2 Slims, 1 Vizio: one works for me, one NOT SUPPORT (+ more details) = STUMPED!

I bought a used chrome-trimmed shiny black 250gb 360S (without 4gb internal memory) to give as a gift to a bummed out friend, and I have spent the last two days troubleshooting what seems to be a compatibility issue with an HDMI cable connection to a 37"
Vizio 1080p LED TV (M370NV). It simply states "NOT SUPPORT" with the older one and the newer one works. It DOES work with this specific HDTV if I use a Composite RGB/AV, just not with an HDMI cable. It also works perfectly with that same HDMI cable on a different
Vizio HDTV. Also, my newer matte black XBOX 360S (with 4gb internal memory) works on both HDTVs with that same HDMI cable. So, clearly there's something fishy going on with the older 360S with HDMI cable to this specific Vizio. Troubleshooting: Y+RT doesn't
do anything Going into Display Settings blind (up, right 6, down, AAAA, etc...) didn't work Switching HDMI cord ends didn't work Using a different HDMI cable didn't work Factory resetting the TV didn't work Why would my newer matte black XBOX 360S work fine
with an HDMI cable to this Vizio HDTV, but not the chrome-trimmed shiny black 360S?

:)

 

Vizio soundbar

Could you post some more details. Model of the Vizio TV and sound bar. Also what settings you're using under your audio output. Bitstream Dolby or uncompressed stereo for both HDMI and Optical need some more details.

 

Sudden HDMI Issue with XBOX 360

Hello,

I've had an XBOX 360 slim for almost 2 years. I've had it plugged into my Samsung Stereo Receiver (via HDMI) with no problems until last week. One day it worked fine, then the next day my TV said "No Signal"...

I started swapping out HDMI cables, but that didn't work.

Finally, I decided to try it plugged straight into the HDMI ports of my TV (a Vizio 55 inch). It appears to work fine through this TV, plugged straight into either HDMI port 1 or port 2.

I tried it on an additional Vizio 47 inch TV that I have. This TV has four HDMI ports. The XBOX 360 works through HDMI ports 1 an 2...but, ports 3 and 4 say "Not Supported".

I tried it on one more TV---a 32 inch Toshiba, and the XBOX 360 does not work at all in any of the Toshiba's HDMI ports.

So... through my stereo receiver, HDMI ports 3 and 4 of the Vizio and through the Toshiba...the XBOX 360 no longer works via HDMI.

I tried:

- Resetting the Display Settings numerous times

- I cleared the Cache

- I rolled my system back (sort of) so that I could reinstall the February update

- I disabled the Display detection option and then re-enabled it



Nothing has worked so far. I'd really like to continue using it through my Samsung Receiver as opposed to plugging it straight into the TV.

 

Same thing is happening to me. I brought my older 360 to the girlfriends house playing walking dead (awesome game BTW) works fine on her new Samsung TV tried to hook it back to my vizio and I'm getting the same error NOT SUPPORT. I though it was broken.
I used the component wire works fiunbe