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SubjectRe: Mystery clicking under keyboard, 3.x only, SSD only
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On Mon, 2011-12-12 at 23:10 +0600, Alexander E. Patrakov wrote:
> This clicking can be related to the events when the device goes to deep
> powersaving levels. Fluctuations in the consumed current can lead to
> audible clicks due to bad screening of audio wires, loose ferrite cores
> in the coils, magnetostriction effect, etc.
>
> You can test this theory by running several copies of "yes > /dev/null"
> and thus eating 100% CPU. If this eliminates the clicking effect, then
> my guess is correct and you have to disable some of the deepest
> powersaving states to remove the clicks.

Got it in one! Causing 100% CPU utilization does indeed stop the
clicking. I will look for power saving settings that I can control.

Thanks,
Bill Gribble




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