Due to the lack of an appropriate forum section, I'll just post this here.
Toshiba HD-XE1, a Denon 3930, and a Playstation 3.
Cable1: Gefen fiber 10m DVI-DVI w/DVI-HDMI adapter on source end.
Cable2: Kramer fiber 20m HDMI-HDMI w/HDMI-DVI adpter at receiver end.
Toshiba: cable1 - no picture or snow, cable2 - picture
Denon: cable1 - picture, cable2 - blinking picture (on/off)
PS3: cable1 - picture, cable2 - picture
Tried different projectors, same result. Cable2 even has an extra 5V psu, so I find the results here very confusing. Any suggestions?