Sorry for the late reply.
If you have a spare SD Card, please try this image;
It is running the latest Raspbian, which means it runs on Pi 2.
I tested changing the console from cmdline.txt and it works.
I re-imaged with your Ver1.7 without any problems, the new X desktop looks good btw, and opened up the cmdline.txt file but found the 'fbcon=map:10 fbcon=rotate:2 fbcon=font:ProFont6x11' was not present. I haven't made any changes or edits to anything, but I thought that this line was needed to direct output to the PiScreen? I tried entering 'con2fbmap 1 0' into the terminal (from X desktop) but still can't move the console back to hdmi.
I also tried the v1.7 image on a brand new straight out of the box Pi2 with exactly the same result.
When you say that - "I tested changing the console from cmdline.txt and it works." - would you mind describing exactly what you did? Thanks Mark, Cheers.
My Karma just ran over your Dogma.