No HDMI on beaglebone black.


I just installed the latest version of volumio.
While it works absolutely great with an USB DAC, I do not get any sound (or video signal!) over HDMI.
Is there something I have to do before this works?

Kind regards,

I setup volumio today and had some HDMI issues. After changing my output to HDIM I had to reboot for the change to take effect. Once I got sound over HDMI, the sound stop after about 5 minutes. I rebooted, started some music and again 5 about minutes later the music stop. I think the HDMI connection is timing out.