I have a Sony Grand Wega KDF-55WF655 and the HDI does not seem to be working. Never tried it before so it prob was never working.
Tried cable box, laptop, etc.nothing works. The screen blinks so it does recognize it, but not picture. Thanks.
(rant redacted by author)
In general, check that you have a good HDMI cable by trying a different one. Check that your sources are set to send something out by HDMI. Many devices require a menu selection for HDMI. Also some devices won't work if anything is hooked up to the component video output.
Make sure you have plugged the cable in correctly.
If you need more help, be specific about what you have tried and what your setup is (component makes / model numbers, where you got the HDMI cable and what type of HDMI cable).
BTW, if your asking for free help at least take the time to spell HDMI correctly and not HDI or HMDI.