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SubjectRe: [Alsa-user] Pb with simultaneous SATA and ALSA I/O
On Thu, 2006-10-05 at 22:52 +0100, Alan Cox wrote:
> Ar Iau, 2006-10-05 am 16:45 -0400, ysgrifennodd Lee Revell:
> > I've heard that some motherboards do evil stuff like implementing legacy drive
> > access modes using SMM which would cause dropouts without xruns
> > reported.
> They don't. SATA causes audio dropouts on some systems because its fast
> enough to starve the audio device of regular enough access to the PCI
> bus. If that is a problem the audio device should be tuning PCI
> latencies

OK. In fact the Windows driver and IIRC the OSS driver do tune PCI
latencies. But that can't be the problem here if analog playback is
unaffected. Sounds like electrical noise could be the issue...


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