XG1v4 4k DVR no signal to TV blue screen

[Stevencs1043]

Just turn it to 4K when watching and change it to 1080 when done. I’m suRe they will figure out the issues eventually

[CAMAM]

I continue to have this same problem.  It happens every day when I turn the television on.  This is not even due to changing back and forth to different  components.  I think it just has communication issues when it turns back on.  This is getting very old when you pay as much as we do per month for cable television.  

[Bretyboy]

Yup that's why I put 4K in quotes cuz it's basically still just fantasy that's been hanging in front of us like a carrot on a stick right? Lol thanks!

[Stevencs1043]

On your remote, hit enter enter 1080. This will change the input to 1080i and then it usually turns right on for me. You just have to change it back.

[Rustyben]

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@Stevencs1043 wrote:
On your remote, hit enter enter 1080. This will change the input to 1080i and then it usually turns right on for me. You just have to change it back.

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that will stop the 4k output. just go into settings, power and turn off powersave. on the TV turn off CEC or the brand's same function to stop the TV from telling the X1 set top box to turn off (in this case go into powersave).

[Juskray47]

Yep....I’m on my 3rd XG1.  Had a tech out again last week.   Changed DVR unit, remote, and HDMI cable...again.   No surprise, same issues as when I changed to Xfinity.

[Rustyben]

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@Juskray47 wrote:

Yep....I’m on my 3rd XG1.  Had a tech out again last week.   Changed DVR unit, remote, and HDMI cable...again.   No surprise, same issues as when I changed to Xfinity.

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next time that happens try pressing channel up on the Xfinity remote control. does the DVR come out of power save after a few seconds? be sure your TV's settings for CEC or automated power setting that is turning off the DVR (via signals on the HDMI cable).

[Davesirus]

Same problem, same things done to correct, still have same problem, Sony or Comcast, don't care, will not use or purchase either products, recommend you do the same, maybe the will get off their assets and fix problem ,don't count on it...

[waddabilly]

I am experiencing this exact issue with XG1v4 and Vizio P65-E1.

If the TV has been off for 10-12 hours, there is no signal received after turning on the tv.

Energy save is turned off. Issue only occurs at 2160p.

The fastest way to fix it is to unplug the HDMI from the back of the XG1v4, and plug back in. That generally fixes the problem.

Stupid question, how do I send someone a direct message?

[ComcastAndrew]

Try pushing the channel up to re-establish, I have the same tv and settings and this recently started. Checked power preferences and they were on, so double check that

[Dzl]

Well i have my second 4k hdr tv ( tried a diffent brand to confirm the problem is with comcast) now and when i turn on in the morning i get the "no signal" message.
Tried changing channel and changing input but still wont hdmi handshake w comcast xfinity box. Have to go through the lengthy comcast box pull the power to force a reset and wait 5 minutes for the box to come back up.
This is ridiculus that a problem has remained unsolved for so long.
Calling tech support is a joke.
Im an electrical engineer and it is so frustrating tryi g to co.municate with their helpdesk.
Please come up with a software update to correct this.

[MNtundraRET]

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@waddabilly wrote:
I am experiencing this exact issue with XG1v4 and Vizio P65-E1.

If the TV has been off for 10-12 hours, there is no signal received after turning on the tv.

Energy save is turned off. Issue only occurs at 2160p.

The fastest way to fix it is to unplug the HDMI from the back of the XG1v4, and plug back in. That generally fixes the problem.

Stupid question, how do I send someone a direct message?

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Stupid question, how do I send someone a direct message?

It is against Forum rules to PM any Comcast forum employee or Expert.

On a  a future post please ask permission from the person you wish to PM. They will reply if they except your reason for asking to PM.

[Juskray47]

No luck with this suggestion.

[Juskray47]

I wish I was as optimistic.  

[Chasehuck]

Spoke with a rep last night after going through all the solutions suggested here.. I get a no signal on my Vizio p65 4K. I thought it was due to it going to sleep after a certain amount of time, however the rep told me to adjust the system update time to see if that was causing the issue... and sure enough after changing to 6pm instead of running at 4am, I turned the tv on next day with no issue. However turned it back on at 9pm and there was the no signal.. do others see the same thing?

[Rustyben]

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@Chasehuck wrote:
Spoke with a rep last night after going through all the solutions suggested here.. I get a no signal on my Vizio p65 4K. I thought it was due to it going to sleep after a certain amount of time, however the rep told me to adjust the system update time to see if that was causing the issue... and sure enough after changing to 6pm instead of running at 4am, I turned the tv on next day with no issue. However turned it back on at 9pm and there was the no signal.. do others see the same thing?

