Dual link to HDMI? What are the cabling requirements?
I am sorting out various questions on the required 3D support.

As best I can tell, the Samsung 2233RZ requires dual link DVI to support the 120Hz frame rate to use the LCD shutter glasses.
I am also looking at the DLP options (for example, a Mitsubishi wd-65735 model), which appear to use a standard type A HDMI connector. Do I need a special dual link to HDMI cable to make this work? Can my nVidia 8800GT provide the correct data rate from a single link DVI to HDMI connector to display 1920x1080 content on a DLP?

Thanks for any advice!
I am sorting out various questions on the required 3D support.



As best I can tell, the Samsung 2233RZ requires dual link DVI to support the 120Hz frame rate to use the LCD shutter glasses.

I am also looking at the DLP options (for example, a Mitsubishi wd-65735 model), which appear to use a standard type A HDMI connector. Do I need a special dual link to HDMI cable to make this work? Can my nVidia 8800GT provide the correct data rate from a single link DVI to HDMI connector to display 1920x1080 content on a DLP?



Thanks for any advice!

#1
Posted 11/02/2009 07:14 PM   
As far as I know and as [url="http://en.wikipedia.org/wiki/HDMI#Connectors"]Wiki[/url] says is HDMI Type A not Dual-Link capable.
Only Type B is Dual-Link capable but this connector seems to be used nowhere.

But I think I have heard that DLP's don't need 120Hz. They are driven with 1080i for stereo-mode.
That means 1920x1080@60Hz with two half-frames per frame. One half-frame for the left eye and the other one for the right eye.
The DLP internally splits the frames and output it as 120Hz.
But as I said I'm not sure.
As far as I know and as Wiki says is HDMI Type A not Dual-Link capable.

Only Type B is Dual-Link capable but this connector seems to be used nowhere.



But I think I have heard that DLP's don't need 120Hz. They are driven with 1080i for stereo-mode.

That means 1920x1080@60Hz with two half-frames per frame. One half-frame for the left eye and the other one for the right eye.

The DLP internally splits the frames and output it as 120Hz.

But as I said I'm not sure.

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#2
Posted 11/03/2009 05:43 PM   
Do not use a double rate DVI into HDMI adapter I did and every HDMI port I plugged into failed in milliseconds and I needed to have the mainboard of the TV's (2 seperate units) replaced. I thought it might help but was a HUGE mistake, follow the recommendations to the letter!!!
Do not use a double rate DVI into HDMI adapter I did and every HDMI port I plugged into failed in milliseconds and I needed to have the mainboard of the TV's (2 seperate units) replaced. I thought it might help but was a HUGE mistake, follow the recommendations to the letter!!!

EVGA X58 760 Classified (VREG,NB/SB WB Koolance seperate loop), i7 980X@4.4+GHz 33x134 1.3625V Thermaltake Venoumous S with CoolerMaster push-pull fans, 12GB OCZ 8-8-8-24@16000 1.65V, ATI 5970 WB Koolance on seperate loop @1.16V 850-1200 or Nvidia 295, Xonar HDAV 1.3 Deluxe into Yamaha RX-V3800, 4x300GB Velociraptors Raid 0 on Adaptec 4505 RAID, 4x60GB OCZ Vertex SSD RAID 0 LSI 9750, 1TB WD SATA3, 128GB Falcon SSD, Thermaltake 1200W, Thermaltake TX Mozart, Logitech diNovo Bluetooth Keyboard + MX1000 Mouse, Logitech Sphere MP webcam, Logitech cordless Rumblepad2, 50" Samsung 3D PS50B450 plasma, Samsung SSG1000 3D glasses, Nvidia 3D Vision, Windows 7 Ultimate x64 RTM

#3
Posted 11/05/2009 06:21 AM   
[quote name='MorSage' post='945701' date='Nov 5 2009, 07:21 AM']Do not use a double rate DVI into HDMI adapter I did and every HDMI port I plugged into failed in milliseconds and I needed to have the mainboard of the TV's (2 seperate units) replaced. I thought it might help but was a HUGE mistake, follow the recommendations to the letter!!![/quote]

Can you explain this a bit more?

I have a Dual-Link-DVI on my XPS M1730 and I'm using a DVI->HDMI(19 pin Type A) Cable from Clicktronic with my Samsung LE37B650 and I have never had a problem. I'm driving the Samsung with 1920x1080@60Hz.
Bigger resolutions or framerates are not possible with HDMI Type A cause the two extra data-cable-pairs from the Dual-Link-DVI are not routed through to the HDMI.
HDMI Type A has 3 data-cable-pairs only, the Dual-Link-DVI has got 5 .

