On 2015-09-08 Adam Thompson wrote:
http://www.bluejeanscable.com/articles/how-long-can-hdmi-run.htm
OK, so I should be able to do high-rez's at the 10-12' I need. I'm optimistically going to believe my problem is I need a 1.3 or 1.4 version cable, and test that next (have to bug my friend to bring his monitor back). I'll report back!