I'm enjoying FFXIV:ARR PC a lot, so much so that I'd like to play it on my bigger TV. Problem is, it's just not displaying my computer period.

This is strange because:
1 - It has worked in the past using the exact same hardware setup. AFAIK, drivers never changed either.
2 - I know the PC and cable work well, because I can connect it to an old projector and it'll display it fine.
3 - I know the TV's HDMI port works because it displays PS3 stuff just fine using the exact same port.
4 - I know it's a compatible resolution/hertz for the TV, as I'm using the same one that worked before (had it saved in an UltraMon profile).
5 - Since I can get the old projector to work with the cable, I know it's not a multi-display new driver issue or anything.

So the PC and cable are fine, the TV and TV's HDMI port is fine, but they suddenly refuse to work together when they worked just fine in the past.

What the heck could cause this? It's frustrating the hell out of me.

EDIT: I forgot to note that the computer with the non-displaying TV is acting just like it does with the working projector. It shows it, it says it's working fine, has no problems, etc. Lets me adjust all setting and the like. It just isn't actually displaying. The TV is not giving any alerts like "too high resolution", "improper frequency" or the like, it's just flat out blank, like there is no signal at all.

 

does you tv happen to be LG?

 

I asked because I have an LG and components started failing all of a sudden. it's only 3 years old. after the first year I couldn't connect my macbook pro through hdmi, I had to get a grb cable. then non of the hdmi inputs were outputting sound and just starting yesterday, I get no sound on the tv speakers from any source.

I was happy at first, but it turn out shitty in the end.

 

I forgot to note that the computer with the non-displaying TV is acting just like it does with the working projector. It shows it, it says it's working fine, has no problems, etc. Lets me adjust all setting and the like. It just isn't actually displaying. The TV is not giving any alerts like "too high resolution", "improper frequency" or the like, it's just flat out blank, like there is no signal at all.

 

Extended, Clone, Single Display, etc, all fail.
It's a black screen with "HDMI 1" at the top, meaning it's not detecting a signal at all.

 

No workie. Exact same problem.

 

Only thing I can think of after what you mentioned is aspect ratio if it's just black screening. Short of pressing one of the alt buttons I don't know.

 

Yeah I googled around myself, technology is tricky.