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 Post subject: How to get 120hz/1080p?
PostPosted: 06 Apr 2012, 02:35 

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Greetings,

I recently purchased a benq xl2420tx to connect to my laptop (Sager with a gtx470m) so i could play some 3d games and watch blue rays.

My question is how do I achieve a 120hz signal at 1080p resolution in 3d? Is that possible over HDMI or is a different cable type needed? Currently, the Nvidia control panel only offers 24hz at 1080p and 60hz at 720p.

Thanks!
Matthew


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 Post subject: Re: How to get 120hz/1080p?
PostPosted: 06 Apr 2012, 06:29 

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HDMI can't handle 120Hz in 1080P.

Try DVI if your Laptop has that.


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 Post subject: Re: How to get 120hz/1080p?
PostPosted: 06 Apr 2012, 09:33 
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For 120Hz at 1080p resolution you either need a Dual-Link DVI or DisplayPort connection to the laptop, you cannot get it through HDMI.


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 Post subject: Re: How to get 120hz/1080p?
PostPosted: 20 Apr 2012, 08:16 

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I've no idea why projectors do not support Checkerboard (at least the DLP ones), it's currently the best active 3D gaming solution at 1920x1080 over HDMI.
While only half resolution per eye, you still get the deception of full frames.

I've been watching Craigslist, hoping to spot someone with a broken DLP 3DTV that they give away if I haul it off. Then maybe I can yank the demuxer and signal sync circuits out and incorporate them into my HDMI 1.3 projector.

It makes me wonder if one of the new HDMI 1.4 projectors like the GT750 could be made to do it using rollermod, it has the demuxer and sync signal/emitter port.


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 Post subject: Re: How to get 120hz/1080p?
PostPosted: 27 Jun 2012, 01:43 
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Bloody wrote:
For 120Hz at 1080p resolution you either need a Dual-Link DVI or DisplayPort connection to the laptop, you cannot get it through HDMI.

Hello again Bloody,

This time I ask about a tw9000 projector connected to nvidia 580 card.
I got a good hdmi 1.4a cable to ensure the full 120 hz my projector is capable of, but now, like you said, I am stuck at 60 hz.

So, did I fall for a marketing trick or what. The projector ONLY has HDMI inputs (and some vga etc) and this means I can not use what the projector info says it can do?
Can't understand how they can say it can produce 120hz in 2d and 240 in 3d when you can't get that through the cables (HDMI) you MUST use with the projector.

I tried searching for displayport to hdmi but that adapter seems to only support hdmi 1.3.

So I ask you, who seem to know most about this stuff than anyone, if there is a way to get the 120hz the projector info says it has from the nvidia card?


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 Post subject: Re: How to get 120hz/1080p?
PostPosted: 27 Jun 2012, 11:44 
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The official Epson specs claim 240/480Hz, though these should be based on some sort of internal upscaling of lower framerate input, so probably more of a marketing thing. With HDMI 1.4 you are not capable of going over 1080p 24Hz 3D mode or 1080p 60Hz 2D mode unless high speed HDMI chips are used...


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 Post subject: Re: How to get 120hz/1080p?
PostPosted: 27 Jun 2012, 14:55 
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Bloody wrote:
The official Epson specs claim 240/480Hz, though these should be based on some sort of internal upscaling of lower framerate input, so probably more of a marketing thing. With HDMI 1.4 you are not capable of going over 1080p 24Hz 3D mode or 1080p 60Hz 2D mode unless high speed HDMI chips are used...

I see. Excellent answer as always.

Can one set up this high speed hdmi chip from a computer, such as mine, to the projector you think?


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 Post subject: Re: How to get 120hz/1080p?
PostPosted: 27 Jun 2012, 20:01 
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You need both a video card supporting these, like the latest generation of GPUs do, as well as high speed HDMI chip inside the display device. These high speed chips are available already, though it will take some time before we see TV sets and projectors using them on the market, hopefully the 2013 lineups will have some models...


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 Post subject: Re: How to get 120hz/1080p?
PostPosted: 28 Jun 2012, 16:19 
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Bloody wrote:
You need both a video card supporting these, like the latest generation of GPUs do, as well as high speed HDMI chip inside the display device. These high speed chips are available already, though it will take some time before we see TV sets and projectors using them on the market, hopefully the 2013 lineups will have some models...

Okay I understand now.. Thanks man!


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 Post subject: Re: How to get 120hz/1080p?
PostPosted: 29 Jun 2012, 12:00 

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Hello,

i have a question:

i just buyed this monitor: http://www.asus.com/Display/LCD_Monitors/VG278H/.

The Problem, i want tu run this Monotor witch my Alienware M14X. The Monitor hasn't Displayport but Dual DVI and the M14x hasn't DVI but Mini-Displayport.

Would a Mini-Displayport to Dual-DVI adapter resolve the problem and give me access to 1080p/120hz?

like this adapter: http://www.club-3d.com/isotope/c/cac-1150_web.pdf ?

thanks in advance for your help

moggy


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