2 files changed, 9 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index b7ecf6b7297..fd32d739bc0 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2010-01-08  Jan Djärv  <jan.h.d@swipnet.se>
+
+        * dispnew.c (change_frame_size_1): newwidth == FRAME_COLS  (f) must
+        also be true before we can return early (bug #5339).
+
 2010-01-06  David Reitter  <david.reitter@gmail.com>
 
         * nsfns.m (ns_get_screen): Rewrite, returning NULL for non-NS.
diff --git a/src/dispnew.c b/src/dispnew.c
index 0039ec0d181..3ed5469c063 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -6340,8 +6340,11 @@ change_frame_size_1 (f, newheight, newwidth, pretend, delay, safe)
   check_frame_size (f, &newheight, &newwidth);
 
   /* If we're not changing the frame size, quit now.  */
+  /* Frame width may be unchanged but the text portion may change, for example,
+     fullscreen and remove/add scroll bar.  */
   if (newheight == FRAME_LINES (f)
-      && new_frame_total_cols == FRAME_TOTAL_COLS (f))
+      && newwidth == FRAME_COLS  (f) // text portion unchanged
+      && new_frame_total_cols == FRAME_TOTAL_COLS (f)) // frame width unchanged
     return;
 
   BLOCK_INPUT;