>
> Hello
>
> While watching hi-definitions video, I've noticed a lots of audio
> drop-outs when watching movies with raw ac3 on spdif output (ac3
> decoding is done by my Yamaha amplifier).
>
> Long story short, I've been able to reproduce the problem when playing
> a raw ac3 stream with ac3dec while loading my SATA drive.
>
> I.e. run simultaneously:
> - ac3dec -C en.ac3
> - md5sum *.avi > /dev/null (on a sata drive)
>
> In this case, the audio is horribly chopped.
>
> So far, I've noticed that:
> - Playing ac3 while loading PATA drive (same commands) works perfectly
> - Playing PCM (with mplayer) on spdif while loading SATA leads to high
>   frequency noises (like a constinuous scritch-scritch)
>
> Since this problem is related to SATA, I don't know if it's a kernel
> bug or an alsa bug (or both ??).
>
> My system:
> - Advanced Linux Sound Architecture Driver Version 1.0.11rc4 (Wed Mar 22 
> 10:27:24 2006 UTC).
> - AMD Athlon(tm) XP 3200+
> - spdif output on Sound blaster Live 5.12 (emu10k1 driver)
> - Debian kernel 2.6.17-2-k7 v 2.6.17-8 (roughly 2.6.17.11)
>
> Does anyone know how to fix this problem ?
>
> Should I log a bug to alsa or kernel ?
>
> Thanks

as root cat /proc/interrupts , are your onboard sata and spdif sharing
interrupt? if so try changing bios settings or moving it into another
slot to change the interrupt.

Andy

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