Re: [PATCH]Support MCP89 and GT21x hdmi audio

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On Thu, 11 Mar 2010, VDR User wrote:

> On Wed, Mar 10, 2010 at 11:30 PM, Jaroslav Kysela <perex@xxxxxxxx> wrote:
>> On Wed, 10 Mar 2010, VDR User 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, 
CONFIG_SND_VERBOSE_PROCFS, CONFIG_SND_DEBUG . I updated wiki.

 					Jaroslav

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

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