Re: [BUG 2579] linux 2.6.* sound problems

[Mike Fowler <linux-kernel@mlfowler.com>]

Ray Lee wrote:
> On 10/31/05, Patrizio Bassi <patrizio.bassi@gmail.com> wrote:
> 
>>starting from 2.6.0 (2 years ago) i have the following bug.
> 
> 
> Well, the problem probably started before then.
> 
> 
>>link: http://bugzilla.kernel.org/show_bug.cgi?id=2579
> 
> 
>>Please fix that...2 years' bug!
> 
> 
> Speaking as a programmer, that's not a lot to go off of to find the
> bug. I think everyone would agree it's a bug, but we'll need more help
> from you.
> 
> 
>>fast summary:
>>when playing audio and using a bit the harddisk (i.e. md5sum of a 200mb
>>file) i hear noises, related to disk activity. more hd is used, more chicks
>>and ZZZZ noises happen.
> 

This to me sounds more like an interference issue, something I have seen 
on many laptops (I used to repair them in a previous incarnation). It is 
often referred to as "the 50Hz/60Hz hum" or the "ground loop" see any of 
these:

-http://www.pcmus.com/power-grounding.htm
-http://en.wikipedia.org/wiki/Ground_loop_%28electricity%29

-- 
Mike Fowler
Registered Linux user: 379787

"I could be a genius if I just put my mind to it, and I,
I could do anything, if only I could get 'round to it"
-PULP 'Glory Days'