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do you have power save function turned off?

[Chasehuck]

Yes I have Powersave off.  Doesn't matter since the box will restart every night (2-4am) regardless if it's on or off - that seems to be where the connection is lost.

[Rustyben]

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@Chasehuck wrote:

Yes I have Powersave off.  Doesn't matter since the box will restart every night (2-4am) regardless if it's on or off - that seems to be where the connection is lost.

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Is the set top box connected directly to the TV via HDMI? if so would you check the port using a flashlight or use the TV's remote to navigate to the HDMI capability of that port and be sure it is not a special port (example: CEC) and turn off the feature for that HDMI port or move the HDMI connector to a different port where the feature (like CEC) is not performed. The turning off of the TV when the set top box is connected to a CEC enabled port will put the set top box into standby which will turn on powersave mode which removes all video on the HDMI connector. ComcastAndrew has said on other posts to check to see if the STB is in standby mode by pressing the up channel button or the Xfinity (menu) button to cause the STB to leave powersave mode. The change in modes can take several seconds.

[Juskray47]

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@Chasehuck wrote:
Spoke with a rep last night after going through all the solutions suggested here.. I get a no signal on my Vizio p65 4K. I thought it was due to it going to sleep after a certain amount of time, however the rep told me to adjust the system update time to see if that was causing the issue... and sure enough after changing to 6pm instead of running at 4am, I turned the tv on next day with no issue. However turned it back on at 9pm and there was the no signal.. do others see the same thing?

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Yes, this is exactly what we are experiencing.   Interestingly, I was originally led to believe this was a Samsung/Comcast issue.   Definitely a Comcast issue now. Others have Sony sets and now your Vizio.  Keep checking back on this thread.  This problem has not been solved for over six months.

[Dpintar390]

I have the same issue with my tv and I have a Samsung 8000 series. I never had this issue with the old x1 box and I’m on my second new box because of this issue and it’s still happening. Talking this over with a lot of people it seems this is solely a Comcast issue! Verizon friends and direct tv friends of mine do not have this problem I sure hope there will be a fix soon because the amount of money I pay for cable on Comcast there should be a team that is working on this issue

[Chasehuck]

All,

I seem to have found the cause of my issue.  Since I've made the change I have not encountered the problem again.

I actually worked with a few different Comcast service reps (they were very knowledgeable/helpful!) - started by troubleshooting with settings on the box and settings on the TV.  Ultimately in an earlier post/thread I remember seeing the HDMI link option (that had been on Comcast Labs) worked for one person but that was removed from options.

Searching options on my TV I found the CEC was turned on.  There are probably more technical people on this thread that can explain better but since that was on it was causing my issue.  More on CEC: http://encyclopedia2.thefreedictionary.com/hdmi+cec

Once I turned the CEC option off on my TV, I have not had the problem since!

I'm not sure for Samsung/Sony if the option would use the same term as Vizio, but I would suggest searching your TV settings for this to turn it off - reading that CEC still has some kinks across vendor products.

[TamaraMorgan]

I’m having the exact same problem. dish network worked just fine. Comcast does not work. Has anyone found a solution that works? I am getting very frustrated. I have a Samsung Curved 55” 4K Comcast says it’s Samsung. When I power at the Xfinity box, it says welcome loading, this may take a few minutes. So I know the box is talking to the TV and the HDMI cord is good. As soon as it loads it goes to a blue screen. No amount of unplugging any of my cords fixes it and when I power the Xfinity box, it says welcome loading, this may take a few minutes. So I know if the box is talking to the TV and the HDMI cord is good. As soon as it loads it goes to a blue screen. No amount of unplugging any/all of my cords fixes it. It only works when it wants to.

[Juskray47]

Unfortunately this did not work for me.  I’ve got a Samsung TV and the setting for CEC was off.  Still get the blue screen whenever I turn on the TV after it’s been off for a while.   Same issue for over six months now.  Fingers crossed for a fix, or for Dish to buy Comcast!

