diff --git a/spa/include/spa/param/param.h b/spa/include/spa/param/param.h
index 7a870ffea..90db84403 100644
--- a/spa/include/spa/param/param.h
+++ b/spa/include/spa/param/param.h
@@ -72,7 +72,9 @@ struct spa_param_info {
 	uint32_t flags;
 	uint32_t user;			/**< private user field. You can use this to keep
 					  *  state. */
-	uint32_t padding[5];
+	int32_t seq;			/**< private seq field. You can use this to keep
+					  *  state of a pending update. */
+	uint32_t padding[4];
 };
 
 #define SPA_PARAM_INFO(id,flags) ((struct spa_param_info){ (id), (flags) })
diff --git a/src/modules/module-protocol-pulse/manager.c b/src/modules/module-protocol-pulse/manager.c
index bff491eef..7aa8d70bd 100644
--- a/src/modules/module-protocol-pulse/manager.c
+++ b/src/modules/module-protocol-pulse/manager.c
@@ -33,8 +33,6 @@
 #include "log.h"
 #include "module-protocol-pulse/server.h"
 
-#define MAX_PARAMS 32
-
 #define manager_emit_sync(m) spa_hook_list_call(&(m)->hooks, struct pw_manager_events, sync, 0)
 #define manager_emit_added(m,o) spa_hook_list_call(&(m)->hooks, struct pw_manager_events, added, 0, o)
 #define manager_emit_updated(m,o) spa_hook_list_call(&(m)->hooks, struct pw_manager_events, updated, 0, o)
@@ -85,8 +83,6 @@ struct object {
 	struct spa_hook proxy_listener;
 	struct spa_hook object_listener;
 
-	int param_seq[MAX_PARAMS];
-
 	struct spa_list data_list;
 };
 
@@ -113,7 +109,7 @@ static uint32_t clear_params(struct spa_list *param_list, uint32_t id)
 }
 
 static struct pw_manager_param *add_param(struct spa_list *params,
-		int seq, int *param_seq, uint32_t id, const struct spa_pod *param)
+		int seq, uint32_t id, const struct spa_pod *param)
 {
 	struct pw_manager_param *p;
 
@@ -125,24 +121,12 @@ static struct pw_manager_param *add_param(struct spa_list *params,
 		id = SPA_POD_OBJECT_ID(param);
 	}
 
-	if (id >= MAX_PARAMS) {
-		pw_log_error("too big param id %d", id);
-		errno = EINVAL;
-		return NULL;
-	}
-
-	if (seq != param_seq[id]) {
-		pw_log_debug("ignoring param %d, seq:%d != current_seq:%d",
-				id, seq, param_seq[id]);
-		errno = EBUSY;
-		return NULL;
-	}
-
 	p = malloc(sizeof(*p) + (param != NULL ? SPA_POD_SIZE(param) : 0));
 	if (p == NULL)
 		return NULL;
 
 	p->id = id;
+	p->seq = seq;
 	if (param != NULL) {
 		p->param = SPA_PTROFF(p, sizeof(*p), struct spa_pod);
 		memcpy(p->param, param, SPA_POD_SIZE(param));
@@ -167,7 +151,6 @@ static bool has_param(struct spa_list *param_list, struct pw_manager_param *p)
 	return false;
 }
 
-
 static struct object *find_object_by_id(struct manager *m, uint32_t id)
 {
 	struct object *o;
@@ -180,7 +163,19 @@ static struct object *find_object_by_id(struct manager *m, uint32_t id)
 
 static void object_update_params(struct object *o)
 {
-	struct pw_manager_param *p;
+	struct pw_manager_param *p, *t;
+	uint32_t i;
+
+	for (i = 0; i < o->this.n_params; i++) {
+		spa_list_for_each_safe(p, t, &o->pending_list, link) {
+			if (p->id == o->this.params[i].id &&
+			    p->seq != o->this.params[i].seq &&
+			    p->param != NULL) {
+				spa_list_remove(&p->link);
+				free(p);
+			}
+		}
+	}
 
 	spa_list_consume(p, &o->pending_list, link) {
 		spa_list_remove(&p->link);
@@ -321,6 +316,9 @@ static void device_event_info(void *data, const struct pw_device_info *info)
 	if (info == NULL)
 		return;
 
