Sinista1's profile

New Poster

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2 Messages

Thu, Dec 17, 2020 7:00 PM

4K Undetected UHD in Video Settings

I'm not getting 4K from my Xfinity set top box... It's not recognizing the TV's 4K Output

 

Xfinity Set Top Box - XG1v4 (VOR 16:9 1080p 60 HD (Best Available)

TV - 65" Class JU6700 Curved 4K UHD Smart TV (Going through Xbox One X which handles 4K. Both HDMI cables are High Speed 4K Compatible. (3840-2160 60 - TV picture going out)

 

Is this issue with my box? It's supposed to be compatible...

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Accepted Solution

Rustyben

Expert

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24K Messages

5 m ago


@Sinista1 wrote:

I'm not getting 4K from my Xfinity set top box... It's not recognizing the TV's 4K Output

 

Xfinity Set Top Box - XG1v4 (VOR 16:9 1080p 60 HD (Best Available)

TV - 65" Class JU6700 Curved 4K UHD Smart TV (Going through Xbox One X which handles 4K. Both HDMI cables are High Speed 4K Compatible. (3840-2160 60 - TV picture going out)

 

Is this issue with my box? It's supposed to be compatible...


connect the set top box directly to the TV's HDMI1 or HDMI2 (see owner's manual). works then?

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New Poster

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2 Messages

5 m ago

It worked going direct to the TV... Strange... With each one on it's own HDMI I am now getting 4K UHD at 3840X2160 60FPS at each source.

Official Employee

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2.5K Messages

5 m ago

Hi, Sinista1. It's great to hear that it's working now! Please let us know if you have any further questions or concerns.

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New Poster

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1 Message

4 m ago

what do you mean connect cable box directly to tv. I'm having the same issue, I had the cable from my wall connected to the xfinity box and hdmi from box to tv.

dcfox

Regular Contributor

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291 Messages

4 m ago


@mamanat wrote:

what do you mean connect cable box directly to tv. I'm having the same issue, I had the cable from my wall connected to the xfinity box and hdmi from box to tv.


Yes that is the way he described. Make sure you have a 4k box to connect to a 4k TV. What box do you have and details would help here. The XG1v4 is needed for a cable connection for 4K then HDMI to 4k TV. 

CCAndrew

Diamond Problem Solver

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25.9K Messages

4 m ago

Not only have a 4K tv but utilizing the 4K port on the tv
dcfox

Regular Contributor

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291 Messages

4 m ago

@Tommy6o9gunzz  Not sure if this helps but when my  box was installed by a tech I noticed it was defaulted to 1080. I switched it to 2160 (max resolution)and it stayed there in device settings if that's what you are referring to. Also make sure you are using the using hdmi 1 or 2  input for your 4K tv. 

New Poster

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2 Messages

4 m ago

I’m having the same problem system capability is 4K uhd I have the xg1v4 box but the display says 4K uhd undetected

New Poster

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2 Messages

4 m ago

Yeah it says it’s on max resolution 2160 but on the right side of the screen it says tv undetected
dcfox

Regular Contributor

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291 Messages

4 m ago

Are you sure your tv is 4k and are the right HDMI port? Mine says for TV on right 4kUHD then the brand  Samsung Electrical company. 

New Poster

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1 Message

4 m ago

Yeah my Tv only has 3 hdmi ports. I’ve tried all three but none of them make it to where it says detected

Official Employee

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2.5K Messages

3 m ago

Hi, Melissa197322 and Tommy6o9gunzz. Sorry to hear you're still experiencing trouble with this. In this link: https://comca.st/3asOhUM you will see that, "4K UHD and UHD/HDR streaming is only available on specific TV models and may not be supported on all TV/receiver HDMI ports. You should refer to your TV manual to see if you can receive 4K or 4K/HDR content." It was mentioned above, but you'll want to follow this as well: https://comca.st/3pM9orI. Have you made that that both the TV and the HDMI cord are HDCP 2.2 compliant? Also, have you tried using another HDMI cord perhaps?

I am an Official Comcast Employee.
Official Employees are from multiple teams within Comcast: CARE, Product, Leadership. We ask that you post publicly so people with similar questions may benefit from the conversation.
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New Poster

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12 Messages

2 m ago

Has this been fixed. I have the 4k xfinity box, 4k hdmi 2.2 cord, and my TV's hdmi ports are all 4k 2.2 compatible. When I go to display settings it shows 4k uhd undetected under TV.

Official Employee

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66 Messages

2 m ago

Hi @rhazelrig79, thank you for reaching out to us here on Xfinity forums. Sorry to hear you are having HDMI concerns. Did you look into the settings within our box? What is the selection for Video Output Resolution? 

I am an Official Comcast Employee.
Official Employees are from multiple teams within Comcast: CARE, Product, Leadership. We ask that you post publicly so people with similar questions may benefit from the conversation.
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New Poster

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12 Messages

2 m ago

16:9, 2160p60 4K UHD (Best Available)

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