Virtual keyborad may get small d.info['displayHeight']

def display(self):
        """Virtual keyborad may get small d.info['displayHeight']
        """
        for line in self.adb_shell('dumpsys display').splitlines():
            m = _DISPLAY_RE.search(line, 0)
            if not m:
                continue
            w = int(m.group('width'))
            h = int(m.group('height'))
            return collections.namedtuple('Display', ['width', 'height'])(w, h)
        else:
            w, h = self.info['displayWidth'], self.info['displayHeight']
            return collections.namedtuple('Display', ['width', 'height'])(w, h)