speaker-test 1.0.14rc1

Playback device is plug:dmix6
Stream parameters are 48000Hz, S16_LE, 6 channels
WAV file(s)
ALSA lib pcm_direct.c:927:(snd_pcm_direct_initialize_slave) unable to set buffer size
ALSA lib pcm_dmix.c:876:(snd_pcm_dmix_open) unable to initialize slave
Playback open error: -22,Invalid argument
ALSA lib pcm_direct.c:927:(snd_pcm_direct_initialize_slave) unable to set buffer size
ALSA lib pcm_dmix.c:876:(snd_pcm_dmix_open) unable to initialize slave
Playback open error: -22,Invalid argument
ALSA lib pcm_direct.c:927:(snd_pcm_direct_initialize_slave) unable to set buffer size
ALSA lib pcm_dmix.c:876:(snd_pcm_dmix_open) unable to initialize slave
Playback open error: -22,Invalid argument
ALSA lib pcm_direct.c:927:(snd_pcm_direct_initialize_slave) unable to set buffer size
ALSA lib pcm_dmix.c:876:(snd_pcm_dmix_open) unable to initialize slave
Playback open error: -22,Invalid argument