[alsa-devel] position_fix issue / snd-hda-intel / alsa <-> jack

Wolfgang Woehl tito at rumford.de
Mon Feb 11 22:22:27 CET 2008


I'm sorry I just kind of cc-dumped this in here without any why's and 
how's. It's the sum-up of a communication on jack-devel that left us 
irritated because our devices would perform so strangely.

Could someone confirm this or hint me towards anything?

Thanks, Wolfgang

Donnerstag, 7. Februar 2008 Wolfgang Woehl:

> For, at least, our two snd-hda-intel devices (ALC888 and 82801I
> (ICH9 Family)) both position_fix values (POSBUF and FIFO, 0 and 3
> respectively) produce ok sound, only that
> position_fix=0 makes alsa fine and jack crackle/sizzle
> position_fix=3 makes alsa crackle/sizzle and jack fine
> "alsa" meaning direct use of alsa and "jack" meaning (at least in
> my case) jack with the alsa backend.
> Here I have alsa-1.0.14-31.2 and jack-0.109.2-0.pm.1 (0.pm.1 stems
> from the packman repository, I guess)
> Wolfgang

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