[alsa-devel] Which project to choose?

Raymond Yau superquad.vortex2 at gmail.com
Mon Jul 19 03:44:33 CEST 2010

2010/7/15 Colin Guthrie <gmane at colin.guthr.ie>

> 'Twas brillig, and Chris at 15/07/10 02:38 did gyre and gimble:
> > On Thu, 2010-07-15 at 08:08 +0800, Raymond Yau wrote:
> >
> >>> I posted both of those bug reports. Honestly, I just want it to work
> >>> without all the error output to syslog and thrashing of my HD for
> >>> minutes at a time. As I said, I've got the output of pulseaudio -vvvvv
> >>> if anyone would like to look at it and tell me what I need to do to fix
> >>> the problem.
> >>>
> >>> Chris
> >>>
> >>>
> >>>
> >> Just upload your current pulseaudio.log and output of alsa-info.sh to
> >> mandriva 's bugzilla
> >>
> >> Cannot obtain any conclusion based on the log which you have posted last
> >> year ( xmms)
> >>
> >> as Jaroslav Kysela said , need the real system time between I/O
> operations
> >> and you'll see if it's issue in the ALSA driver or a task scheduling
> >> problem.
> >
> > Here is the bug report with the outputs uploaded.
> >
> > https://qa.mandriva.com/show_bug.cgi?id=60169
> Well seeing as my process when getting such a bug is to report it here
> on behalf of the user, I suspect that this has reached a stalemate....
Refer to https://qa.mandriva.com/show_bug.cgi?id=56473#c10

I have installed mandriva 2010 on virtual box

when using xmms and libao output plugin to play system sound startup3.wav

xmms hang at the end of the playback only when enable buffering in libao
output plugin.(configure output plugin in xmms, unfortunately default is
enable buffering buffer size 3000 chunk size 1000)  ,

xmms does not hang when you disable the buffer or using liboss/libALSA
output plugin

The last message in the pulseaudio server is
D: protocol-native.c  'underrun on libao[xmms] playback stream' , 0 bytes in

The sound card seem running since hw_ptr and appl_ptr are increasing when
cat /proc/asound/card0/pcm0p/sub0/status

After a while , the following message appear

E:alsa-sink.c : ALSA woke us up to write new data , but there was actually
nothing to write!

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