On Mon, May 31, 2010 at 11:30 AM, Jaroslav Kysela <perex@xxxxxxxx> wrote: > Thanks. Could you try this patch? > > diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c > index 170610e..ac3dbab 100644 > --- a/sound/pci/hda/hda_intel.c > +++ b/sound/pci/hda/hda_intel.c > @@ -1910,7 +1910,7 @@ static int azx_position_ok(struct azx *chip, struct > azx_dev *azx_dev) > if (WARN_ONCE(!azx_dev->period_bytes, > "hda-intel: zero azx_dev->period_bytes")) > return -1; /* this shouldn't happen! */ > - if (wallclk <= azx_dev->period_wallclk && > + if (wallclk < (azx_dev->period_wallclk * 3) / 2 && > pos % azx_dev->period_bytes > azx_dev->period_bytes / 2) > /* NG - it's below the first next period boundary */ > return bdl_pos_adj[chip->dev_index] ? 0 : -1; > > ----- I've got a bit of a strange result. With the above patch (and the wallclk logging patch from your previous email), sound does not work. However, it _does_ start working only if I `echo 29 > /proc/asound/card1/pcm3p/xrun_debug`. I tested these results with a reboot in between each attempt just to make sure I'm working with a clean boot. I can't imagine what's causing this weird condition. Any ideas? Best regards, Derek _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel