[pulseaudio-discuss] Very crackly audio and crashing from cpu overload

[Mark Greenwood]

On Friday 09 January 2009 00:23:32 Chris wrote:
> 2009/1/8 Renke Brausse <rbrausse at gmx.net>:
> > sorry, off topic - but I can't resist...
> >
> > Am Freitag, den 09.01.2009, 00:50 +0100 schrieb Lennart Poettering:
> >> and
> >> of course because software I write doesn't have any bugs!
> >
> > do you need a new job? just contact me :) [:p]
> 
> If you need a programmer who can produce obscure bugs out of thin air,
> I'm your man, otherwise go for Lennart!
> 
> Anyway, I tried the nv driver in case it was the nvidia taint messing
> up things but no change in behaviour.
> 
> Looking at Lennart's options, I doubt that the sound card driver is
> bad. The ICE1712 chip has been around for at least 6 years in my
> experience. My employer makes embedded Linux devices and we've used
> various M-Audio devices, all using the ICE1712 since RedHat 7.3!
> Doesn't make it impossible but quite unlikely.
> 
> Whilst I don't know much about the driver in detail, and I guess it
> hasn't been touched for a long time, I was under the impression it was
> a well documented and supported device. 
> 
> So I'm still thinking that the problem is related to my XOrg CPU usage
> and some kind of interrupt issue. When I was using the nvidia driver,
> CPU usage by Xorg was around 30-40%! Now I'm on the OSS nv driver and
> it's about 15-20% (think that's for 1 core only). Doesn't seem that
> much but maybe it's a timing issue related to interrupts.
> 
> I'll have a play with latencytop in the next few days. Thanks again
> for the help. I'm getting closer to sorting this out and if I do I'll
> try to post it web-wide so googlers can find it.

Just a thought, do you have any VIA chipsets on your motherboard? If you do, throw it away and buy another one. It'll save you hours of fruitlessly trying to find a software problem that doesn't exist. Don't ask me how I know this unless you want a rant... ;) 

Mark

> 
> Cheers, Chris.
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