geekman's profile

Frequent Visitor

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11 Messages

Sun, Nov 21, 2021 8:28 PM

4k not working through AV receiver

I recently purchased a new 4k UHD TV and received the XG1v4 after contacting comcast support. I use an Anthem MRX 720 receiver for all my AV connections. The receiver just passes the video signals through. The receiver is connected to the TV via a high-speed HDMI cable. The XG1v4 is connected to one of the HDMI inputs on the receiver. 

In the Device Settings->Video Display section of the X1 settings, there is a message that 4K UHD is undetected.


When I select either of the 4K output resolutions anyway, I get a black screen which eventually goes away and the original 1080p resolution is still in place. 

An Apple TV connected the same way (using the same cables and ports) is providing full Dolby Vision 4K UHD so I am confident this isn’t an issue with the receiver or TV or cabling.

There seems to be a problem with the ability of the XG1v4 to properly detect 4K capability.


Is there a firmware update or something that I might be missing on the XG1?

Please don’t suggest that I connect the XG1 directly to the TV. That works, but not supporting an AV receiver is unacceptable. 

MNtundraRET

Expert

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4.7K Messages

13 d ago

Can you get 4K on You Tube using the tv's You Tube app?  You allows you to confirm you are actually watching a 4k (or 8K) program in 4K.

Frequent Visitor

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11 Messages

@MNtundraRET as I mentioned, I’m able to watch Apple TV in 4K through the AV receiver. To answer your direct question, I’m also able to watch Apple TV in 4K using the app on the television. 

Official Employee

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3.1K Messages

Hello @geekman! Thanks for taking the time to reach out to us here on the Xfinity Forums for support.

I see it has been a few days since you last posted here and I wanted to check in to see if you found a solution or if you are still in need of some help? 

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

Frequent Visitor

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11 Messages

No, I haven’t found a solution. 

Official Employee

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421 Messages

There's not a great deal of content being broadcast in 4K right now, so that may be causing this irregularity. Have you tried streaming any of the 4K apps on the DVR, like Netflix, Prime, YouTube, etc., to see if they are being detected properly, like your Apple TV?

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick
MNtundraRET

Expert

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4.7K Messages

"Geekman" stated earlier that he was getting 4K using other apps not involving Xfinty.

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? Please mark an Accepted Answer!tick

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