HDMI Handshake July 2020

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@drew3696 wrote:

Is there a known resolution for the HDMI Handshake issue?

I am a newer customer just signed up last month and so far I am very unhappy.

However, I will stay on topic as I hope any comments will also be relative. I am creating a new post to try to get an answer not a bunch of repetative rants.

 

My Vizio television is not seeing the signal, I tried a newer Vizio TV and it's not working either. Meaning the signal from the device or the "Handshake".

 

How can possibly run any updates when I cannot see the screen. The service tech on the phone said she tried but nothing happened. 

 

This is not a customer service issue this is a technology issue that should be addressed immediatley I cannot believe an issue would be so rampant and so low level.

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I have two vizio TVs with set top boxes (2 others with roku devices). turn off power save, set screen saver to 7 hours (no off setting so far). if it happens again (should be very rare) use the Vizio remote to change HDMI inputs to something else then back to the DVR. Some TVs don't respond well to HDMI inputs that just disappear. I also changed my reboot time for the set top box to the latest setting so no way it can time out on screen saver before I'm up and the TV is back on. 

I myself have been dealing with this comcast handshake issue for over 2 months now. Every morning, if I want to watch the news or anything else on TV, I turn the TV on, wait for the screen to give me the " no signal on HDMI 3" thing, I then unplug the X-1 box, wait about a minute, I then plug it back in. I then get a picture and sound. This has become my daily routine.  When I call Comcast, the computer will tell me that it's resetting the X-1 box. The X-1 box then works fine until the next time I  turn it off.  I then have to restart it all over again. I call again, they can't help me. I have given up on this issue already. I'm on my 4th X-1 cable box from X-finity now. They all do the same. I have bought several HDMI cables. They all do the same. I even bought an expensive HDMI fiber optic cable, nothing, still getting the "No signal on HDMI 3". I have tried all of the suggested settings I read about on Community forums (Power on-off-sleep), different video resolutions on the TV, etc.  Tried HDMI switches. None of that has worked for me. Comcast please HELP!! Am I condemmed to having to plug/unplug my TV box for the rest of my life? This is so incredibly frustating!

I have the same issue.  Each time I turn on the system, I need to detach the HDMI from the X1 box and then plug it back in.

Based on everyone's comments, I guess it's not worth getting a new HDMI cable, since it doesn't sound as though that will fix it.

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@jerrit02 wrote:

I myself have been dealing with this comcast handshake issue for over 2 months now. Every morning, if I want to watch the news or anything else on TV, I turn the TV on, wait for the screen to give me the " no signal on HDMI 3" thing, I then unplug the X-1 box, wait about a minute, I then plug it back in. I then get a picture and sound. This has become my daily routine.  When I call Comcast, the computer will tell me that it's resetting the X-1 box. The X-1 box then works fine until the next time I  turn it off.  I then have to restart it all over again. I call again, they can't help me. I have given up on this issue already. I'm on my 4th X-1 cable box from X-finity now. They all do the same. I have bought several HDMI cables. They all do the same. I even bought an expensive HDMI fiber optic cable, nothing, still getting the "No signal on HDMI 3". I have tried all of the suggested settings I read about on Community forums (Power on-off-sleep), different video resolutions on the TV, etc.  Tried HDMI switches. None of that has worked for me. Comcast please HELP!! Am I condemmed to having to plug/unplug my TV box for the rest of my life? This is so incredibly frustating!

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is your TV a vizio? is your power save set to off on the set top box? Most TVs specify that a cable set top box should be connected to HDMI 1 or HDMI2. if you have a 4k set top box you will have to verify that the HDMI port you select is designated as a 4k HDMI port. It is not recommended to connect a set top box to an HDMI port that is also marked/used as ARC.

No. My TV is a Samsung Q90RAFXZA 65".

It is a 4K TV, connected via HDMI ARC on the TV side and HDMI ARC on the receiver side as well.

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@jerrit02 wrote:

It is a 4K TV, connected via HDMI ARC on the TV side and HDMI ARC on the receiver side as well.

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is your set top box connected directly to your TV or to a receiver/sound bar? do you have a receiver/sound bar?

On the X1 device settings for video, there is option for CEC on or off. This is what allows one HDMI device to control another. Have you tried reversing it? If it's ON, try OFF. If it's OFF, try ON.

Also, I assume you have tried hitting any key to make sure the box is fully 'awake'? I often hit EXIT as I find I get a picture faster.

Also, try setting the screen saver to 5 hours and disabling power saving.

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@andyross wrote:

On the X1 device settings for video, there is option for CEC on or off. This is what allows one HDMI device to control another. Have you tried reversing it? If it's ON, try OFF. If it's OFF, try ON.

Also, I assume you have tried hitting any key to make sure the box is fully 'awake'? I often hit EXIT as I find I get a picture faster.

Also, try setting the screen saver to 5 hours and disabling power saving.

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CEC options were removed many months ago from X1 menu. 

It's on the power saver screen.

My X-1 Box does not give me that option on Video Display.  The only options I see are Video resolution and Zoom on-off.

It is goes from the X-1 Box to the receiver and from the receiver to the TV. All connected via HDMI ARC. Both TV and receiver have HDMI ARC connections. I also tried a direct connection between the TV and the X-1 Box, bypassing the receiver. It did not work either. I think it has to be some issues in the hardware or firmware. Have replaced the X-1 box 4 times already. From what I have researched out there, it seems to happen with all brands of TV (all 4K).

Don't see the CEC option on any of the settings on my X-1.

Which box do you have? On my XG1v4, they are in the power savings section.