window: fix fullscreen when auto is used. closes #831 #830.

kivy/core/window/window_pygame.py

@@ -16,7 +16,6 @@ from kivy import kivy_home_dir
 from kivy.base import ExceptionManager
 from kivy.logger import Logger
 from kivy.base import stopTouchApp, EventLoop
-from kivy.clock import Clock
 from kivy.utils import platform
 
 try:
@@ -85,7 +84,7 @@ class WindowPygame(WindowBase):
                 self._pos = (0, 0)
             environ['SDL_VIDEO_WINDOW_POS'] = '%d,%d' % self._pos
 
-        elif self.fullscreen is True:
+        elif self.fullscreen in ('auto', True):
             Logger.debug('WinPygame: Set window to fullscreen mode')
             self.flags |= pygame.FULLSCREEN