120Hz problem

[Noobpleasehelp]

I am connecting Sony Bravia KDL-46EX500 120HZ Motionflow TV to MSI 970GTX 4G video card with HDMI.
TV specs are here https://esupport.sony.com/US/p/mode...late_id=1&region_id=1&tab=manuals#/manualsTab
I can't find resolution 1920x1080 120Hz,only 1920x1080 60Hz setting in Windows8 and Nvidia control panel I can find.
Am I correct if I play a online game I can only get max 60FPS at 60Hz?
I play Planetside 2 and I only get max 59FPS,would like higher FPS.
Very confused,what am I doing wrong?
Please help.:'(

 

[OlyAR15]

I thought those "120Hz" TVs only accept 60Hz signals. They have an internal doubler that interpolates the extra frames. If you really want to game at 120/144Hz, you need a gaming monitor.

 

[lavaheadache]

The tv does not accept a 120hz signal, most don't. Sorry bud... 60hz for you

edit... beat me to it. shouldn't have taken a leak before I responded to the thread, lol.

 

[Noobpleasehelp]

Then why do Sony specs say 120Hz?

 

[Fox5]

If you create a custom resolution in the nvidia control panel that outputs at 120hz, some 120hz TVs can accept it. There's no official HDMI spec for 120hz though, so it won't show up automatically. Give it a try and see if it works for you.

When TVs list 120hz, they can output at 120hz, but they can't typically take a 120hz input. They interpolate and add extra frames in between real frames that are the mathematical average of the two surrounding frames. It smooths out motion but also creates visual artifacts and additional lag.

 

[Noobpleasehelp]

I tried create custom resolution at 120Hz and screen blinks and I don't see window to keep changes but I see on TV display input is 121Hz.

 

[Borealis7]

TVs usually use a technique called MCM which gets an input signal and make it look like it has a higher refresh rate than it actually is. Frame Interpolation is also used to make the motion looks smoother.

but even if your TV could do 120Hz, i don't think you can carry 1080p120Hz over HDMI, you need Dual Link DVI for that, or higher spec HDMI which is not common in TVs yet.

 

[BonzaiDuck]

TVs usually use a technique called MCM which gets an input signal and make it look like it has a higher refresh rate than it actually is. Frame Interpolation is also used to make the motion looks smoother.

but even if your TV could do 120Hz, i don't think you can carry 1080p120Hz over HDMI, you need Dual Link DVI for that, or higher spec HDMI which is not common in TVs yet.

I think you hit the nail square on the head, so to speak. . .

I've been trying to sort all this out with my monster-gaming-PC feeding my HDTV encrypted cable channels with WMC as a low level, ~5% CPU usage, looking at KVM switches for the future and anticipating 4K monitor and TV while I stick with full-HD in the meantime.

And I think this is all determined at the GPU level under Windows: you won't get anything but 60 Hz refresh rate for anything hooked up to the gfx card's HDMI port. IN fact -- I'll correct myself -- a DVI-to-HDMI cable with the HDMI connection at the monitor leaves you with the same 60 Hz limitation.

It may well be that the HDTV's of 120 to 240 Hz "do something" internally to produce a better picture, but like another poster said -- you only get 60 Hz input from your cable provider, and you only get 60 Hz through an HDMI connection.

If I had known about all this when I purchased my LG TV four years ago when you could also get an HDTV @ 120 Hz, I can't be sure what the outcome might have been. I don't know if 25-foot DVI-to-DVI cables are available or even work over that length -- haven't looked into it. NO -- I think you can get cables like that; I'm using a DVI-to-HDMI right now for such a connection.

 

[TemjinGold]

The tv does not accept a 120hz signal, most don't. Sorry bud... 60hz for you

edit... beat me to it. shouldn't have taken a leak before I responded to the thread, lol.

You took a THREE MINUTE leak?

 

[therealnickdanger]

HDMI 1.4b allows support for 1080p120 (including 1080p60 per eye for 3D). HDMI 2.0 also supports 1080p120. Unfortunately it's not that simple, these are all the stars that must align to make it work:

1. GPU HDMI port must be compatible (I know from experience that the HD7750 and GTX970 are compatible)
2. The TV must accept a native 1080p120 input signal (usually only on one HDMI input is specially designed for this purpose)
3. The TV software/firmware/settings must allow for internal processing of a 1080p120 signal (no downsampling to 60Hz, no frame-interpolation, etc.)
4. The panel itself must be capable of 120Hz output.

