From: Sitsofe Wheeler <sitsofe@yahoo.com>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: Ian Campbell <ijc@hellion.org.uk>,
Valdis.Kletnieks@vt.edu, linux-kernel@vger.kernel.org
Subject: Re: High pitch noise when ACPI processor module is loaded.
Date: Mon, 25 Jan 2010 22:38:16 +0000 [thread overview]
Message-ID: <20100125223816.GA16685@sucs.org> (raw)
In-Reply-To: <alpine.DEB.2.00.1001251543450.4578@p34.internal.lan>
On Mon, Jan 25, 2010 at 03:46:06PM -0500, Justin Piszcz wrote:
>
> It would be nice if it were possible to find out what is causing it exactly
> in the acpi cpufreq module, as this problem does not occur in Windows 7 and
> I can achieve 3.6GHz in Windows 7 w/out any high pitch noise.
That may well be related to the interrupt frequency the kernel is
running with. I remember reading that a lower HZ were less likely to
cause chip whine on some machines...
http://www.thinkwiki.org/wiki/Problem_with_high_pitch_noises#Change_the_timer_interrupt_frequency
--
Sitsofe | http://sucs.org/~sits/
next prev parent reply other threads:[~2010-01-25 22:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-23 15:48 High pitch noise when ACPI processor module is loaded Justin Piszcz
2010-01-23 20:12 ` Rafael J. Wysocki
2010-01-23 20:42 ` Robert Hancock
2010-01-25 5:34 ` Valdis.Kletnieks
2010-01-25 9:26 ` Justin Piszcz
2010-01-25 9:56 ` Justin Piszcz
2010-01-25 10:10 ` Ian Campbell
2010-01-25 20:46 ` Justin Piszcz
2010-01-25 22:38 ` Sitsofe Wheeler [this message]
2010-01-25 12:33 ` Henrique de Moraes Holschuh
2010-01-25 12:41 ` Justin Piszcz
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