Community Forum

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Highlighted
New Poster

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

I am having the same issue but only in the morning after the box has been idle all night. Tech support has been no help at all. Last tech told me to plug the box in to a different power outlet and one tech said to bad it does not work. We will let the developers know. When asking for advanced tech support or someone else higher up, they refuse to connect you. They state you need a service call and pay 70 dollars. They make Directv not look to bad even with the 2 year contract. Just frustated.

Highlighted
Contributor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Contact xfinity support again and ask them to check to see if you have the latest firmware update for your dvr box.  Should have been about July 7, I think.  That seems to help with the hdmi handshake issue.  Good luck

Highlighted
Expert

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

the HDMI handshake issue is not resolved (no signal msg usually issued from TV). I'm sure tehy will post here when it is fixed in firmware. the Xg1v4 boxes have been moved back to a 3/22 version (pluto TV won't work with that version). I fix mine by using TV remote and changing to roku then back to Xfinity's HDMI port and the connection wakes up.



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
Highlighted
Contributor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Well Comcast employee here on forum told me he thought a firmware had corrected handshake issue and I have not had another no service issue since.  So, we will see what happens I guess.  

Highlighted
Contributor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Also, I tried changing inputs as you do, but that didn't work.  I had to unplub hdmi cable from dvr and replug.  Better than rebooting.  I thought of getting a hdmi remote switch to try but not sure that would restore handshake.

Highlighted
Regular Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Thanks to everyone who has posted on this Comcast problem. I have experienced the same no signal problem for the past few months and after essentially trying all the possible solutions posted on this blog was resigned to buying a new tv. In addition to saving money on a new tv based on the numerous sales pitches I have received over the years from Verizon I certainly can save on my monthly cable, internet and phone bill with Comcast. If there is no resolution by Comcast to this issue within the next month then though in principle I do not like Verizon that seems the way to go.
Highlighted
New Poster

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

I gave up! Verizon works great and I don’t have to restart my box three times a day!
Highlighted
Frequent Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

I think we are on the latest firmware and still had the problem last night and this morning.  Turned off CEC off on my Samsung and will see if that makes a difference.  Powersave is off.  I found today if I turned on the TV with the AVR off the the TV came on.  Will see if that works in the future.

Highlighted
Regular Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

My master box also is cabled to a Samsung that is the one tv giving me a problem so will be very interested if turning off CEC on it helps.
Highlighted
Expert

Re: X1 TV Box--Sporadic "NO SIGNAL" Message


@jleszkoze wrote:

I think we are on the latest firmware and still had the problem last night and this morning.  Turned off CEC off on my Samsung and will see if that makes a difference.  Powersave is off.  I found today if I turned on the TV with the AVR off the the TV came on.  Will see if that works in the future.


using voice command 'about' what is rest of line to right of "STB version". the xg1v4 have been moved to a much older firmware but no reason has thus far been supplied.



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
Highlighted
Frequent Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

STB Version is AX014AN_3.3p14s1_PROD_sey

 

Fortunately , this issue so far doesn't happen too often (unlike for some others) but is occuring more frequently in the last month.  Today everything was OK.  Friday night and Saturday morning were not OK.

Highlighted
Contributor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Rusty, this is what I have.  Been working ok with no lost signal for at least a week. 

 

IMG_1135.JPG

Highlighted
Expert

Re: X1 TV Box--Sporadic "NO SIGNAL" Message


@Arth wrote:

Rusty, this is what I have.  Been working ok with no lost signal for at least a week. 

 

IMG_1135.JPG


this is only about the xg1v4 (4k DVR). others do not have this issue. you have the version 3 DVR



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
Highlighted
Silver Problem Solver

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Hello all,

 

I'm happy to investigate the issue further but I'll need a timestamp of the last occurrence of "No signal message" please. It will help us a lot. 


I am a Retired Official Comcast Employee and no longer actively support the Xfinity Forum.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark a post as the Best Answer!
Highlighted
Frequent Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

For me, last occurence of "no signal" was the morning of June 29th.  This may have been a continuation of the problem from Friday night June 28th when my wife couldn't get the problem resolved and I ended up trying several things on the next day until I had the HDMI handshake working.  I did turn off CEC on my Samsung and whether that it helping or not, I can't be certain.  But no issues since June 29th.

Highlighted
Silver Problem Solver

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Hi jleskoze, thank you for reaching back out to our forums and I would like to look into this further on my side for you. Could you please send me a private message with your full name to begin?

