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Displayport to HDMI Adapter for nVidia Quadro 5000
I have a Dell T7600 with a Quadro 5000. I need to attach the first
DisplayPort to an HDMI port on a TV monitor running 1920x1080P. I have many computers attached to the same TV and those work fine with digital display connections at 1920x1080, connected by HDMI. With the Quadro, the preboot BIOS screen is corrupted, and it has a square area in the BIOS text eaten out of the image. What kind of DisplayPort to HDMI adapter is required for Quadro 5000? There are so many standards to support on these things I am thinking I may have purchased the wrong adapter. The Displayport to HDMI adapter I purchased was this one: http://www.amazon.com/gp/product/B00EDT0072 And the screen is not working. -- W |
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Displayport to HDMI Adapter for nVidia Quadro 5000
On 1/13/2014 10:31 PM, W wrote:
I have a Dell T7600 with a Quadro 5000. I need to attach the first DisplayPort to an HDMI port on a TV monitor running 1920x1080P. I have many computers attached to the same TV and those work fine with digital display connections at 1920x1080, connected by HDMI. With the Quadro, the preboot BIOS screen is corrupted, and it has a square area in the BIOS text eaten out of the image. What kind of DisplayPort to HDMI adapter is required for Quadro 5000? There are so many standards to support on these things I am thinking I may have purchased the wrong adapter. The Displayport to HDMI adapter I purchased was this one: http://www.amazon.com/gp/product/B00EDT0072 And the screen is not working. Try the Wikipedia article on DisplayPort. DisplayPort has active and passive adapters. From the users point of view, one big difference is price. Things like VGA, you suspect that can't be passive, as VGA is analog and DisplayPort is digital. So that one is going to be more expensive and an "active" converter. DisplayPort to HDMI should be passive. At least, as long as the DisplayPort has an HDMI mode. http://en.wikipedia.org/wiki/Displayport "However, Dual-Mode DisplayPorts are designed to transmit a single-link DVI or HDMI 1.2/1.4 protocol across the interface through the use of an external passive adapter that selects the desired signal and converts the electrical signaling from LVDS to TMDS." So you're looking for video cards with a "Dual-Mode DisplayPort". Or, if the video card is lame, a capable active converter. http://www.newegg.com/Product/Produc...82E16815158351 "Unlike a passive adapter, the MDP2HDS actively converts single-mode and dual-mode DisplayPort output, which is ideal for graphics cards that do not output dual mode/multi-mode (DP++) signals, such as ATI Eyefinity cards. The Mini DP to HDMI adapter is compatible with Intel Thunderbolt , when connected directly to a supporting DisplayPort over Thunderbolt I/O port." "Maximum Digital Resolutions: 1920x1200" So it's not the perfect adapter, because it doesn't do the higher resolutions. Now, when I see an "active" device, I look for a power source. No power adapter comes with that thing, which means there must be a power pin on DisplayPort connectors. From the Wikipedia article... Pin 20 DP_PWR Power for connector (3.3 V 500 mA) So there is a source of power to run the active adapter, and no wall wart is needed (apparently). If the converter needed more power than that, then you'd need an adapter. Chips are available that easily run off 3.3V now. Chip designs can go as low as around 1.0V or so, but then it becomes difficult to do higher amplitude I/O signals with such a low source. With 3.3V, that can do lots of I/O standards in an adequate way. Paul |
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