[alsa-devel] Problem with snd_hda_intel from 05-27-2010 snapshot

[Jaroslav Kysela]

On Sun, 30 May 2010, VDR User wrote:

> On Sun, May 30, 2010 at 8:37 AM, Jaroslav Kysela <perex at perex.cz> wrote:
>> Thanks. The wallclock register seems working OK. Please, use value 29 for
>> the xrun_debug file to do more accurate inspection what's going wrong (as I
>> suggested in my first reply):
>
> Attached is my full syslog with xrun_debug 29.

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;

-----
Jaroslav Kysela <perex at perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.