diff --git a/spa/plugins/alsa/acp/acp.c b/spa/plugins/alsa/acp/acp.c
index c61817d0d..39475baf5 100644
--- a/spa/plugins/alsa/acp/acp.c
+++ b/spa/plugins/alsa/acp/acp.c
@@ -381,6 +381,7 @@ static int add_pro_profile(pa_card *impl, uint32_t index)
 							&try_period_size, &try_buffer_size,
 							0, NULL, NULL, false))) {
 				pa_alsa_init_proplist_pcm(NULL, m->output_proplist, m->output_pcm);
+				pa_proplist_setf(m->output_proplist, "clock.name", "api.alsa.%u", index);
 				snd_pcm_close(m->output_pcm);
 				m->output_pcm = NULL;
 				m->supported = true;
@@ -411,6 +412,7 @@ static int add_pro_profile(pa_card *impl, uint32_t index)
 							&try_period_size, &try_buffer_size,
 							0, NULL, NULL, false))) {
 				pa_alsa_init_proplist_pcm(NULL, m->input_proplist, m->input_pcm);
+				pa_proplist_setf(m->input_proplist, "clock.name", "api.alsa.%u", index);
 				snd_pcm_close(m->input_pcm);
 				m->input_pcm = NULL;
 				m->supported = true;
diff --git a/spa/plugins/alsa/alsa-pcm.c b/spa/plugins/alsa/alsa-pcm.c
index 165833d4f..de321ee3c 100644
--- a/spa/plugins/alsa/alsa-pcm.c
+++ b/spa/plugins/alsa/alsa-pcm.c
@@ -466,7 +466,9 @@ int spa_alsa_init(struct state *state, const struct spa_dict *info)
 	}
 	if (state->clock_name[0] == '\0')
 		snprintf(state->clock_name, sizeof(state->clock_name),
-				"api.alsa.%u", state->card_index);
+				"api.alsa.%s-%u",
+				state->stream == SND_PCM_STREAM_PLAYBACK ? "p" : "c",
+				state->card_index);
 
 	if (state->stream == SND_PCM_STREAM_PLAYBACK) {
 		state->is_iec958 = spa_strstartswith(state->props.device, "iec958");
@@ -1862,6 +1864,11 @@ static int setup_matching(struct state *state)
 		state->matching = false;
 
 	state->resample = ((uint32_t)state->rate != state->rate_denom) || state->matching;
+
+	spa_log_info(state->log, "driver clock:'%s'@%d our clock:'%s'@%d matching:%d resample:%d",
+			state->position->clock.name, state->rate_denom,
+			state->clock_name, state->rate,
+			state->matching, state->resample);
 	return 0;
 }