Xlib:  extension "XFree86-DRI" missing on display ":1.0".
ALSA lib pcm_dmix.c:864:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm_dmix.c:864:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm_dmix.c:864:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm_dmix.c:864:(snd_pcm_dmix_open) unable to open slave
Traceback (most recent call last):
  File "./FretsOnFire.py", line 64, in <module>
    engine = GameEngine(config)
  File "/usr/share/games/fretsonfire/game/GameEngine.py", line 149, in __init__
    self.audio.open(frequency = frequency, bits = bits, stereo = stereo, bufferSize = bufferSize)
  File "/usr/share/games/fretsonfire/game/Audio.py", line 49, in open
    pygame.mixer.init()
pygame.error: No available audio device