diff --git a/src/pcm/pcm_dmix.c b/src/pcm/pcm_dmix.c
index 45b17fde..3add0645 100644
--- a/src/pcm/pcm_dmix.c
+++ b/src/pcm/pcm_dmix.c
@@ -595,6 +595,9 @@ static int snd_pcm_dmix_drain(snd_pcm_t *pcm)
 	stop_threshold = pcm->stop_threshold;
 	if (pcm->stop_threshold > pcm->buffer_size)
 		pcm->stop_threshold = pcm->buffer_size;
+	if (dmix->state == SND_PCM_STATE_PREPARED &&
+	    snd_pcm_mmap_playback_hw_avail(pcm) > 0)
+		snd_pcm_dmix_start(pcm);
 	while (dmix->state == SND_PCM_STATE_RUNNING) {
 		err = snd_pcm_dmix_sync_ptr(pcm);
 		if (err < 0)
diff --git a/src/pcm/pcm_dshare.c b/src/pcm/pcm_dshare.c
index 19e9351f..9b09a8b0 100644
--- a/src/pcm/pcm_dshare.c
+++ b/src/pcm/pcm_dshare.c
@@ -326,6 +326,9 @@ static int snd_pcm_dshare_drain(snd_pcm_t *pcm)
 	stop_threshold = pcm->stop_threshold;
 	if (pcm->stop_threshold > pcm->buffer_size)
 		pcm->stop_threshold = pcm->buffer_size;
+	if (dshare->state == SND_PCM_STATE_PREPARED &&
+	    snd_pcm_mmap_playback_hw_avail(pcm) > 0)
+		snd_pcm_dshare_start(pcm);
 	while (dshare->state == SND_PCM_STATE_RUNNING) {
 		err = snd_pcm_dshare_sync_ptr(pcm);
 		if (err < 0)