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PC to TV via HDMI - "No Signal"

So - I'm having some problems with connecting my pc to my tv via HDMI, and I'm about at the end of my rope.

The full story - It's a new built computer and for the last 4 days, it was working just fine connected to the tv (outputting at 1280x720), then last night I moved the same internals to a new case. NOTHING ELSE ASIDE FROM THE CASE HAS CHANGED. The HDMI cord is plugged into the same HDMI port on the back of the same motherboard, and into the same HDMI port on the TV, and I'm getting no signal on the TV. I've been working on this for hours and I'm at a total loss.

I'll also add that I am able to plug the computer into a monitor via HDMI with no problem.

Any help you can provide is very much appreciated.
2 answers Last reply Best Answer
More about hdmi signal
  1. Try plugging it into the TV with the HDMI and then into the other monitor via VGA or DVI which ever it has. Then when it starts up go to the Display Settings and make sure its reading the TV right
  2. Best answer
    I had bad luck with hdmi to hdmi and tried 3 cables but I then got dvi [card to hdmi [hdtv] and it fired right up and worked with out issue on all my TV's [go figure ]

    example
    http://www.newegg.com/Product/Product.aspx?Item=N82E16812105826&cm_re=hdmi_to_dvi-_-12-105-826-_-Product
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