patch 7.4.2025
Problem:    The cursor blinking stops or is irregular when receiving date over
            a channel and writing it in a buffer, and when updating the status
            line. (Ramel Eshed)
Solution:   Make it a bit better by flushing GUI output.  Don't redraw the
            cursor after updating the screen if the blink state is off.
diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index 39b918a..9437ed3 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -867,7 +867,10 @@
 	blink_timer = 0;
     }
     if (blink_state == BLINK_OFF)
+    {
 	gui_update_cursor(TRUE, FALSE);
+	gui_mch_flush();
+    }
     blink_state = BLINK_NONE;
 }
 
@@ -902,6 +905,7 @@
 				   (GtkFunction) blink_cb, NULL);
 #endif
     }
+    gui_mch_flush();
 
     return FALSE;		/* don't happen again */
 }
@@ -934,6 +938,7 @@
 #endif
 	blink_state = BLINK_ON;
 	gui_update_cursor(TRUE, FALSE);
+	gui_mch_flush();
     }
 }