Comment 2 for bug 613963

Here more informations about the noise. Now using kernel 2.6.32-24
- The noise can be considered as intermittent high pitch sound, maybe correlated to http://forum.notebookreview.com/hp-envy-hdx/488821-envy-series-problem-high-pitch-sound-source-confirmed.html
- It doesn't came from speakers, they are from the central-right zone of the pc.
- Opening a video and setting audio to mute the noise disappears.
- When all CPUs are working (i7) the noise disappears.
- Turning off bluetooth and wifi the noise is reduced but not removed.
- This issue is only present during Kubuntu/Ubuntu use, on Windows 7 I don't get this issue.

I don't know, but maybe we can considerer this problem as a security issue correlated to kernel. Please help.