mplayer [ao_alsa] unable to find simple control pcm , 0问题解决 Posted on 2010-02-04 In 技术笔记 mplayer问题 [ao_alsa] unable to find simple control pcm , 0 播放器－>右键->Preferences->Audio->Normalize Sound、 Enable equalizer、Enable Software Mixer三项打上勾选中. 或 把MPlayer打开，点击MPlayer的设置选项，然后选择"Audio"修改为"pulse PulseAudio audio output"