Re: [alsa-devel] Timer instability

On Mon, 23.02.09 03:56, Lennart Poettering (mznyfn@0pointer.de) wrote:

Hmm, for now my little testing experiment I've now found es1969, ens1371, intel8x0, snd-emu10k1 and some intel-hda to have unreliable _avail() or _delay().

And here's the output for HDA STAC92xx:

http://pastebin.mandriva.com/7149

The first dump is the interesting one: when audio starts to play the buffer abruptly runs empty in just 20us after the device started. (The rightmost column is the state btw, 3 == playing).

A quick overview of cards where _delay() and/or _avail() are unreliable:

es1969 ens1371 intel8x0 emu10k1 intel-hda on STAC92xx intel-hda on AD1989B

Lennart