Remove an apparently unnecessary XClearWindow call.

* src/xterm.c (x_clear_frame): Remove XClearWindow call.  This appears
not to be necessary, and produces flickering.

2 files changed, 12 insertions, 3 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 6fa2d821565..f489a233683 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2011-03-22  Chong Yidong  <cyd@stupidchicken.com>
+
+        * xterm.c (x_clear_frame): Remove XClearWindow call.  This appears
+        not to be necessary, and produces flickering.
+
 2011-03-20  Glenn Morris  <rgm@gnu.org>
 
         * config.in: Remove file.
diff --git a/src/xterm.c b/src/xterm.c
index fd7ffd68e62..f87c22912a4 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -2928,10 +2928,14 @@ x_clear_frame (struct frame *f)
   /* We don't set the output cursor here because there will always
      follow an explicit cursor_to.  */
   BLOCK_INPUT;
-  XClearWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
 
-  /* We have to clear the scroll bars, too.  If we have changed
-     colors or something like that, then they should be notified.  */
+  /* The following calls have been commented out because they do not
+     seem to accomplish anything, apart from causing flickering during
+     window resize.  */
+  /* XClearWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)); */
+
+  /* We have to clear the scroll bars.  If we have changed colors or
+     something like that, then they should be notified.  */
   x_scroll_bar_clear (f);
 
 #if defined (USE_GTK) && defined (USE_TOOLKIT_SCROLL_BARS)