Step 1 is pretty easy, since GCN/Maxwell support 1080p120 over HDMI. Step 2 is pretty easy if you buy a 4K HDTV. Steps 3 and 4 are much more difficult to decipher even when reading reviews, manuals, and forums.

What I can tell you with 100% certainty is that the Vizio P-series 4K HDTVs will do what you want. One caveat is with the P502ui-B1E... the "E" at the end of the model number is a native 60Hz panel, so while steps 1-3 will tell you that it is displaying 120Hz, it does not. The regular P502ui-B1 is native 120Hz as are the larger TVs in that series.

 

[happy medium]

What if you used a VGA connection on your TV? Would that make a difference?

 

[Fox5]

I'll just leave this article here:
http://www.blurbusters.com/overclock/120hz-pc-to-tv/

 

[Insomniator]

So 120hz on a TV is different than 120hz on a computer monitor. Got it. What a joke... 4k, 120hz, 140hz, 240hz, 600hz, HDM, DVI, DP... GOOD LUCK person walking into Best Buy.

 

[therealnickdanger]

What if you used a VGA connection on your TV? Would that make a difference?

Funny thing, some TVs with VGA can operate at 75 or 80 Hz at 1080p. The VGA connection usually bypasses all other "enhancements". Just make sure that if you go that route, you use a short, high-quality VGA cable to ensure the best image quality.

 

[BonzaiDuck]

Funny thing, some TVs with VGA can operate at 75 or 80 Hz at 1080p. The VGA connection usually bypasses all other "enhancements". Just make sure that if you go that route, you use a short, high-quality VGA cable to ensure the best image quality.

You have all "enlarged my mind," as the crazy Russian sailor says in "Heart of Darkness."

If you're going to make an outlay for a new 4K-capable HDTV, a 4K monitor, etc. . . . . if you're going to "do things" off the beaten path, so to speak -- all of this research would be necessary to avoid disappointments.

Personally, I'm peeved at myself for failing to look into "DisplayPort" earlier -- "fear of using something new when 'older' works." I might at least have used it for one connection to my monitor. My current HDTV doesn't have anything but several HDMI ports and the interfaces that preceded HDMI.

Well -- I need to post a thread asking for leads and advice about cables . . .

 

[y2kse]

Then why do Sony specs say 120Hz?

Because the output rate is 120Hz. This allows it to display various, common input rates without requiring any sort of 3:2 pulldown methods that introduce judder. Its most important for film content that is usually filmed at 24 fps but displayed on 60 Hz TVs. 24 doesn't divide 60 evenly, but it does divide 120 evenly. 120 eliminates judder since you don't need 3:2 pulldown.

 

[BonzaiDuck]

I'll just leave this article here:
http://www.blurbusters.com/overclock/120hz-pc-to-tv/

What about an LG 42LV5500 [-UA]? I got the HDTV to display its "product information." The damn PDF manual lists several different LED LCD, LCD and Plasma models that apparently use the same user instructions. [I may have picked up the [UA] part of the code on the web after getting the basic information -- can't remember. Wait a minute . . No, that's what it says on the TEE-VEE: 42LV5500UA or -UA]

This is not something I'm just going to jump into . . . Anyway, it's an LED LCD. . .

 

[Fox5]

What about an LG 42LV5500 [-UA]? I got the HDTV to display its "product information." The damn PDF manual lists several different LED LCD, LCD and Plasma models that apparently use the same user instructions. [I may have picked up the [UA] part of the code on the web after getting the basic information -- can't remember. Wait a minute . . No, that's what it says on the TEE-VEE: 42LV5500UA or -UA]

This is not something I'm just going to jump into . . . Anyway, it's an LED LCD. . .

The only way to know is to try.

There's no harm to the TV by forcing a custom resolution on the PC. If it doesn't work, the PC should just restore to the last settings after a few seconds.