+	o->this.n_params = info->n_params;
+	o->this.params = info->params;
+
 	if (info->change_mask & PW_DEVICE_CHANGE_MASK_PROPS)
 		changed++;
 
@@ -333,11 +331,6 @@ static void device_event_info(void *data, const struct pw_device_info *info)
 				continue;
 			info->params[i].user = 0;
 
-			if (id >= MAX_PARAMS) {
-				pw_log_error("too big param id %d", id);
-				continue;
-			}
-
 			switch (id) {
 			case SPA_PARAM_EnumProfile:
 			case SPA_PARAM_Profile:
@@ -347,14 +340,14 @@ static void device_event_info(void *data, const struct pw_device_info *info)
 			case SPA_PARAM_Route:
 				break;
 			}
-			add_param(&o->pending_list, o->param_seq[id], o->param_seq, id, NULL);
+			add_param(&o->pending_list, info->params[i].seq, id, NULL);
 			if (!(info->params[i].flags & SPA_PARAM_INFO_READ))
 				continue;
 
 			res = pw_device_enum_params((struct pw_device*)o->this.proxy,
-					++o->param_seq[id], id, 0, -1, NULL);
+					++info->params[i].seq, id, 0, -1, NULL);
 			if (SPA_RESULT_IS_ASYNC(res))
-				o->param_seq[id] = res;
+				info->params[i].seq = res;
 		}
 	}
 	if (changed) {
@@ -391,7 +384,7 @@ static void device_event_param(void *data, int seq,
 	struct manager *m = o->manager;
 	struct pw_manager_param *p;
 
-	p = add_param(&o->pending_list, seq, o->param_seq, id, param);
+	p = add_param(&o->pending_list, seq, id, param);
 	if (p == NULL)
 		return;
 
@@ -443,6 +436,9 @@ static void node_event_info(void *data, const struct pw_node_info *info)
 	if (info == NULL)
 		return;
 
+	o->this.n_params = info->n_params;
+	o->this.params = info->params;
+
 	if (info->change_mask & PW_NODE_CHANGE_MASK_STATE)
 		changed++;
 
@@ -458,20 +454,15 @@ static void node_event_info(void *data, const struct pw_node_info *info)
 				continue;
 			info->params[i].user = 0;
 
-			if (id >= MAX_PARAMS) {
-				pw_log_error("too big param id %d", id);
-				continue;
-			}
-
 			changed++;
-			add_param(&o->pending_list, o->param_seq[id], o->param_seq, id, NULL);
+			add_param(&o->pending_list, info->params[i].seq, id, NULL);
 			if (!(info->params[i].flags & SPA_PARAM_INFO_READ))
 				continue;
 
 			res = pw_node_enum_params((struct pw_node*)o->this.proxy,
-					++o->param_seq[id], id, 0, -1, NULL);
+					++info->params[i].seq, id, 0, -1, NULL);
 			if (SPA_RESULT_IS_ASYNC(res))
-				o->param_seq[id] = res;
+				info->params[i].seq = res;
 		}
 	}
 	if (changed) {
@@ -485,7 +476,7 @@ static void node_event_param(void *data, int seq,
 		const struct spa_pod *param)
 {
 	struct object *o = data;
-	add_param(&o->pending_list, seq, o->param_seq, id, param);
+	add_param(&o->pending_list, seq, id, param);
 }
 
