Sony bravia klv-32t400a hdmi input through x-box and p.c gives error reading - unsupported signal! check device output. both are on 1080p using hdmi to hdmi cable v1.3 why no vidio, only audio

Connecting your old RDR-HXD890 player/recorder to your Sky Q box and TV can be done by using the appropriate cables and connections. Here is an example of how you can connect the devices:

1. Connect the HDMI output of the Sky Q box to the HDMI input of the RDR-HXD890 using an HDMI cable. This will send the video and audio signals from the Sky Q box to the RDR-HXD890.
2. Connect the HDMI output of the RDR-HXD890 to the HDMI input of the TV using an HDMI cable. This will send the video and audio signals from the RDR-HXD890 to the TV.
3. Connect the aerial cable to the aerial input of the RDR-HXD890
4. Connect the RDR-HXD890 to the power outlet
5. Turn on all the devices and set the TV to the HDMI input where the RDR-HXD890 is connected.

By connecting your devices in this manner, you will be able to watch and record TV shows and movies from your Sky Q box through the RDR-HXD890 and display them on your TV.

As the HDMI input of TVs are only meant to accept video signals (to set HDMI specifications), any SMART TV dongle that attaches to the HDMI port is going to output a video signal compatible with the set HDMI specification. A modern TV like yours will be able to accept the digital video signal from any dongle, as it accepts all the common modern formats (1080p, 1080i, 720p, 576p, 576i, 480p, 480i)

Ref
https://www.engadget.com/products/sony/bravia/klv-32nx500/specs

How do I get 1080 instead of 720. - Comcast Help and Support Forums

forums.xfinity.com/t5/XfinityTV-and.../How...1080...720/.../1152741

Jan 3, 2012 - I can switch one of them from one HDMI input to the other HDMI ... The YPbPr option might be set at 720p, and you can change that to 1080i.

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Is ur tv a CRT tube type of a analouge tv u are asking?Yes than the tv don't have HDMI inputs hubs for HDMI cables connections.Only some projection tvs,all plasma,LCD and LED tvs have HDMI inputs hubs only and able give ur tv incomming signals HD 1080i for a broadcasting and HD pictures or throught a HD boxes or games devices like Xbox or Playstation 3 devices to get HD output picture for like 1080p.

YOU MIGHT HAVE A GOOD CHANCE BY CALLING 1-800-222-7669 IF TED IS STILL EMPLOYED THERE, HE'LL BE ABLE TO GET YOU ON TRACK, GOOD LUCK BOB G.

double check your HDMI cable and connectors and make sure that they are properly connected. try to replace your AV & HDMI cables

There is problem with Not matching input first you have to check which input you have problem like HDMI or PC in put.When resolution does not match this error show. Resolution must be match.I hope you under stand where is the problem.

All hd-ready tv's only support max 1080i and not 1080p. The default setting on the Xbox is 1080p, that's why you get that message. There is a way to fix this, just follow the steps below:

Connect TV and X box via HDMI cable with units switched off.

Switch both units on.

1. Press the right arrow 7 times (Left top jog knob on game controller)
   

2. Press "A" button 4 times (Green button)
   

3. Press "up" arrow once to set to 1080i
   

4. Press "up" arrow once again to set to 720p.
   

5. Press "A" to store setting
   

Try all of your HDMI inputs, one may be rated at the correct voltage to be able to display the video. The offical part that Panasonic was giving for this was PDPHDMIKIT, its basically a HDMI extender that regulates the voltage. The part is still available online, try partstore.com or andrews-electronics.

I agree with your solution and you are correct in that you lose very little quality by using component instead of HDMI. there are A/V receivers that transcode HDMI inputs to component; as far as I know that's the only other option