4K TV reports native resolution as 1080

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Ciaran_Ire

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Jun 17, 2017
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Hi,

My Sony KD-65XD9305 reports its native resolution to Windows as 1080.

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My setup is HTPC with GTX1050ti connected with highspeed HDMI to Pioneer VSX 1131. This is then connected with another highspeed hdmi to my TV.

However, Windows display settings and Nvidia settings report native recommended resolution to be 1080.

I can choose 3840x2160, and my setup works, but I wonder why it doesn't recognise 4k as native?

Thanks for any suggestions!
 
Solution
Hello... Electrical "standards" are written ahead of "production"... so current availability may be limited. You first do the Engineering and Testing... and then it's up to the manufacturer's to take hold. But your product page does show "4096 x 2160 p @ 24 Hz" Spec and is line with HDMI 1.4.

The typical problems/questions arise here, for the gamers, that they want to use 144HZ monitors... and HDMI currently does not support this, as product buyer's are finding this out, when trying use their HDMI 1.4 cables... Display Port has this "standard" and cabling available for this to solve/provide for this option. B ) Thx for your questions here.
Hello... well... you have the option for 4K... just because it doesn't say "native" from the Video Card pull down list should not be a problem... it is just reading some text from the installed driver for the GTX1050ti. The 'native" tag does not change due to the monitor type used. B /

does the 4096 x 2160 setting work from the video card?

What is the "native" Freq of the 4K of the TV 30 HZ or 60 HZ? look in the TV manual/PDF for exact specs?

Sometimes the last HDMI ports on a TV are "special" for Computer graphic inputs... check your manual/PDF for the TV about this.
 



Hi,

Thanks for your reply.

4096x2160 works, but it overscans.


From the manual:

HDMI IN 1, 2, 3, 4 (support 4K resolution,
HDCP 2.2-compatible)
Video (2D):
4096 × 2160p (50, 60 Hz)*, 4096 × 2160p
(24 Hz)*, 3840 × 2160p (50, 60 Hz), 3840 × 2160p
(24, 25, 30 Hz), 1080p (30, 50, 60 Hz), 1080/24p,
1080i (50, 60 Hz), 720p (30, 50, 60 Hz), 720/24p,
576p, 576i, 480p, 480i, PC Formats
* 3840 × 2160p is displayed when 4096 × 2160p is
input

http://

 
Hello... OK good... you have 60HZ @4K TV specs.

do you have the 4GB or 2GB version of the GTX1050 ti?

I cant locate the any 4K performance specs/tests on the GTX1050 ti to see what it is capable of... are you planning on gaming or just Movie watching with this setup?
 


Hi Ricky, thanks. I don't think a 'HDMI 2.0' cable exists as such, but they are highspeed cables

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I have the 4gb card

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I game a little, but its not a priority. This is 95% for TV and Movies

 
Hello... Not all cables are internally made the same... but can look the same on the outside... there is a engineering "standard" for 4K@60 HZ and HDMI 2.0 or higher is needed... "high speed cables" is a "un-scientific" and vague term used by the seller/maker for their product. But it does list a maximum of "4096 x 2160 p @ 24 Hz" that makes it a HDMI 1.4 cable rating/spec. ...that could be the reason your signal is Over scanning @4096 x 2160 ...your video card is equipped/made with the HDMI 2.0b standard.
 


Hi - thanks for your help today. But I don't think discussing 'HDMI 2.0 cables' is going to help, given that they don't exist. HDMI 2.0 refers to hardware changes at the device, and only requires 'highspeed' cables. There is no such thing as HDMI 2.0 cables, only standard or highspeed. I have highspeed. And highspeed is the correct technical term:

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I don't think discussing cables is useful, other than to say my cables are highspeed, and correct. Thanks for your suggestions though.

 
Hello... Electrical "standards" are written ahead of "production"... so current availability may be limited. You first do the Engineering and Testing... and then it's up to the manufacturer's to take hold. But your product page does show "4096 x 2160 p @ 24 Hz" Spec and is line with HDMI 1.4.

The typical problems/questions arise here, for the gamers, that they want to use 144HZ monitors... and HDMI currently does not support this, as product buyer's are finding this out, when trying use their HDMI 1.4 cables... Display Port has this "standard" and cabling available for this to solve/provide for this option. B ) Thx for your questions here.
 
Solution
This is Solved ? But what was the solution ? Did you get you native resolution to 3840x2160 by swapping to a Higher Speed cable ? or is it still reading 1080p native ?
I have this same issue with 1080 Ti and Sony KD55x8500B !
 


I am affected too. I have a Sony Bravia 4K TV with the latest firmware, a Windows 10 PC with a Nvidia GTX 1060 and latest driver version, and an HDMI cable rated as "4K Video at 60 Hz, 2160p, 48 bit/px color depth, bandwidth up to 18Gbps".
Windows 10 and Nvidia control panel insist that the display is 1920x1080 native, which of course is not.
Googling reveals that this seems to be a Sony TV specific quirk.

It is not a problem until you come across some feature that is affected by the display native resolution.
For example the "GPU scaling" feature found in Nvidia control panel does not work for me: any game set to 1920x1080 is displayed as such on the TV instead of being upscaled to 3840x2160 (which is the resolution I am using for the Windows desktop).

 
Hi, all! I was facing the exact situation as yours, but have just fixed it by simple steps. I'm using SONY X80E TV, and GTX 1050 Ti with Windows 10 Home Edition. Simply press the home button on your TV remote control and go to settings. Choose "External Inputs" and select "HDMI Signal Formats" before switching to "Enhanced Format" from the pre-selected standard one. Now go to your driver to check the native resolution.
 
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