 static const struct pw_node_events node_events = {
diff --git a/src/modules/module-protocol-pulse/manager.h b/src/modules/module-protocol-pulse/manager.h
index 05ce2e9c5..56aea25bb 100644
--- a/src/modules/module-protocol-pulse/manager.h
+++ b/src/modules/module-protocol-pulse/manager.h
@@ -72,6 +72,7 @@ struct pw_manager {
 
 struct pw_manager_param {
 	uint32_t id;
+	int32_t seq;
 	struct spa_list link;           /**< link in manager_object param_list */
 	struct spa_pod *param;
 };
@@ -92,6 +93,9 @@ struct pw_manager_object {
 
 	int changed;
 	void *info;
+	struct spa_param_info *params;
+	uint32_t n_params;
+
 	struct spa_list param_list;
 	unsigned int creating:1;
 	unsigned int removing:1;
diff --git a/src/tools/pw-dump.c b/src/tools/pw-dump.c
index 836216676..5b74fd8e9 100644
--- a/src/tools/pw-dump.c
+++ b/src/tools/pw-dump.c
@@ -88,6 +88,7 @@ struct data {
 
 struct param {
 	uint32_t id;
+	int32_t seq;
 	struct spa_list link;
 	struct spa_pod *param;
 };
@@ -116,6 +117,8 @@ struct object {
 
 	const struct class *class;
 	void *info;
+	struct spa_param_info *params;
+	uint32_t n_params;
 
 	int changed;
 	struct spa_list param_list;
@@ -148,7 +151,8 @@ static uint32_t clear_params(struct spa_list *param_list, uint32_t id)
 	return count;
 }
 
-static struct param *add_param(struct spa_list *params, uint32_t id, const struct spa_pod *param)
+static struct param *add_param(struct spa_list *params, int seq,
+		uint32_t id, const struct spa_pod *param)
 {
 	struct param *p;
 
@@ -165,6 +169,7 @@ static struct param *add_param(struct spa_list *params, uint32_t id, const struc
 		return NULL;
 
 	p->id = id;
+	p->seq = seq;
 	if (param != NULL) {
 		p->param = SPA_PTROFF(p, sizeof(*p), struct spa_pod);
 		memcpy(p->param, param, SPA_POD_SIZE(param));
@@ -189,7 +194,19 @@ static struct object *find_object(struct data *d, uint32_t id)
 
 static void object_update_params(struct object *o)
 {
-	struct param *p;
+	struct param *p, *t;
+	uint32_t i;
+
+	for (i = 0; i < o->n_params; i++) {
+		spa_list_for_each_safe(p, t, &o->pending_list, link) {
+			if (p->id == o->params[i].id &&
+			    p->seq != o->params[i].seq &&
+			    p->param != NULL) {
+				spa_list_remove(&p->link);
+				free(p);
+			}
+		}
+	}
 
 	spa_list_consume(p, &o->pending_list, link) {
 		spa_list_remove(&p->link);
@@ -771,6 +788,7 @@ static void device_event_info(void *data, const struct pw_device_info *info)
 {
 	struct object *o = data;
 	uint32_t i, changed = 0;
+	int res;
 
 	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
 
@@ -778,6 +796,9 @@ static void device_event_info(void *data, const struct pw_device_info *info)
 	if (info == NULL)
 		return;
 
+	o->params = info->params;
+	o->n_params = info->n_params;
+
 	if (info->change_mask & PW_DEVICE_CHANGE_MASK_PROPS)
 		changed++;
 
@@ -790,12 +811,14 @@ static void device_event_info(void *data, const struct pw_device_info *info)
 			info->params[i].user = 0;
 
 			changed++;
-			clear_params(&o->pending_list, id);
+			add_param(&o->pending_list, 0, id, NULL);
 			if (!(info->params[i].flags & SPA_PARAM_INFO_READ))
 				continue;
 
