diff --git a/driver/audio_driver.c b/driver/audio_driver.c
index 3d9debd..cc6240e 100644
--- a/driver/audio_driver.c
+++ b/driver/audio_driver.c
@@ -936,6 +936,8 @@
             chip->dma_playback_offset = 0;
             chip->dma_playback_buffer = runtime->dma_area;
             chip->pcm_playback_buffer_size = snd_pcm_lib_buffer_bytes(chip->playback_substream);
+            // early startup to fix problem with read-write interleaved mode pre-buffering
+            chip->mr_alsa_audio_ops->start_interrupts(chip->ravenna_peer, 1);
         }
         else if(substream->stream == SNDRV_PCM_STREAM_CAPTURE)
         {
index 5a90eca..8023708 100644
--- a/driver/manager.c
+++ b/driver/manager.c
@@ -279,7 +279,7 @@
     }
     else {
         printk(KERN_DEBUG "starting playback I/O\n");
-        MuteOutputBuffer(self);
+        //MuteOutputBuffer(self);
         self->m_bIsPlaybackIO = true;
     }