Sat May 11, 2013 12:44 am
Laptops usually do not output an HDCP protected video signal unless instructed to by playback software (like a PowerDVD, Windows Media player, or Netflix, etc.). That usually means the problem is your computer is not outputing at a compatible resolution/colorspace. The HDMI to SDI mini converter only accepts "video" resolutions and not "computer" resolutions, and while some graphics cards are able to output a "video" resolution some are not. Specifically, you need to output 1280x720 59hz YUV color, or 1920x1080 59hz interlaced YUV color.
For other non-computer devices like your PS3 that encrypt their signal using HDCP to prevent copying, as you suspected they will not work. HDCP compatibiliy requires purchasing a decryption key from the organization that created the HDMI standard, and they expressly refuse to issue any keys to manufacturers that alter the signal in any way (such as changing the signal from HDMI to any other format like SDI).