No signal when using uhd colour on samsung tv with 1080ti

[paulpiazza]

Hi Guys,

I have a problem that is really bugging me with my TV and graphics card and it goes as the title suggests.

I have a Samsung 4k HDR TV model ue55js8500 that has a bit of a problem when linked with my zotac amp extreme 1080ti.
It all started when I first tried to install the 1080ti. I originally had an EVGA 980sc that was working well with this TV but then I decided to upgrade some time ago, when I put the new card in I got the boot logo but then nothing after the windows logo. Ok I thought, go intro safe mode and uninstall the drivers and start again, This all worked until I reinstalled the drivers at which point it did the same. Essentially the pc was working but my TV was saying no signal at the input.
I eventually worked out why this was happening and it was a setting on my TV (the UHD colour setting was turned on) once I turned this off it worked fine and I kicked myself for doing so many installs before I realised.
My question is that why did it work with the UHD colour setting on the 980 and not the 1080ti. I can also see in the NVidia control panel that my colour options are limited and I can no longer see the RGB and full or 10 or 12 bit options (that I used to be able to see with my old card), I can seem to get this if I drop to 30hz from the 60hz that I am currently set at but that would say to me that I need to turn on the UHD colour on my TV again to allow the bit rate to be high enough, But every time I turn it on it just gives me the no signal input message on the TV as before. It is in the same hdmi slot as with my old card so in theory this should not have changed, and is the same cable as before (which is rated to cope with the data transfer rate) I have looked on various forums to find people have had similar problems but no solution. I have tried all the hdmi ports on my TV and also tried to change the input type as others have suggested on other answers to similar problems (ie pc or blu ray).
I originally left this thinking a driver update would fix it, but it has been 6 months now, I am on the latest windows and NVidia drivers, and my TV bios is all up to date so I'm pulling my hair out.
It isn't stopping me gaming but it is annoying me to the point I have had to reach out.

Thanks in advance guys!

 

[paulpiazza]

Thanks for your replies guys, think I am going to try the hdmi cable as it's the easiest thing to rule out first. Just strange it worked with my old card. Not really keen on reinstalling windows but will if it needs it. Let's see what the new hdmi cable yields first. Thanks again for your comments and I will keep you posted.

 

[paulpiazza]

So guys, thanks for your replies. The plot thickens for me though. I tried a new hdmi cable and when I turned the Uhd colour setting on the tv on this time it worked. So it definitely seems like it is the cable. I still have problems though. The hdr option now appears in the settings and when I turn it on the colours are really dull and washed out. When I play a film with hdr it brightens up a bit but then the picture keeps turning off and then on again. I have also seen speckles on the tv and even a sound issue once. I think it might be to do with my cable length as it is 5m long. I am going to send the cable I have bought back to amazon as it states it is good for the data I am trying to put through it and will buy a much better one and get it as short as I can manage and see how I go from there. Unless you guys have any other ideas.

Thanks again for taking the time to reply.