[alsa-devel] [PATCH]Support MCP89 and GT21x hdmi audio

VDR User user.vdr at gmail.com
Thu Mar 11 20:24:06 CET 2010

On Thu, Mar 11, 2010 at 10:32 AM, Jaroslav Kysela <perex at perex.cz> wrote:
>>>> [pid 22651] ioctl(21, 0x80044121, 0xb439d2cc) = -1 EPIPE (Broken pipe)
>>>> pcm_hw.c: snd_pcm_hw_delay() SNDRV_PCM_IOCTL_DELAY failed.
>>> -EPIPE means underrun condition.
>>> Try 'echo 101 > /proc/asound/card0/pcm0p/xrun_debug' and send dmesg
>>> output
>>> to check if the ring buffer pointer in the hda-intel driver does not
>>> return
>>> wrong values. Replace card0 and pcm0p with right identifiers (look to
>>> 'aplay
>>> -l' for right numbers).
>>> More info: http://www.alsa-project.org/main/index.php/XRUN_Debug
>> Hi, thanks for your further reply.  However, I don't see
>> "CONFIG_SND_PCM_XRUN_DEBUG" anywhere in the kernel config (both in
>> menuconfig or .config).
> All these parameters should be set: CONFIG_SND_PCM_XRUN_DEBUG,

Ok, I have now compiled the alsa snapshot with the following:

./configure --with-cards=hda-intel
--with-debug=verbose --enable-verbose-procfs --with-isapnp=no
--with-sequencer=no --with-oss=no --with-pcm-oss-plugins=no

Attached are samples of my dmesg and /var/log/syslog files.  Hopefully
there is some useful information there?

Best regards,
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