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120hz mode - Samsung UN55EH6000

I recently got a 55' Samsung TV - UN55EH6000 and the specs say it is 120hz, but I can only get up to 60 no matter what I try.

I'm thinking it has something to do with the actual cable connection, but I am not sure what type of cable other than DVI-to-DVI would work.

The problem is, the Samsung TV doesn't have a DVI port, it has a HDMI port that says, HDMI 1 (DVI) which is a HDMI port.

I currently have my setup as a HDMI-Switch going to HDMI-2 (normal HDMI) and then three connections on it, one for the cable box from AT&T, one for the PC and also one for my PS3.

I tried taking the HDMI-to-DVI cable connected to the HDMI-Switch out and plugging it into the HDMI 1 (DVI) on the Samsung TV, but I still get "1920x1080/60p" 60p referring to 60hz.

I also have tried many times to go into Screen Resolution > Advanced Settings > Monitor and setting the refresh rate to 120Hz, but it just won't do anything. As soon as I close the Advanced settings page and go back, its right back at 60hz.

The current Monitor I have connected to the PC is a Samsung SA950 and it is using straight DVI-to-DVI and can be set (and is set) to 120hz and it just looks a lot better and smoother in 120hz mode and I would love to get 120hz on my Samsung 55' TV as well.

Also I have a GTX 570 and Windows 7.
and the link to my Samsung TV's User Manual in PDF, if needed. (Click here)

What could my possible options be at this point?
6 answers Last reply Best Answer
More about 120hz mode samsung un55eh6000
  1. So I guess there's no solution...

    but why do they advertise 120hz TV and 240 Clear Motion Rate if the TV only goes up to 60? The PC only does "1920x1080/60p" and the AT&T box only does "1920x1080/60i" and I haven't checked the PS3 but that's probably the same too.. any ideas on that..? Does samsung just bullshit people?
  2. Where in that manual does it mention 120hz? I looked but I couldn't see it.
  3. Best answer
    Its 120Hz output, it does not accept a 120Hz input like a monitor does.

    If on the 0.000001% chance it does, try going into the Nvidia control panel and making a custom resolution. Set the refresh rate to 120Hz and the resolution to 1920x1080. No guarantee you won't break something.

    Change resolution/Custom resolution/Create resolution.
  4. Best answer selected by enterthecookie.
  5. Yeah I had already tried the custom resolution, wouldn't allow me to go higher than 60hz.

    What's it mean when only the output is 120hz? How does it make the 60hz input into a 120hz signal? It's like fake 120hz?

    Also the manual didn't mention 120hz, when I was buying it from Amazon it just said 120hz. It wasn't the reason I bought it, but when I saw 120hz on the box it got me really excited. It's still a great TV and no complaints, also thanks for the answers.
  6. What they mean by that is that the display is 120hz, as in it displays 120hz images per second, but because the input (probably HDMI) is not capable of receiving 120hz of info, it only does 60hz. In TV mode it'll make up some filler frames to give the TV 120 frames a second, but that causes latency that is awful for an interactive device.
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