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

[Patrizio Bassi <patrizio.bassi@gmail.com>]

Lee Revell ha scritto:
> On Mon, 2005-10-31 at 16:30 +0100, Patrizio Bassi wrote:
> 
>>starting from 2.6.0 (2 years ago) i have the following bug.
>>
>>link: http://bugzilla.kernel.org/show_bug.cgi?id=2579
>>and https://bugtrack.alsa-project.org/alsa-bug/view.php?id=230
>>
>>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.
>>
>>linux 2.4.x and windows has no problems, perfect.
>>tried module/standalone alsa drivers.
> 
> 
> Your problem is a "singing capacitor", caused by cheap motherboard
> components.  The problem appeared in 2.6.0 because that's when the timer
> frequency changed from 100HZ to 1000HZ.
> 
> Starting with 2.6.14 you can work around this by compiling with HZ set
> to 250 or 100.  But it's fundamentally a hardware problem.
> 
> Lee

I have an Asus P2B-F, it should be a value board and not a cheap one.

i have 250hz and it still happens.

i'll check with 100, even if i see it's suggested for server and not
desktop (my usage)