2009/11/6 Urias McCullough <umccullough@xxxxxxxxx>: > On Fri, Nov 6, 2009 at 10:43 AM, Cian Duffy <myob87@xxxxxxxxx> wrote: >>> I have read some people having problems with certain hardware - I have >>> always thought these are interrupt-sharing related issues, or a bug in >>> the driver perhaps. Not scheduler-related at all. >>> >> >> All my working machines have HDA, unfortunately for checking this out; >> but I still have serious "spitching" problems with audio under load. >> One needs OSS, one doesn't, both have this problem though. > > Strange... > > I know on my AA1 for example with HDA - running the Big Buck Bunny > video (480p) while loading up the CPU doesn't make audio glitch (at > least not until I add enough load to make the video glitch as well). > > Perhaps it would maybe be worth aggregating some useful information (i > don't know which info, and please not in this thread) among people who > have issues and those who don't to see if there's a pattern that can > be used to track down the cause. To follow up on this, on the machine with a HDA that needs OSS I've put a very aged Creative EMU sound card in its single available PCI slot (mini-ATX+massive graphics card) and the audio glitching is down to maybe one drop out every few minutes under load rather than ten a minute. This is a native driver, not OSS. Unfortunately the other machine that uses a HDA with the native driver is an Acer Aspire like your own (albeit the very bog standard model - you might have something fancier?) and can't take a replacement card, but it does have the glitching issues also. Cian