'Twas brillig, and Raymond Yau at 19/07/10 07:35 did gyre and gimble: > 2010/7/19 Chris <cpollock@xxxxxxxxxxxxxx> > >> On Mon, 2010-07-19 at 09:44 +0800, Raymond Yau wrote: >> >>>> >>> 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 >>> queue. >>> >>> 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! >> The above is exactly what I see periodically Raymond, so, what, if any, >> is the fix? >> >> Chris >> >> > Do you mean that you cannot reproduce the xmms hang bug on your ens1371 or > via8237 ? > > xmms always hang/freeze at 4 second as xmms display the total length of > startup3.wav is 5 seconds > > you have to ask mandriva 's maintainer why enable buffering is the default > option since xmms did not hang when I disable buffering in libao plugin > > For fefora 10 and 13 , they only provide liboss, libALSA and libpulse plugin > for xmms > I have no idea about the chunk size in libao plugin With a clean user account, I could not reproduce either problem with the default settings. FWIW, running PA under virtualbox is quite different to running it under a real system. For example PA will enable the non-timer based mode automatically when under a virtual machine. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/] _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
