I can confirm this bug in Ubuntu 14.04, banshee. syslog shows:
pulseaudio[1769]: [alsa-sink-ALC272 Analog] ratelimit.c: 206 events suppressed pulseaudio[1769]: [alsa-sink-ALC272 Analog] protocol-native.c: Failed to push data into queue
I can confirm this bug in Ubuntu 14.04, banshee. syslog shows:
pulseaudio[1769]: [alsa-sink-ALC272 Analog] ratelimit.c: 206 events suppressed
pulseaudio[1769]: [alsa-sink-ALC272 Analog] protocol-native.c: Failed to push data into queue