-			pw_device_enum_params((struct pw_device*)o->proxy,
-					0, id, 0, -1, NULL);
+			res = pw_device_enum_params((struct pw_device*)o->proxy,
+					++info->params[i].seq, id, 0, -1, NULL);
+			if (SPA_RESULT_IS_ASYNC(res))
+				info->params[i].seq = res;
 		}
 	}
 	if (changed) {
@@ -809,7 +832,7 @@ static void device_event_param(void *data, int seq,
 		const struct spa_pod *param)
 {
 	struct object *o = data;
-	add_param(&o->pending_list, id, param);
+	add_param(&o->pending_list, seq, id, param);
 }
 
 static const struct pw_device_events device_events = {
@@ -867,6 +890,7 @@ static void node_event_info(void *data, const struct pw_node_info *info)
 {
 	struct object *o = data;
 	uint32_t i, changed = 0;
+	int res;
 
 	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
 
@@ -874,6 +898,9 @@ static void node_event_info(void *data, const struct pw_node_info *info)
 	if (info == NULL)
 		return;
 
+	o->params = info->params;
+	o->n_params = info->n_params;
+
 	if (info->change_mask & PW_NODE_CHANGE_MASK_STATE)
 		changed++;
 
@@ -889,12 +916,14 @@ static void node_event_info(void *data, const struct pw_node_info *info)
 			info->params[i].user = 0;
 
 			changed++;
-			add_param(&o->pending_list, id, NULL);
+			add_param(&o->pending_list, 0, id, NULL);
 			if (!(info->params[i].flags & SPA_PARAM_INFO_READ))
 				continue;
 
-			pw_node_enum_params((struct pw_node*)o->proxy,
-					0, id, 0, -1, NULL);
+			res = pw_node_enum_params((struct pw_node*)o->proxy,
+					++info->params[i].seq, id, 0, -1, NULL);
+			if (SPA_RESULT_IS_ASYNC(res))
+				info->params[i].seq = res;
 		}
 	}
 	if (changed) {
@@ -908,7 +937,7 @@ static void node_event_param(void *data, int seq,
 		const struct spa_pod *param)
 {
 	struct object *o = data;
-	add_param(&o->pending_list, id, param);
+	add_param(&o->pending_list, seq, id, param);
 }
 
 static const struct pw_node_events node_events = {
@@ -958,6 +987,7 @@ static void port_event_info(void *data, const struct pw_port_info *info)
 {
 	struct object *o = data;
 	uint32_t i, changed = 0;
+	int res;
 
 	pw_log_debug("object %p: id:%d change-mask:%08"PRIx64, o, o->id, info->change_mask);
 
@@ -965,6 +995,9 @@ static void port_event_info(void *data, const struct pw_port_info *info)
 	if (info == NULL)
 		return;
 
+	o->params = info->params;
+	o->n_params = info->n_params;
+
 	if (info->change_mask & PW_PORT_CHANGE_MASK_PROPS)
 		changed++;
 
@@ -977,12 +1010,14 @@ static void port_event_info(void *data, const struct pw_port_info *info)
 			info->params[i].user = 0;
 
 			changed++;
-			add_param(&o->pending_list, id, NULL);
+			add_param(&o->pending_list, 0, id, NULL);
 			if (!(info->params[i].flags & SPA_PARAM_INFO_READ))
 				continue;
 
-			pw_port_enum_params((struct pw_port*)o->proxy,
-					0, id, 0, -1, NULL);
+			res = pw_port_enum_params((struct pw_port*)o->proxy,
+					++info->params[i].seq, id, 0, -1, NULL);
+			if (SPA_RESULT_IS_ASYNC(res))
+				info->params[i].seq = res;
 		}
 	}
 	if (changed) {
@@ -996,7 +1031,7 @@ static void port_event_param(void *data, int seq,
 		const struct spa_pod *param)
 {
 	struct object *o = data;
-	add_param(&o->pending_list, id, param);
+	add_param(&o->pending_list, seq, id, param);
 }
 
 static const struct pw_port_events port_events = {