There is only one type of buffer now

backends/x/event.go

@@ -33,10 +33,6 @@ func (backend *Backend) handleConfigureNotify (
 		configureEvent =
 			backend.compressConfigureNotify(configureEvent)
 
-		// we should not resize the canvas while drawing is taking place
-		backend.drawLock.Lock()
-		defer backend.drawLock.Unlock()
-
 		// resize buffer
 		width, height := backend.calculateBufferSize()
 		backend.application.SetSize(width, height)