diff --git a/src/screencast/pipewire_screencast.c b/src/screencast/pipewire_screencast.c
index 1149d97..2a0eb75 100644
--- a/src/screencast/pipewire_screencast.c
+++ b/src/screencast/pipewire_screencast.c
@@ -182,6 +182,13 @@ static void pwr_handle_stream_param_changed(void *data, uint32_t id,
 		data_type = 1<<SPA_DATA_MemFd;
 	}
 
+	logprint(DEBUG, "pipewire: Format negotiated:");
+	logprint(DEBUG, "pipewire: buffer_type: %u (%u)", cast->buffer_type, data_type);
+	logprint(DEBUG, "pipewire: format: %u", cast->pwr_format.format);
+	logprint(DEBUG, "pipewire: modifier: %lu", cast->pwr_format.modifier);
+	logprint(DEBUG, "pipewire: size: (%u, %u)", cast->pwr_format.size.width, cast->pwr_format.size.height);
+	logprint(DEBUG, "pipewire: max_framerate: (%u / %u)", cast->pwr_format.max_framerate.num, cast->pwr_format.max_framerate.denom);
+
 	params[0] = build_buffer(&b, blocks, cast->screencopy_frame_info[cast->buffer_type].size,
 			cast->screencopy_frame_info[cast->buffer_type].stride, data_type);
 
@@ -197,7 +204,7 @@ static void pwr_handle_stream_add_buffer(void *data, struct pw_buffer *buffer) {
 	struct xdpw_screencast_instance *cast = data;
 	struct spa_data *d;
 
-	logprint(TRACE, "pipewire: add buffer event handle");
+	logprint(DEBUG, "pipewire: add buffer event handle");
 
 	d = buffer->buffer->datas;
 
@@ -244,7 +251,7 @@ static void pwr_handle_stream_add_buffer(void *data, struct pw_buffer *buffer) {
 static void pwr_handle_stream_remove_buffer(void *data, struct pw_buffer *buffer) {
 	struct xdpw_screencast_instance *cast = data;
 
-	logprint(TRACE, "pipewire: remove buffer event handle");
+	logprint(DEBUG, "pipewire: remove buffer event handle");
 
 	struct xdpw_buffer *xdpw_buffer = buffer->user_data;
 	if (xdpw_buffer) {
@@ -313,8 +320,11 @@ void xdpw_pwr_enqueue_buffer(struct xdpw_screencast_instance *cast) {
 
 	logprint(TRACE, "********************");
 	logprint(TRACE, "pipewire: fd %u", d[0].fd);
-	logprint(TRACE, "pipewire: size %d", d[0].maxsize);
+	logprint(TRACE, "pipewire: maxsize %d", d[0].maxsize);
+	logprint(TRACE, "pipewire: size %d", d[0].chunk->size);
 	logprint(TRACE, "pipewire: stride %d", d[0].chunk->stride);
+	logprint(TRACE, "pipewire: offset %d", d[0].chunk->offset);
+	logprint(TRACE, "pipewire: chunk flags %d", d[0].chunk->flags);
 	logprint(TRACE, "pipewire: width %d", cast->current_frame.xdpw_buffer->width);
 	logprint(TRACE, "pipewire: height %d", cast->current_frame.xdpw_buffer->height);
 	logprint(TRACE, "pipewire: y_invert %d", cast->current_frame.y_invert);