[Tvguy2]

I just plugged in xg1v4 box tonight after years of no issues with previous x1 box. (Wanted that 4K upgrade). Plugged in and worked perfectly for 2 hours. Then went black. I still have audio if that even makes sense. Did all the changing of cables, changing inputs on tv, rebooting, system refresh, CEC on/off, etc. box has power and I can change channels, as I can hear the tv thru the tv speakers but screen is black. Unplugged xg1v4 box and plugged old box back in (haven’t shipped it back yet) and it works just perfectly. When checking online both boxes when plugged in appear connected. I have a new vizio p-series. I know there are no answers here, but sharing my issue as I will Return this box and probably just keep my old one

[RobertWy]

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@Tvguy2 wrote:
I just plugged in xg1v4 box tonight after years of no issues with previous x1 box. (Wanted that 4K upgrade). Plugged in and worked perfectly for 2 hours. Then went black. I still have audio if that even makes sense. Did all the changing of cables, changing inputs on tv, rebooting, system refresh, CEC on/off, etc. box has power and I can change channels, as I can hear the tv thru the tv speakers but screen is black. Unplugged xg1v4 box and plugged old box back in (haven’t shipped it back yet) and it works just perfectly. When checking online both boxes when plugged in appear connected. I have a new vizio p-series. I know there are no answers here, but sharing my issue as I will Return this box and probably just keep my old one

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You might have a defective box.  I have two 4k DVR's and have had zero issues with them.

You can get a free swap at your nearest Xfinity Store (if they have them in stock).

[CCShane]

Tvguy2 -- Thank you for reaching out to us in the Forums and I apologize for the issues you are having. Were you able to swap your box out as suggested? 

[xTheDudex]

So is Comcast/Xfinty in the habit of deleting posts now?

[xTheDudex]

@ComcastLeon Would you still like my TV/Box info or have you given up on this issue?

[mike2022johnsto]

Issue with Sony TV, as well. Not a blue screen. Black screen. No sound. Nothing. Unplugging and replugging the hdmi cable is the only thing that works. HDMI cable was perfectly fine with directv. I can see from researching this forum that this problem has been ongoing for years, and comcast's continued response is that it must be a problem with their customer's equipment. Apparently the only solution is to put up with it until my contract expires, then return to satellite.

[Tark1]

This solution may be Samsung specific but the only way I have been able to resolve the blue screen failure issue is to turn off HDMI UHD Color on all ports.  Turning it off only on the port connected the XG1v4 box did not resolve the issue.  This could be due to the single port connection from the multi-port one connect box to the TV.

[xTheDudex]

Turning off UHD color isn’t a fix it will toggle the screen and get the picture back but is not a permanent fix. Even if it was...having to turn off UHD color for this cable box is ridiculous.

[mike2022johnsto]

Decided to give them  one last try. They replaced the 'new' box, evidently designed for 4k tv's (I have a smart tv but not a 4k), with one of the previous models (the one with a clock on the front). No more problems. It has been over a week now, and the tv turns on perfectly every time.

[AutumnLake]

I am having the same issue as the others here, we have the X1 DVR Box and have had it reset a multitude of times but are still getting the blue screen on our TV.  I have called into customer support and both times they told me that we needed to switch to a coax cable because our TV is no longer able to support the high bandwidth of the box (this seems strange being that we have had no issues in the 8 months we have been customers and it was working this morning).

What do we do now?  We do not have a coax cable, I do not want to go buy something for a service that I already pay $180 a month for, and our TV is only a couple of years old and high quality (Samsung) so that should not be the issue.

[glboater]

I just went to the new X1/4K box and am having the same issue. It first started with me when I went to HDMI 2 for 4K Apple TV. It doesn’t happen all the time,  so I’m trying to pinpoint when it happens. So here’s my question, do I really need the Xfinity 4K box since nothing is broadcast in 4K. I don’t use the apps on my Samsung 4K UHD nor do I use Netflix, You Tube, etc through Xfinity. I use my 4K Apple TV for all that. So, am I better off going back to the “old” box?

[glboater]

I just went to Expert Settings on my Samsung TV and turned off CEC. I’ll monitor to see if there is a reoccurrence of the Blue Screen and report back. 

Great thread by the way. 

[RickGr4]

I am not sure why you folks bother to set the XG1V4 to the 2160 (4k) output setting. It hs a noticably better picture when set to 1080 and when set to 1080 the handshake issues seem to go away for many people.

Personally I think there is soomething wrong with the XG1V4 when set to 2160. The picture is much too soft and muted.

[glboater]

I assume you have a UHD 4K set?

[RickGr4]

Yes a calibrated LG OLED.
In case you aren't familiar, LG OLED is the best TV ever made....

[ComcastMartin]

Hi, AutumnLake. I want to help. I need to look into your account. 

Can you please private message me your full name? Thank you for posting to our forums. 

To send a private message, please click my name "ComcastMartin" then select "Send a Message" on the right side.