Mode not supported

[Rainiae]

Have just upgraded to 2TB box and the Tv now says mode not supported. Resolution not supported, change the resolution of the external device. 
im using a SAMSUNG TV. It only works if I tirn sky box off at plug and turn back on.

[TimmyBGood]

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@Rainiae wrote:

 Tv now says mode not supported. Resolution not supported, change the resolution of the external device. 

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That suggests the television is either not a UHD model (or is an early one) and the Q box is sending it UHD resolution.

To change the default output of the Q box:

1. Press Home on your Sky Q remote, then select Settings, followed by Setup.
2. Select Audio visual, then Picture resolution and select the resolution you want.

https://www.sky.com/help/articles/changing-the-screen-resolution-setting 

[TimmyBGood]

@Rainiae 

If the television is a rather elderly 'HD-ready' model then 720p may be appropriate, otherwise try 1080i

[cuke]

Or that input plus needs turning on within the tv's setting for the SkyQ HDMI input..

[Chodley]

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@cuke wrote:

Or that input plus needs turning on within the tv's setting for the SkyQ HDMI input..

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That would only affect HDR content though, I think?

[TimmyBGood]

I think on Samsung that's 'HDMI UHD color'

[Chodley]

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@TimmyBGood wrote:

I think on Samsung that's 'HDMI UHD color'

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Oh ok. What's "input plus" then?

[Rainiae]

That worked, thanks for your help.

[TimmyBGood]

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@Chodley wrote:

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@TimmyBGood wrote:

I think on Samsung that's 'HDMI UHD color'

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Oh ok. What's "input plus" then?

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Same thing, apparently, but on more recent models.

You connected your UHD Blu-ray player or UHD game console to your TV to watch a new release in 4K – now what? Use Input Signal Plus (also known as HDMI UHD Color) to optimize the TV for UHD content. The best part is on some of our TVs, the device is instantly recognized and this setting is turned on automatically.

https://www.samsung.com/us/support/answer/ANS00082465/ 

[cuke]

My 2019 Samsung has it, however and as pointed out, to be accurate I should have typed 'Input Signal Plus', my bad. As stated does the same.