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Can’t Switch Box to 4K

nobbyv
Frequent Visitor

Can’t Switch Box to 4K

Just swapped out my DVR box for a XG1v4 4K-compatible X1 box to use with my Samsung 4K-compatible TV. However, when I go into the box Device Settings and try to select “16:9, 2180p60 4K UHD (Best Available)” under the Video Output Resolution, I get a “No Signal” message from my TV for about 45 seconds, after which the picture comes back but with resolution set to 1080p. What am I doing wrong?
CCAndrew
Diamond Problem Solver

Re: Can’t Switch Box to 4K

https://forums.xfinity.com/t5/X1/Intermittent-Video-Issues-Affecting-Some-Customers/td-p/3347927

Also check that you are on the rv’s 4K port, some TVs only have 1 and not all are 4K

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nobbyv
Frequent Visitor

Re: Can’t Switch Box to 4K

Thanks for the reply. The issue you linked to doesn’t sound like what I’m seeing. And yes, I am sure I’m on a 4K-compatible HDMI input on the TV. I actually tried two different HDMI inputs just to make sure one wasn’t faulty, and got the same result.
MNtundraRET
Expert

Re: Can’t Switch Box to 4K


@nobbyv wrote:
Thanks for the reply. The issue you linked to doesn’t sound like what I’m seeing. And yes, I am sure I’m on a 4K-compatible HDMI input on the TV. I actually tried two different HDMI inputs just to make sure one wasn’t faulty, and got the same result.

Are you using a newer 4K compliant HDMI cable capable of passing all the needed frequencies?


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CCAndrew
Diamond Problem Solver

Re: Can’t Switch Box to 4K

Did you try the solution provided?

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nobbyv
Frequent Visitor

Re: Can’t Switch Box to 4K

Figured out my issue: forgot I had an HDMI switch between the box and TV. Must not be able to pass 4K. Working now.
JN1980
Regular Visitor

Re: Can’t Switch Box to 4K

I'm having the same issue. However, I have no additional hardware between the TV and XG1V4. Verified my HDMI cable is 4K compatible. Trt to switch to 4K and the box is not recognized by the TV. Please help.
Rustyben
Expert

Re: Can’t Switch Box to 4K


@JN1980 wrote:
I'm having the same issue. However, I have no additional hardware between the TV and XG1V4. Verified my HDMI cable is 4K compatible. Trt to switch to 4K and the box is not recognized by the TV. Please help.

Is your HDMI 1 or HDMI 2 connected to the set top box? did you check your TV's owner's manual to determine which HDMI port to connect your 4K DVR? do you have to activate the port for 4k HDMI?



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JN1980
Regular Visitor

Re: Can’t Switch Box to 4K

Yes, all of my HDMI ports are set to 4K.
Rustyben
Expert

Re: Can’t Switch Box to 4K


@JN1980 wrote:
Yes, all of my HDMI ports are set to 4K.

usually there are only one or two 4k inputs. asking again, is your HDMI 1 or HDMI 2 connected to the set top box? 



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JN1980
Regular Visitor

Re: Can’t Switch Box to 4K

HDMI1
Rustyben
Expert

Re: Can’t Switch Box to 4K


@JN1980 wrote:
HDMI1

using your TV remote move to a different HDMI port then back to HDMI1 - what does the TV show for resolution for the Cable set top box? is the STB connected directly to the TV or to a sound bar or receiver?



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JN1980
Regular Visitor

Re: Can’t Switch Box to 4K

The STB is connected directly to the TV via the Samsung One Connect.
Rustyben
Expert

Re: Can’t Switch Box to 4K


@JN1980 wrote:
The STB is connected directly to the TV via the Samsung One Connect.

you will need to work with Samsung on the one connect device. there are other threads about this. if the TV does not have a direct 4k HDMI port on the back, it may not work.



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