Re: High pitch noise when ACPI processor module is loaded.

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From: Ian Campbell

Subject: Re: High pitch noise when ACPI processor module is loaded.

Date: Monday, January 25, 2010 - 3:10 am

On Mon, 2010-01-25 at 04:26 -0500, Justin Piszcz wrote:
quoted text> So the question remains, is it possible to utilize turbo boost (in Linux)
> without the high pitch noise from the ACPI processor module?

I have to use the max_cstate=2 option to processor.ko in order to not
have a similar high pitch noise. I suppose you might get away higher
values of max_cstate depending on your hardware. Battery life doesn't
seem to be too adversely impacted.

Ian.

-- 
Ian Campbell
Current Noise: Ephel Duath - Ruins (Deep Blue And Violet)

Hmm...  Which would do a better job at driving physicists crazy?  Travel
faster than light, or a floating-point boolean value?
		-- Michael Mol

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Messages in current thread:

High pitch noise when ACPI processor module is loaded., Justin Piszcz, (Sat Jan 23, 8:48 am)

Re: High pitch noise when ACPI processor module is loaded., Rafael J. Wysocki, (Sat Jan 23, 1:12 pm)

Re: High pitch noise when ACPI processor module is loaded., Robert Hancock, (Sat Jan 23, 1:42 pm)

Re: High pitch noise when ACPI processor module is loaded., Valdis.Kletnieks, (Sun Jan 24, 10:34 pm)

Re: High pitch noise when ACPI processor module is loaded., Justin Piszcz, (Mon Jan 25, 2:26 am)

Re: High pitch noise when ACPI processor module is loaded., Justin Piszcz, (Mon Jan 25, 2:56 am)

Re: High pitch noise when ACPI processor module is loaded., Ian Campbell, (Mon Jan 25, 3:10 am)

Re: High pitch noise when ACPI processor module is loaded., Henrique de Moraes H ..., (Mon Jan 25, 5:33 am)

Re: High pitch noise when ACPI processor module is loaded., Justin Piszcz, (Mon Jan 25, 5:41 am)

Re: High pitch noise when ACPI processor module is loaded., Justin Piszcz, (Mon Jan 25, 1:46 pm)

Re: High pitch noise when ACPI processor module is loaded., Sitsofe Wheeler, (Mon Jan 25, 3:38 pm)