1. Open an emacs window in the GNOME shell. 2. Iconify it by hitting ctrl-z. 3. Un-iconify it by clicking on the icon in your dock. 4. Type something in the window. 5. Note how what you type is not reflected. 6. Resize the window. 7. Note how what you typed suddenly appears.
*** This bug has been marked as a duplicate of bug 711739 ***