I use Ubuntu 12.04 and using KDE for primary my DE alongside Unity. my problem is audio always detect HDMI for default. so when I'd turned down the volume on my laptop, it did not happen. while the standard setting for sound on my laptop is a Built-in Stereo Analogan not Audio Digital Audio Stereo (HDMI). how to change the order Built-in Analog Audio Stereo became standard on KDE.