I've been trying to get my Parallella outputting via HDMI to my 2 monitors (both are TVs with HDMI inputs). Unfortunately these aren't super high resolution monitors. One is 720p and the other I'm not sure about. For both of these when I plug in the Parallella I get an "Out of Range" displayed on the screen, as a manufacturer warning.
Are others hitting this? I supposed I can ssh and change the resolution from there. But it would be good if future distributions boot to a lower resolution.