Overall I am quite happy with the improvements. Unfortunately changing resolutions is a pain in the ass if you need a specific one, not available in the config tool, like 640x480. More options would be very welcome, including selectable refresh rates! Am I not aware of an easy option? I use a serial connection at the uboot stage to change it. Audio over HDMI is not working at all, please help me here. I tried the pulse audio volume control program, no luck here. I can switch to HP output but HDMI is not working. I tried alsamixer, selected "imx-hdmi-soc" on the "select soundcard" option, no luck. I tried a fresh image, no luck. And of course I checked if HDMI audio is working in general with this cable/monitor setup. It is working! Is there a HDMI and DVI mode, like on the raspberry pi? There it is possible to select: hdmi_drive=1(DVI mode, no audio) or hdmi_drive=2(HDMI with audio). I have no clue where I would be able to find these settings on the udoo. Is there anyone with working audio over HDMI? I have a quad with UDOObuntu_quad_v1.0, Release Date: 2014-07-04, Release Version: v1.0 I would be very thankful for any suggestions!