On Thu, Jun 15, 2017 at 4:14 PM, John Smart <sma...@gmail.com> wrote: > Package: pulseaudio > Version: pulseaudio 5.0 > Distro: Raspbian GNU/Linux 8.0 (jessie) > > When I playback audio using, for example, aplay, the first playback > works fine. Subsequent playback will hang indefinitely. Several > ctrl+c signals will restore playback for one additional play. > > Reproduction steps: > > 1. Download any wav: > wget http://ccrma.stanford.edu/~jos/wav/oboe-bassoon.wav > > 2. Use aplay to playback the sound: > > $ aplay oboe-bassoon.wav > Playing WAVE 'oboe-bassoon.wav' : Signed 16 bit Little Endian, Rate > 48000 Hz, Stereo > # plays ok > ^CAborted by signal Interrupt... > aplay: pcm_write:1939: write error: Interrupted system call > > $ aplay oboe-bassoon.wav > Playing WAVE 'oboe-bassoon.wav' : Signed 16 bit Little Endian, Rate > 48000 Hz, Stereo > # hangs without any playback > > I have tried loading PulseAudio daemon in verbose mode to see what > might be going on. When the process hangs, I see: > > D: [alsa-sink-bcm2835 ALSA] source.c: Processing rewind... > > I also see a lot of these warnings: > > D: [alsa-sink-bcm2835 ALSA] protocol-native.c: Implicit underrun of > 'ALSA Playback' > D: [alsa-sink-bcm2835 ALSA] sink.c: Found underrun 22784 bytes ago > (1792 bytes ahead in playback buffer) > D: [alsa-sink-bcm2835 ALSA] sink.c: Found underrun 22784 bytes ago > (1792 bytes ahead in playback buffer) > D: [alsa-sink-bcm2835 ALSA] sink.c: Found underrun 22784 bytes ago > (1792 bytes ahead in playback buffer) > D: [alsa-sink-bcm2835 ALSA] sink.c: Found underrun 22784 bytes ago > (1792 bytes ahead in playback buffer) > D: [alsa-sink-bcm2835 ALSA] sink.c: Found underrun 22784 bytes ago > (1792 bytes ahead in playback buffer) > D: [alsa-sink-bcm2835 ALSA] sink.c: Found underrun 22784 bytes ago > (1792 bytes ahead in playback buffer) > D: [alsa-sink-bcm2835 ALSA] sink.c: Found underrun 22784 bytes ago > (1792 bytes ahead in playback buffer) > D: [alsa-sink-bcm2835 ALSA] sink.c: Found underrun 22784 bytes ago > (1792 bytes ahead in playback buffer)
Sounds like a driver bug. Does it hang if you let the wav play to the end? -- Saludos, Felipe Sateler