Maybe you killed your HDMI's with a bigger framerate?
[quote name='MorSage' post='945701' date='Nov 5 2009, 07:21 AM']Do not use a double rate DVI into HDMI adapter I did and every HDMI port I plugged into failed in milliseconds and I needed to have the mainboard of the TV's (2 seperate units) replaced. I thought it might help but was a HUGE mistake, follow the recommendations to the letter!!!



Can you explain this a bit more?



I have a Dual-Link-DVI on my XPS M1730 and I'm using a DVI->HDMI(19 pin Type A) Cable from Clicktronic with my Samsung LE37B650 and I have never had a problem. I'm driving the Samsung with 1920x1080@60Hz.

Bigger resolutions or framerates are not possible with HDMI Type A cause the two extra data-cable-pairs from the Dual-Link-DVI are not routed through to the HDMI.

HDMI Type A has 3 data-cable-pairs only, the Dual-Link-DVI has got 5 .



Maybe you killed your HDMI's with a bigger framerate?

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#4
Posted 11/05/2009 06:29 PM   
The double rate DVI to HDMI adapter has 4 more pin sockets, cant remember now I think 29 instead of 25 (the 4 extra pins near the single flat pin oppisite the banks of parrallel pins). Had absolutely nothing to do with frame rate as 1. not changed, 2. both TV's were capable of full HD 1920X1080p resolution and after changing mainboards both again display it plus 7.1 sound via a single DVI-HDMI connection (resolutions above this are not even selectable on TV or Nvidia/PC), 3. there is no improved resolution or refresh rate associated with double rate connections on either 3D plasma or normal non 3D LCD TVs. Bigger resolutions than 1920x1080p are not possible with most TV's due to screen/processesing limitations and single rate (recommended) do this easily. I was surprised that this happened because all video cards have double rate DVI pins and 1 of the TVs whose HDMI ports failed was just a normal Samsung LCD. There is a chance that the DVI-HDMI adapter was faultly and caused the problem/s but it was expensive with gold coated pins.

In summary there is nothing to be gained by a double rate DVI connection except for 120Hz 3D LCDs that do not transmit 2 images per cycle) and that my attempt to get the DVI-HDMI link to carry sound as well as video (limitation of single rate DVI-HDMI connection fully saturated by 3D 1378x768 60Hz double buffered signals but can do 1920x1080p+sound signals) by this method FAILED MISERABLY!
The double rate DVI to HDMI adapter has 4 more pin sockets, cant remember now I think 29 instead of 25 (the 4 extra pins near the single flat pin oppisite the banks of parrallel pins). Had absolutely nothing to do with frame rate as 1. not changed, 2. both TV's were capable of full HD 1920X1080p resolution and after changing mainboards both again display it plus 7.1 sound via a single DVI-HDMI connection (resolutions above this are not even selectable on TV or Nvidia/PC), 3. there is no improved resolution or refresh rate associated with double rate connections on either 3D plasma or normal non 3D LCD TVs. Bigger resolutions than 1920x1080p are not possible with most TV's due to screen/processesing limitations and single rate (recommended) do this easily. I was surprised that this happened because all video cards have double rate DVI pins and 1 of the TVs whose HDMI ports failed was just a normal Samsung LCD. There is a chance that the DVI-HDMI adapter was faultly and caused the problem/s but it was expensive with gold coated pins.



In summary there is nothing to be gained by a double rate DVI connection except for 120Hz 3D LCDs that do not transmit 2 images per cycle) and that my attempt to get the DVI-HDMI link to carry sound as well as video (limitation of single rate DVI-HDMI connection fully saturated by 3D 1378x768 60Hz double buffered signals but can do 1920x1080p+sound signals) by this method FAILED MISERABLY!

EVGA X58 760 Classified (VREG,NB/SB WB Koolance seperate loop), i7 980X@4.4+GHz 33x134 1.3625V Thermaltake Venoumous S with CoolerMaster push-pull fans, 12GB OCZ 8-8-8-24@16000 1.65V, ATI 5970 WB Koolance on seperate loop @1.16V 850-1200 or Nvidia 295, Xonar HDAV 1.3 Deluxe into Yamaha RX-V3800, 4x300GB Velociraptors Raid 0 on Adaptec 4505 RAID, 4x60GB OCZ Vertex SSD RAID 0 LSI 9750, 1TB WD SATA3, 128GB Falcon SSD, Thermaltake 1200W, Thermaltake TX Mozart, Logitech diNovo Bluetooth Keyboard + MX1000 Mouse, Logitech Sphere MP webcam, Logitech cordless Rumblepad2, 50" Samsung 3D PS50B450 plasma, Samsung SSG1000 3D glasses, Nvidia 3D Vision, Windows 7 Ultimate x64 RTM

#5
Posted 11/06/2009 03:31 AM   
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