steady beep.
> > 
> 
> Ouch. How do I quickly test that here?

Setting cpufreq to lowest frequency reproduced it for me, but I guess
notebooks are different.

-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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