Help with Refresh Rate

[purple stain]

I just recently got a Samsung 58" Plasma.I know the refresh rate is 600hz but when i plug my computer into it it says the max reported is 75hz.I figured it would be able to do 120hz at the least but it's not working.60mhz seems to be the max.I've tryed both HDMI cable and VGA cable but neither will do more than 60hz.
Using a XFX6870.

Does anyone know how to use more than 60hz?

Could it be the HDMI cable?

 

[purple stain]

Is my question in the wrong place?
Could an admin possible move it plz...ty

 

[sabot00]

The refresh rate being 600Hz is absolute marketing bullshit. The highest TV rates I've seen is 240Hz, but the problem?
The input is NOT 120Hz or 240Hz, you are still stuck with HDMI most of the time which gives you 60Hz input, then a chip on the TV "guesses" and adds frames in.
Some of the High refresh rate TVs do support 120Hz input.

Please give us the exact model, I do honestly believe Samsung is not stupid enough to advertise 600Hz.

 

[purple stain]

I just figured all Plasmas were 600hz refresh rates because their plasmas.The most i've seen from a regular LCD or LED is 480hz.But i think their brand new so you don't see many of them.
Here's the TV over at samsung

http://www.samsung.com/us/video/tvs/PN58C550G1FXZA

I can understand the cable company not allowing over 60hz but why isn't it possible with the computer.Could it be the HDMI cable?

 

[sabot00]

No, not the cable company, HDMI itself is rather bloated and no better than a Single-link DVI, which is basically 12 year old tech.

Bottom line: You need a dual link DVI or DisplayPort in, HDMI can't do it.

It mentions "600Hz Subfield Motion Refresh Rate", that means the TV is divided into 10 60Hz zones, and the zones refresh asynchronously (not at the same time), so with Samsung logic, 10 * 60 = 600.
So basically it's even more of a gimmick than 120/240Hz LCD's.

1. HDMI does not support the input (HDMI 1.4 might, not sure what your TV has)
2. Your TV is not actually 600Hz in the monitor sense of Hz.

 

[purple stain]

After reading this i think i might understand it more.

http://www.audioholics.com/education/cables/120-hertz-hdmi-cables

That explains that the source is sending the 60hz single which i understand but the source coming from my graphics card/computer can be stonger.Like playing a video game for example has unlimted frames only as much as your card can produce.Which is where i'm at a loss...

 

[purple stain]

Just a single display port will do?Could you explain the display port more plz.

 

[sabot00]

DisplayPort is a specific connector type, http://en.wikipedia.org/wiki/DisplayPort
It is considered NextGen (unlike HDMI) due to it's higher bandwidth.

Your Computer cannot send anything more than a 60Hz display because the CONNECTION does not support it.

You are basically saying, I have a 4-lane highway, I just added another road to lead on to it, now it should become a 8-lane highway.

 

[purple stain]

So by connection you mean the HDMI cable?So using a display adapter would work then?
Does that plasma TV support a displayport?

 

[sabot00]

Under "Inputs and Outputs" I see:
4 HDMI Inputs
2 Component Inputs
1 Composite (AV) Input
1 PC Input (D-sub)
1 PC Audio Input (Mini Jack)
1 Ethernet Port
1 Optical Digital Audio Output
1 DVI Audio Input (Mini Jack)
1 RF Input

So no DisplayPort.

Here:
It mentions "600Hz Subfield Motion Refresh Rate", that means the TV is divided into 10 60Hz zones, and the zones refresh asynchronously (not at the same time), so with Samsung logic, 10 * 60 = 600.
So basically it's even more of a gimmick than 120/240Hz LCD's.

1. HDMI does not support the input (HDMI 1.4 might, not sure what your TV has)
2. Your TV is not actually 600Hz in the monitor sense of Hz.

So no matter what you can't get higher than 60Hz.

 

[purple stain]

What other combination of cables would work to get more than 60hz?
Would a displayort to hdmi adapter work?

 

[sabot00]

It mentions "600Hz Subfield Motion Refresh Rate", that means the TV is divided into 10 60Hz zones, and the zones refresh asynchronously (not at the same time), so with Samsung logic, 10 * 60 = 600.
So basically it's even more of a gimmick than 120/240Hz LCD's.

1. HDMI does not support the input (HDMI 1.4 might, not sure what your TV has)
2. Your TV is not actually 600Hz in the monitor sense of Hz.

So no matter what you can't get higher than 60Hz.

 

[purple stain]

I guess only a 3D TV is capable of going that high.

Thanks for all your help.

 

[purple stain]

Best answer selected by purple stank.

 

[sabot00]

No problem, hope you get what you want.

 

[Mousemonkey]

This topic has been closed by Mousemonkey