title: No keyboard input in Qt Creator after update to Qt5
body: <p>I have this strange situation that after updating Qt from 4.8 to 5.3, Qt Creator (v.3.2.1) will not take any keyboard input. The keyboard is working normally in other applications. </p>
  
  <p>I'm on Debian Wheezy (7.7) with XFCE, but installed the Qt5 set of packages from wheezy-backports. 
  Does anyone have an idea what can be done about this?</p>
  
  <p><strong>Update:</strong>
  As requested, here's the Terminal output:</p>
  
  <pre><code>libEGL warning: DRI2: failed to authenticate
  xkbcommon:ERROR: failed to add default include path auto
  Qt: Failed to create XKB context!
  Use QT_XKB_CONFIG_ROOT environmental variable to provide an addtional search path, 
  add ':' as separator to provide several search paths and/or make sure that XKB 
  configurationdata directory contains recent enough contents, to update please see 
  http://cgit.freedesktop.org/xkeyboard-config/ .
  </code></pre>