 

Thank you 


I am a Retired Official Comcast Employee and no longer actively support the Xfinity Forum.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark a post as the Best Answer!
Highlighted
New Poster

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

OK, ALL FIXED! Just had to return the 4k box for the older box. Not a single problem since the return. Definately a bad box as many have mentioned here.

Highlighted
Gold Problem Solver

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

ChrisGenna, glad to hear a box exchange did the trick! Thanks for letting us know on the forums! 

 

Ken


I am a Retired Official Comcast Employee and no longer actively support the Xfinity Forum.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark a post as the Best Answer!
Highlighted
New Poster

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Is there any resolution to this? I just started service with Xfinity and the only way to receive a singal from the box after turning my TV off is unplugging the box or sending a restart signal to it.

Highlighted
Gold Problem Solver

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

jmm88, appreciate you taking the time to let us know about your no signal message. What kind of box do you have? Is it an Xg1v4 (4K DVR)? Is ecosaver mode active on the box? 

 

Ken


I am a Retired Official Comcast Employee and no longer actively support the Xfinity Forum.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark a post as the Best Answer!
Highlighted
Contributor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

I would suggest you try a different hdmi cable between cable box and tv first before asking for a new box
Highlighted
Expert

Re: X1 TV Box--Sporadic "NO SIGNAL" Message


@Arth wrote:
I would suggest you try a different hdmi cable between cable box and tv first before asking for a new box

that won't help. and the new viersion of firmware just came to me last night but still have the no signal issue. it is a hardware or firmware issue that to date has not been resolved for the Xg1v4 set top box.



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
Highlighted
New Poster

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

It appears this problem has been going on for too long.  It ‘s difficult to believe that xfinity can’t fix this. I used to experience the  “NO SIGNAL”  on occasion but for the past 2 weeks it is every time we turn the TV back on.  How do I get this resolved ?  It seems unfair to be paying full price for a defective system.

 

 

Highlighted
Regular Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

I followed another users advice and on my tv I turned off energy savings, eco sensor, eco solution and auto protection time and CEC and after two months of daily resetting I now have gone 7 days without encountering the No Signal.
Highlighted
Frequent Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

I'm almost at a month with no problems with No Signal.  Turning off "CEC" which is the ARC capability on the Samsung TVs seemed to have fixed it for my setup.  I also have the ECO settings off on the Samsung (which I also do regardless of this issue) and the powersaver is off on the Xfinity 4K DVR.  Can't remember if there are any other ECO settings on the DVR but they are off if they exist.  As previously mentioned, it is a "handshake" issue between devices and you are trying to prevent unnecessary handshakes or just keep a grip!  I have an AVR in the midst of this and I think I have it set to standby when the power is off so that may be helping too.   

Highlighted
New Poster

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

NOT a v3 vs v4 issue with me I have had it with 2 different v3 style boxes. Never had a v4....

Highlighted
New Poster

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

We are having the exact same issue for the past 4 or 5 months. It's driving us crazy! If Comcast can't figure out this issue, they need to offer credits for their customers. Customer service is essential. I desperately would like a fix to this issue. Comcast! Please work on this!
Highlighted
Silver Problem Solver

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Hello all,

 

Thank you for your feedback and for participating in our community. I apologize for the inconvenience due to the "No signal" message. As I mention before, I know that it's frustrating. It takes quite some time to resolve dut to not all customers who have XG1v4  DVR experience this issue. There are different setups and TV brands. Our engineering team is continually working to find out the cause and resolve it. 

 

We don't have an ETA at this time and we don't want to provide any unconfirmed information. 

 

I appreciate your patience!


I am a Retired Official Comcast Employee and no longer actively support the Xfinity Forum.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark a post as the Best Answer!
Highlighted
New Poster

Re: No signal and have to unplug power everytime

I would like to be added to this notification list. I have been having the same problem for years and am on my 4th box with the same issue. It seems to be happening more frequently. Very frustrating. Please advise.
Highlighted
Regular Visitor

Re: No signal and have to unplug power everytime

Have you tried the things I posted in my 7-25 post? Since I turned those things off I have not encountered the no signal issue.
Highlighted
New Poster

Re: No signal and have to unplug power everytime

Yes, and no joy!

Highlighted
Frequent Visitor

Re: No signal and have to unplug power everytime

Same thing here.  We're having to unplug the box and let it reboot to get a signal nearly every morning or if the TV is turned off for an extended period during the day.  This started last week after I turned in our old box (Pace XG1) and were given the new X1 box - Arris XG1.  

