diff --git a/output_pa.c b/output_pa.c
index 8d02791..46e1cc8 100644
--- a/output_pa.c
+++ b/output_pa.c
@@ -58,13 +58,15 @@
 		LOG_WARN("error initialising port audio: %s", Pa_GetErrorText(err));
 		return;
 	}
-
+	
 	printf("Output devices:\n");
 	for (i = 0; i < Pa_GetDeviceCount(); ++i) {
-		printf("  %i - %s [%s]\n", i, Pa_GetDeviceInfo(i)->name, Pa_GetHostApiInfo(Pa_GetDeviceInfo(i)->hostApi)->name);
+		if (Pa_GetDeviceInfo(i)->maxOutputChannels) {
+			printf("  %i - %s [%s]\n", i, Pa_GetDeviceInfo(i)->name, Pa_GetHostApiInfo(Pa_GetDeviceInfo(i)->hostApi)->name);
+		}
 	}
 	printf("\n");
-
+	
  	if ((err = Pa_Terminate()) != paNoError) {
 		LOG_WARN("error closing port audio: %s", Pa_GetErrorText(err));
 	}
@@ -328,13 +330,22 @@
 static int pa_callback(const void *pa_input, void *pa_output, unsigned long pa_frames_wanted, 
 					   const PaStreamCallbackTimeInfo *time_info, PaStreamCallbackFlags statusFlags, void *userData) {
 	int ret;
+	double stream_time;
 	frames_t frames;
 
 	optr = (u8_t *)pa_output;
 
 	LOCK;
 
-	output.device_frames = (unsigned)((time_info->outputBufferDacTime - Pa_GetStreamTime(pa.stream)) * output.current_sample_rate);
+	stream_time = Pa_GetStreamTime(pa.stream);
+
+	if (time_info->outputBufferDacTime > stream_time) {
+		// workaround for wdm-ks which can return outputBufferDacTime with a different epoch
+		output.device_frames = (unsigned)((time_info->outputBufferDacTime - stream_time) * output.current_sample_rate);
+	} else {
+		output.device_frames = 0;
+	}
+
 	output.updated = gettime_ms();
 
 	frames = _output_frames(pa_frames_wanted);
diff --git a/slimproto.c b/slimproto.c
index 629cec4..da0cc9d 100644
--- a/slimproto.c
+++ b/slimproto.c
@@ -132,7 +132,12 @@
 	if (status.current_sample_rate && status.frames_played && status.frames_played > status.device_frames) {
 		ms_played = (u32_t)(((u64_t)(status.frames_played - status.device_frames) * (u64_t)1000) / (u64_t)status.current_sample_rate);
 		if (now > status.updated) ms_played += (now - status.updated);
+		LOG_SDEBUG("ms_played: %u (frames_played: %u device_frames: %u)", ms_played, status.frames_played, status.device_frames);
+	} else if (status.frames_played && now > status.stream_start) {
+		ms_played = now - status.stream_start;
+		LOG_SDEBUG("ms_played: %u using elapsed time (frames_played: %u device_frames: %u)", ms_played, status.frames_played, status.device_frames);
 	} else {
+		LOG_SDEBUG("ms_played: 0");
 		ms_played = 0;
 	}
 	
@@ -159,7 +164,7 @@
 	LOG_INFO("STAT: %s", event);
 
 	if (loglevel == lSDEBUG) {
-		LOG_SDEBUG("received bytesL: %u streambuf: %u outputbuf: %u calc elapsed: %u real elapsed: %u (diff: %u) device: %u delay: %d",
+		LOG_SDEBUG("received bytesL: %u streambuf: %u outputbuf: %u calc elapsed: %u real elapsed: %u (diff: %d) device: %u delay: %d",
 				   (u32_t)status.stream_bytes, status.stream_full, status.output_full, ms_played, now - status.stream_start,
 				   ms_played - now + status.stream_start, status.device_frames * 1000 / status.current_sample_rate, now - status.updated);
 	}