Hi, I just received my quad version and let me tell you it is very fast and I feel familiar with the linux environment. My question is related to, Analog Audio Output (the green jack) is not working, if I connect the Udoo through HDMI audio play wells on the TV but Audio Output (headphones, Aux to stereo, etc) never works. How do I switch from HDMI output to Analog(jack) audio output. In Raspberry pi I used to do as it: Code: amixer cset numid=3 1 I will really appreciate you help. Best Regards.