 

We even had a tech come out and check our signal strength, etc.  He did find some static on the line but fixed.  It wasn't until I started digging around on the forum that I found this and other posts that described exactly what is happening.  Apparently the techs and CS is not aware because they ran us through the ringer trying to figure out what was going on.

 

This is apparently a known issue, an issue that's been around for over a year.  This is a comment from the discussion from several months ago: "this is a current firmware issue for the xg1v4 hd/4K dvr. no estimated time of fix."  When will this be resolved? We're getting sick of it, especially paying over $200 a month for internet and cable.

 

Highlighted
Regular Contributor

Re: No signal and have to unplug power everytime

Been having this same problem, but with a non-DVR box (XG2v2). Tried multiple HDMI cables, including one certified by HDMI Licensing, same issue with all of them.

 

Best solution is to keep the box on 24/7, by not using the Power Saver mode.

 

Highlighted
Frequent Visitor

Re: No signal and have to unplug power everytime

Our new box stays on 24/7 and the power save us off. There actually isn't an external power button on it. The only thing I can do is unplug for 10 seconds and let the box cycle back on. Then it's fine ... until the TV is turned off for a considerable amount of time and/or overnight.
Highlighted
Frequent Visitor

Re: No signal and have to unplug power everytime

I haven't had the "no signal" issue in almost 2 months since making sure all power save functions are off and also disabled CEC on the Samsung TV.  But just started up with a new problem with being stuck on "Welcome" screen when turning on TV in the morning.  Powering off and back on fixes the problem.  This looks to be a totally separate problem from "no signal" and I read that using the "A" triangle button on the remote to do a restart will work as well - have to try that next time (tomorrow?).  I'm thinking since the TV sees something from the X1 box then it isn't a handshake issue.

Highlighted
Contributor

Re: No signal and have to unplug power everytime

If you can see output from the dvr, you are correct it wouldn't be the hdmi handshake issue.   My handshake issues are few and far between now.  Not sure why, I keep powersave on and I make sure I do firmware updates when available.  Since I have troubleshooted all of the other wiring , and setting issues,  I believe the only choice is to wait for Xfinitiy to perfect their dvr box and firmware to avoid the handshake issue.  

Highlighted
Contributor

Re: No signal and have to unplug power everytime

Actually, the powersave setting on should benefit the initiation of the hdmi handshake between the dvr box and your tv since the TV turns on first and then the box starts.  But not always it seems!

Highlighted
New Poster

Re: No signal and have to unplug power everytime

I found A solution for my version  of the problem. I have a 39" Vizio with 3 HDMI inputs. Problem became unresolvable this morning. Switched the TV to HDMI2 (was 1), started working. HDMI1 works fine on my BluRay.

Time will tell....

Highlighted
Frequent Visitor

Re: No signal and have to unplug power everytime

 

I tried different HDMI slots as well.  What I figured out, if the box does not load immediately (just a black screen), I used to reboot the box and once it cycled through cable would come on.  I figured out, if I just unplug the HMDI cable from its existing location and and put it right back in, cable starts. It's a lot faster than cycling the box off and on.  This happened to me whether I was using HDMI 1, 2 or 3. 

 

And for the record, my X1 box is the latest and greatest version 2 weeks ago. I upgraded my old box due to glitches with the wallpaper sporadically coming on. My tv is new as of July 2019. I have switched out HDMI cables as well. I never had this problem ... not until I go the new X1 box. I've had a tech here, talked to CS twice, and also talked to advanced tech support. Not until I found this forum did I find out that this is a widespread problem and has been for well over a year.  Very frustrating.  Nine times out of ten in the mornings I have to unplug my HDMI cable and/or reboot my box to watch tv on this particular tv.  The small boxes in my bedrooms are fine. Never an issue.

Highlighted
Regular Contributor

Re: No signal and have to unplug power everytime

In my case, what seems to be happening is that the TV powers on first, before the box (coming out of power saver mode) and when it sees no signal coming from the box, it reports "no signal". Apparently, it isn't waiting very long for a signal (fraction of a second?), before reporting the lack of a signal.

 

I have resolved this, by keeping the box on 24/7. The TV (an LG 23") only has one HDMI port. 

 

The only other obvious solution would be to manually turn the box on via its power switch, first, then the TV. 

 

If the signal is coming from the box hits the TV before the TV comes on, then it's fine.

