[alsa-devel] FIXED by substituting 1.0.19 pcm_lib.c for 1.0.21 pcm_lib.c -> Re: ALSA 1.0.20 PCM Capture Problem (Does not happen on ALSA 1.0.19)

[Takashi Iwai]

At Fri, 15 May 2009 14:46:10 -0400,
Robert Krakora wrote:
> 
> I grabbed ALSA 1.0.20 and attempted to capture video from my Creative
> USB webcam and audio from my analog audio microphone. To my surprise
> there was audio being captured but only in bits and pieces, nothing
> audible. If I recorded the audio and played it back it sound like
> broken audio. I noticed this in the release notes:
> 
> [ALSA] pcm-midlevel: Add more strict buffer position checks based on jiffies
> 
> I assumed it had something to do with changes made in pcm_lib.c, so I
> replaced the ALSA 1.0.20 version of this file with the ALSA 1.0.19
> version, rebuilt and I am now able to capture audio again from my
> analog microphone.
> 
> I filed Bug Report 0004523 describing this problem.

Does this happen with the latest snapshot version below?
    ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz


Takashi