Regular Visitor
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2 Messages
XG1V4 box HDMI handshake problem
I have seen several messages/questions in this forum about problems with the XG1V4 box losing its HDMI connection with the TV. But in none of those threads does there appear to be a resolution, so I am going to try to bring up the question/problem again.
My setup:
XG1V4 connected via UHD high-speed HDMI cable to Samsung UN65JU6500 TV.
Problem:
The TV and XG1V4 work fine together for the whole day. Then, the next morning, when I turn the TV on I get a black screen. I can resolve the problem by rebooting the XG1V4 (obviously not an acceptable way of dealing with the problem). Occassionally, without needing to reboot, I can get the box and the TV to communicate correctly by first connecting the XG1V4 to a much older non-UHD Samsung TV, getting that TV to show correctly, and then connecting the XG1V4 to the UN65JU6500. But that doesn't always work. In any event, even when I do get it to work correctly, it quits working again the next morning. Rinse and repeat.
Elsewhere on these forums there have been a couple of suggested fixes. First, turn off PowerSave. I have done that. Second, make sure you have a UHD high-speed cable. I have done that. Third, make sure that you have the latest firmware on the TV and on the XG1V4 box. I have done that.
From reading the various threads on this issue, it appears that it is an HDCP 2.2 issue that is causing the XG1V4 and the TV to have a problem establishing an HDMI handshake. And several Comcast employees suggested that the problem has been sent back to the tech folks to find a solution. But unless I have missed it, I don't see any notice of a resolution.....
XfinityKenF
Official Employee
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8K Messages
5 years ago
Gotcha. Do you have a UHD TV? If so, have you tried disabling that feature and retesting?
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Rustyben
Expert
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24.6K Messages
5 years ago
no updates since the rollback in firmware to the 3/22 3.3p14s1 the menu xre is 100.1.0 but that doesn't affect the hardware like HDMI. I'm still having the problem, too.
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rlee131
Contributor
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61 Messages
5 years ago
Nothing. Not too optimistic. I’ve been dealing with since November. Great lip service from Comcast but no resolution. Been waiting for a return call from a Senior Advanced repair person, Mark, who assured me he would call after he discussed with engineers that was one month ago
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Rozr1
New Poster
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3 Messages
5 years ago
Ridiculous
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BrianHCM1
Contributor
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28 Messages
5 years ago
IMO, it will not be solved until Comcast has acutaul 4K programing. I just use the smart TV netfilx. Hands down better than comcast in terms of picture quality.
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Rustyben
Expert
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24.6K Messages
5 years ago
there are two versions that 'change', one is the one you referenced the XRE (menu system). the other is the firmware and appears on the about screen after "STB Version". The problem may be a firmware but can't be a menu issue. the problem may also be a hardware (the box design components) issue. it is unknown at this time. I change input on the TV to chromecast/DVD/roku then back to the DVR and the connection wakes up.
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chrisinfla
Contributor
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27 Messages
5 years ago
I think I may be a new victim with this issue. Started losing video and sound for a 5-10 seconds a week ago, replaced all the HDMI cables with new high speed. Not fixed. Setup is XG1V4 to an old Marantz receiver and then to Panny F8500 (not 4K). Thought OK, guess the Marantz HDMI ports are going, wanted to upgrade anyway and picked up a new Denon 2500 A/V.
Now I am losing video every 15mins or so for a few seconds. Always re-connects but makes tv unwatchable. Strangely seems much worse when using Netflix or Amazon from the XG box.
Do these sound like the same handshake issues everyone is reporting? Seems the one difference is it always reconnect by itself.
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rlee131
Contributor
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61 Messages
5 years ago
Sounds much different than the HANDSHAKE issue I have been dealing with since November 2018 Also sounds much different than the Handshake issues I have been reading about in this forum
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Timbo3
Regular Visitor
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5 Messages
5 years ago
I thought I conquered the handshake issue Changed hdmi port tv reconnected and Xfinty icon appeared. Had Comcast icon worked for four days! Some up and turned on tv and guess what black screen. Unplugged cable box and picture/sound back. I said f--k it reconnected thru Yamaha A\V. I AM IN PROCESS OF CANNECTING HARMONY HUB/COMPANION RUNNING IT CABLE TO MEDIA CENTER. I will report back to let everyone know if it was successful. Timbo
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chrisinfla
Contributor
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27 Messages
5 years ago
Over the last hours or 2 I've noticed that the issue stabilizes after an HDMI reconnect but always starts to come back after about 20 mins and get progressively worse.
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Rozr1
New Poster
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3 Messages
5 years ago
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Timbo3
Regular Visitor
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5 Messages
5 years ago
Hello everyone,
I am happy to report that I was successful in bypassing the Comcast handshake issue. I went out and bought a Harmony Hub. I took the Comcast box out of the loop! From what I have read from all the articles most people are using an a/v unit, replugged all devices back through my Yamaha A/V and that will do all the switching. Amazon has a great deal on hug and remote. Huh works well, only thing is you lose voice function.
Logitech does have a voice remote but pricey. I am happy with my set up. I had a old Touch remote from Logitech everything turns on and switches to the right inputs. Good luck everyone!!
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modonn10
Regular Visitor
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3 Messages
5 years ago
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Cbutterw430
New Poster
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1 Message
5 years ago
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rlee131
Contributor
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61 Messages
5 years ago
Only turning offf the UHD to the HDMI port the x1 box is connected too. When this is done handshake issue goes away Then turning it back on after tv and system starts. Had issues since Nov 2018. Comcast totally useless in fixing issue even the Comcast people on this forum like Comcast Ken and Rafael. Who contacted me several times then disappeared aA Comcast Advanced support person (Mark) call me. He was going to contact the Comcast engineers then call me back. This was over 5 weeks ago. No Call yet. Says a lot about Comcast support. POOR CUSTOMER SERVICE NO interest in fixing a long going nation wide issue
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