 

Highlighted
New Poster

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

I have the same issue since 4 months now and nobody from Comcast is able to resolve the issue other than just suggesting to reboot or reset the cable box. I have changed cable box, hdmi cables and checked all connections but the issue still persists and only when I watch Xfinity channels
Highlighted
Regular Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

I have been experiencing this issue, out of the blue, since early this year - with a box that had been working fine for over a year.  Same symptoms as everyone else - only the 'main' box, cable box nevery powered down, turn on TV in the morning, fine for few minutes then 'no signal', sometimes it comes back by itself, other times I have to re-boot the box to correct.   I'm now on my second 'new' box and it's still happening.  Comcast 'customer service' has quite a LARGE WINDOW FOR IMPROVEMENT!   It's ridiculous that their customers can only find the issue - kown issue and possible solutions - on this forum.   Every rep that interacts with their customers (store, phone, etc.) should be aware of it and provide some possible resolutions.   Where does the $$$$$ we pay every month go?  Certainly NOT into customer service.  This forum has provided me with some real insights regarding the HDMI handshake and settings.  I've turned off HDMI-CEC and will let you know the results.    

Highlighted
Regular Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

SO, I reply and get a 'canned response' from an 'employee'.  No way to run a company. 

Highlighted
Regular Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Had no effect.   Still drops signal when I first turn on TV in the morning (box is o 24/7).  Re-booting the box resolves the issue for the rest of the day.  This started with my old box.  Have tried two other NEW boxes and issue persists.  Comcast must have pushed out some type of 'update' that had an 'undocumented feature' that caused this issue.   Any other advice out there on things to try to work around the BUG in their software? 

Highlighted
Frequent Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

No new advice on TV or DVR box options other than what has been written in this thread.

 

A "Rube Goldberg" approach that I have seen used to reboot other devices with firmware issues is to buy a digital or mechanical timer (approximately $10 cost) to power off and then on the DVR at some point before you get up in the morning.  Should do the trick but not really the solution you are looking for.   

Highlighted
Regular Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

A wonderful low tech solution!  I've got several timers and will plug the box into one - set to turn off/on at some time overnight.  We'll see if that solves it - at least for the morning.  Will update here with results.  BTW - it happens when I turn off the TV during the daytime as well, leaving it off for an hour or so.    Again, this began happening, totally out of the blue, on my old (over two years) box - TV is about 5 years old - sometime during this summer.  I assumed the box was 'going bad' and traded it for a new one.  I'm on my second new box and it's still happening so it certainly seems it's an issue with Comcast, not my TV.  Comcast 'techies' obviously don't test their equipment/updates completely.  This is a very annoying problem that NEVER should have passed their Quality Control area (if they even have one).     Their customers deserve better! 

Highlighted
Regular Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Has any progress been made on finding a solution to this problem? We just recently had our main box replaced with new hdmi cables and we are still having the same problem. The tech knew next to nothing about the issue when he visited. To the point that I was the one offering possible solutions. It is completely unacceptable for this issue to have not been solved by now.
Highlighted
Contributor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Well, the "No Signal" at start up has returned.  Yesterday after starting, I had audio but no video.  I unplugged the hdmi cable from box and replugged and video returned.  This morning at startup,  no signal was back, requiring a reboot of box.  Seems Xfinity still has a  ongoing hdmi handshake issue to resolve.  Note:   Xfinity tech and supervisior have admitted to me there is a unresolved problem.  I have tried many "corrections" including box replacements, hdmi cable replacements and changing settings on dvr box and tv.  For me they are still the best cable option available but Xfinity should have the resources to address the problem or explain fully why they can't.  Just saying!

Highlighted
Frequent Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

Our issue continues with the X1 box handshake to TV 95% of the time when the TV is first turned on in the morning.  Once in a blue moon, I do not have to reboot the box.  However, a couple of days ago, after the TV had been off for about 3-4 hrs during the middle of the day, I had to reboot the box. Bottom line, the issue continues.  Wondering just when they will resolve this issue. We pay far too much per month to have to deal with this.   And apparently it's been going on for over a  year according to posts in the forum here.

Highlighted
Frequent Visitor

Re: X1 TV Box--Sporadic "NO SIGNAL" Message

I, too, have experienced audio, but no video just as you described when unplugging the HDMI cable and plugging it back in.  Therefore, I don't even try that anymore. I simply unplug the cable box and let it cycle off and back on when the box fails to come on in the morning.