Re: High pitched noise from laptop: processor.c in linux 2.6

[Lee Revell]

On Wed, 2004-10-20 at 13:13, Måns Rullgård wrote:
> > I bet you could actually identify the singing capacitor using a
> > telephone toner wand.  IMHO this is a bad enough problem to RMA it. 
> 
> Not really, it's barely noticeable in a quiet room.

If you had bought that laptop for audio use (big market these days, just
look at all the FireWire/USB/PCMCIA sound hardware out there), then this
would be a fatal problem.

Of course, for such a user, a BIOS where the hardware constantly block
interrupts via SMM would also be a fatal problem because it ruins audio
latency.  According to Alan Cox this is most laptops these days!

I am beginning to suspect the only known good laptop for pro audio use
is a Powerbook :-/.  x86 laptops are just too cheaply made.

Lee

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/