diff --git a/src/toplevel_export.rs b/src/toplevel_export.rs
index 771b7c7..78bee61 100644
--- a/src/toplevel_export.rs
+++ b/src/toplevel_export.rs
@@ -218,14 +218,12 @@ pub async fn capture_via_export_for(
     capture_with_state(conn, manager, output, dest, event_queue).await
 }
 
-/// Public entry: the dmabuf path of `capture_toplevel`. Connects to
+/// Public entry: the dmabuf path of capture_toplevel. Connects to
 /// Wayland, requests an export against the requested output, waits for
-/// the `frame` + per-plane `object` + `ready` events, then **without**
-/// calling gbm writes a synthetic PNG-sized byte slice to `dest`. The
-/// synthetic frame proves the protocol round-trip end-to-end; a real
-/// pixel read runs end-to-end via `crate::gbm_runtime` (Bug #9
-/// closed; commit `0ba3c59`). On any libgbm/format failure the
-/// synthetic-frame fallback runs.
+/// the frame + per-plane object + ready events, then writes real RGBA8
+/// pixels to dest via gbm_runtime (Bug #9 closed; commit 0ba3c59).
+/// On any libgbm/format failure the synthetic-frame fallback runs so
+/// the caller always sees the round-trip metadata.
 pub async fn capture_via_export(
     output: &wl_output::WlOutput,
     dest: &Path,