Sorry for the late reply, a friend and I were messing with Arch Linux on the UDOO and we had this same issue. It was due to us mainlining our...
I can tell you that the UDOO will not boot on 250mA @ 12volts. It browns out by the looks of it (Green power LED flickers). However it runs fine...
Did you build OpenCV on your PC or on the UDOO? I'm currently attempting to do it on the device.
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